bluuebunny/crossref_metadata_2025 huggingface dataset:
Synchronreluktanz-Motorspindeln in Werkzeugmaschinen*/Synchronous reluctance motor spindles in machine tools – Energy-efficient drives increase accuracy and reduce cooling requirements of machining centers
Authors: Weber M. , Helfert M. , Unterderweide F. , Abele E. , Weigold M.
Published: June 2021

Im Rahmen des vom Bundesministerium für Wirtschaft und Energie (BMWi) geförderten Projekts „ETA-Fabrik“ am Institut für Produktionsmanagement, Technologie und Werkzeugmaschinen (PTW) der Technischen Universität Darmstadt konnte die Energieeffizienz von Motorspindeln als Hauptenergieverbraucher von Werkzeugmaschinen durch Einsatz der Synchronreluktanztechnologie gesteigert werden. In der Konsequenz ergeben sich weitere Energieeinsparpotenziale und produktionstechnische Vorteile durch eine gesamtenergetische Betrachtung der Werkzeugmaschine mit Kühlsystem und intelligentem Spindelthermomanagement.

 

As part of the ‘ETA-Fabrik’ project funded by the BMWi, the Institute of Production Management, Technology and Machine Tools (PTW) of the TU Darmstadt has used synchronous reluctance drives to increase the energy efficiency of motor spindles as main energy consumers of machine tools. Subsequently, new opportunities for energy savings and advantages for the manufacturing process arise by taking a holistic view on machine tools including the cooling system, proposing an intelligent spindle thermal management.
Informationsmanagement in der Smart Factory*/Information management in the Smart Factory – The development and application of a Digital Shadow
Authors: Colangelo E. , Harteilf S. , Fulga-Beising S.
Published: June 2021

Um die Anforderungen der personalisierten Produktion bezüglich Effizienz und Flexibilität zu erfüllen, werden Ansätze im Rahmen von Industrie 4.0 vorgeschlagen. Damit keine isolierten Lösungsinseln entstehen, ist die Anwendung eines Informationsmanagementsystems notwendig. Innerhalb des Applikationszentrums Industrie 4.0 wurde am Fraunhofer IPA erforscht, wie der Digitale Schatten diese Rolle übernehmen kann und welche Funktionen er hierfür erfüllen muss.

 

In order to meet the requirements of personalized production regarding efficiency and flexibility, Industrie 4.0 approaches are recommended. The utilization of an information management system is necessary to avoid the creation of isolated solutions. It was reasearched at the Industrie 4.0 Application Center how the Digital Shadow is able to fulfill this role and what the required steps are.
Industrie 4.0 in der mechanischen Fügetechnik* (Teil 1)/Numeric process curve generation – Simulation-based online process monitoring systems for mechanical fasteners
Authors: Kropp T. , Fuchs N. , Nehls T. , Henkel K.
Published: June 2021

Die Einrichtung einer Prozessüberwachung beim mechanischen Fügen ist zeit- und kostenintensiv. Vorgestellt wird ein Vorgehen auf Basis einer numerischen Simulation unter Berücksichtigung stochastischer Einflüsse, welche die Einrichtung signifikant beschleunigen kann. Gleichzeitig wird eine Prognose über die Tragverhaltenseigenschaften bei variierenden Prozessparametern abgegeben. Die Erläuterungen erfolgen an einem klassischen mechanischen Verbindungselement.

 

A quality assurance system using process curves of mechanical joining procedures is time-consuming and costly. This paper presents an approach based on numerical simulation considering stochastic effects to significantly speed up the appliance of such monitoring areas. At the same time, a forecast of the resulting bearing behavior is produced. The generally applicable procedure is exemplified on lockbolts as a classical mechanical joining element.
Instandhalter sind Mitgestalter ihres Assistenzsystems/Maintenance engineers are co-designers of their assistance system
Authors: Keller A. , Adler S. , Zobel N.
Published: June 2021

Im Forschungsprojekt „CPPSProcessAssist“ wurde für vier kleine und mittlere Unternehmen (KMU) der Prozessindustrie ein modulares und mobiles Assistenzsystem zur Instandhaltungsunterstützung entwickelt. Neben der technologischen Entwicklung des Systems wurde im Projekt eine Vorgehensweise zur Gestaltung und Einführung des Systems in den Unternehmen erarbeitet. Mitarbeiter der Schicht und Schichtleitung, Projektingenieure, Instandhalter sowie Technologieentwickler wurden als Mitgestalter des Systems und der daraus folgenden Veränderungen im Unternehmen eingebunden. Das resultierende System bildet die unternehmensübergreifenden Anforderungen von Instandhaltungsaufgaben in der Prozessindustrie technisch ab und ist an vorhandene IT-Infrastrukturen anpassbar. Die gewählte Vorgehensweise zur Einbindung der Mitarbeiter in der Gestaltung des Systems trug dazu bei, die unternehmens- und nutzerspezifischen Anforderungen in das System zu integrieren sowie die Mitarbeiter zu Eingabe bedarfsgerechter Assistenzinhalten zu befähigen.

 

A modular and portable maintenance assistance system was developed for four small and medium-sized process manufacturers in the research project CPPSProcessAssist. Along with the technological development of the system, a procedure for designing and implementing the system in the companies was developed. Shift workers and managers, project engineers, maintenance engineers and technology developers were involved in designing the system and implementing the ensuing changes in their companies. The resulting system technically maps cross-company requirements for maintenance work in process manufacturing and can be modified for existing IT infrastructures. The selected procedure for involving employees in the system design helped integrating specific company and user requirements in the system and enabling employees to enter content in the assistance system based on their needs.
Data Analytics in der Produktionsplanung*/Data analytics for production planning
Authors: Veigt M. , Staar B. , Schukraft S. , Freitag M.
Published: June 2021

Durch die Digitalisierung im Kontext von Industrie 4.0 steigen die Datenmengen in produzierenden Unternehmen an. Data-Analytics-Methoden erlauben es, automatisiert Muster in diesen Daten zu erkennen, die Rückschlüsse auf die Leistungsfähigkeit des Produktionssystems geben. Der Beitrag beschreibt, wie sich Data-Analytics-Methoden nutzen lassen, um Einflussfaktoren auf die Termintreue zu identifizieren. Für die Evaluation werden die Produktionsdaten eines mittelständischen Prototypenfertigers analysiert.

 

With digitization in the context of industry 4.0 the data volumes in manufacturing companies are increasing. Data analytics methods allow to automatically identify patterns in these data, providing insights into the performance of the production system. This article describes how these methods can be used to identify factors influencing the due date adherence. The data of a medium-sized prototype manufacturer are used for evaluation.
Serienfähige Hochstromkontakte für integrierte elektrische Fahrzeugantriebe */High current contacts for integrated electric drives
Authors: Schriefer T. , Schreibmüller N. , Horwath C. , Moritz W. , Moosmann N. , Deibert A. , Gerberich T. , Schaumberger K. , Rauh H. , Hofmann M. , Nusser T. , Kaufmann F. , Schmidt M.
Published: June 2021

Dem steigenden mechatronischen Integrationsgrad im elektrischen Antriebsstrang des Automobils wird mit neuartigen Kontaktsystemen begegnet. Unter Einsatz analytischer und numerischer Modellbildung sowie experimenteller Prüftechnik werden Leistungskontakte entwickelt, um hohe Energiedichten innerhalb der physikalischen Komponenten Traktionsmaschine, Leistungselektronik und Batteriespeicher zu übertragen.

 

The increasing level of mechatronic integration in the electric powertrain of automotive vehicles is overcome by innovative power connectors. Utilizing analytical, numerical and experimental procedures, high-current connectors are developed to transmit electrical loads within the key components electric motor, power electronics and battery system.
Modale Regelung von Werkzeugmaschinen*/Modal control for machine tools
Authors: Peukert C. , Pöhlmann P. , Ihlenfeldt S. , Müller J. , Merx M.
Published: June 2021

Vorschubachsen von Werkzeugmaschinen werden oft mit mehreren, parallel wirkenden Antrieben ausgestattet. Auch zusätzliche Aktoren für die aktive Schwingungsdämpfung kommen zunehmend zum Einsatz. Im Beitrag wird die modale Regelung für Werkzeugmaschinen vorgestellt. Sie ermöglicht es, die Eigenformen individuell zu regeln und die angeregten Schwingungen mit allen verfügbaren Aktoren gezielt zu bedämpfen. Es werden Ergebnisse zur modalen Regelung am Beispiel einer Gantry-Anordnung vorgestellt.

 

Feed axes of machine tools are often equipped with several parallel acting drives. Additional actuators for active vibration damping are also increasingly used. This article introduces the modal control for machine tools. The modal approach enables the eigenmodes to be controlled independently and the excited vibrations to be damped specifically with all available actuators. The results for the modal control of a gantry arrangement are presented as an example.
PPS als Integrationsplattform*/PPS as integration platform. Efficient networking of production supporting IT systems
Authors: Brecher C. , Fimmers C. , Blanke P. , Storms S , Herfs W.
Published: June 2021

In der heutigen Zeit sind durch steigende Variantenvielfalt und Individualfertigung sowie enge Lieferzeiten unterstützende IT-Systeme in der Fertigung unerlässlich. Gerade für kleine und mittlere Unternehmen (KMU) stellt dies eine Herausforderung dar, weil individuelle Schnittstellenentwicklungen und maschinenspezifische Anbindungen zeit- und kostenintensiv sind. Mit einer Produktionsplanungs- und Steuerungssystem als Integrationsplattform sowie einer allgemeingültige Schnittstelle zur Maschinenanbindung kann dem bestehenden Handlungsbedarf entsprochen werden.

 

Nowadays, due to the increasing variety of variants and individual production as well as tight delivery times, supporting IT systems are indispensable in production. This poses a particular challenge for SMEs, since individual interface developments and machine-specific connections are time-consuming and costly. These challenges can be met by using a Production Planning and Control system as an integration platform and a generally valid interface to the machine connection.
Lizenzierung von Steuerungscode*/Licensing of control code – with a PLC as example
Authors: Krauß B. , Verl A.
Published: June 2021

Lizenzen sind in der Softwarebranche ein fester Bestandteil der Unternehmenserlöse. Um in der Automatisierungstechnik diese Geschäftsmodelle für Steuerungscode adaptieren zu können, werden weitere Prozesse und Softwarekomponenten benötigt. Die technische Durchsetzung der Nutzungsrechte basiert auf ausgestellten Lizenzen, deren Verwendung und einer angepassten Systemarchitektur. Exemplarisch sei dies an einer Speicherprogrammierbaren Steuerung (SPS) mit den zentralen Komponenten Runtime und Lizenzierungssystem gezeigt.

 

Licences are a main source of revenue in the software industry. To enable licensing of control code in automation technology, additional processes and software modules are required. The technical enforcement of the usage rights of control code is based on the generated license and modified system architecture. The main focus is on Programmable Logic Controller (PLC) with runtime and licensing system, which are components of a PLC.
Bewertung additiver Fertigungsverfahren*/Assessment of additive manufacturing technologies – Decision support for selecting additive manufacturing technologies
Authors: Gläßner C. , Yi L. , Aurich J.
Published: June 2021

Additive Fertigungsverfahren bieten durch den schichtweisen Aufbau von Bauteilen Vorteile gegenüber konventionellen Fertigungsverfahren. Die Vielzahl verschiedener additiver Fertigungsverfahren ist eine Herausforderung für die Identifikation eines optimalen Verfahrens für Funktionsbauteile. Der Beitrag stellt einen Ansatz zur Bewertung additiver Fertigungsverfahren vor, der zur Entscheidungsunterstützung bei der Auswahl des optimalen Verfahrens dient.

 

Being manufactured layer by layer, additive manufacturing technologies offer unique advantages compared to established manufacturing technologies. The large number of different additive manufacturing technologies makes it difficult to identify suitable technologies. This paper presents an approach for assessing additive manufacturing technologies, assisting in the selection of suitable additive manufacturing technologies.
Hybride additive Multimaterialbearbeitung/Hybrid additive Multi Material Processing – High-resolution hybrid additive Multimaterial production of individualized products
Authors: Seifarth C. , Nachreiner R. , Hammer S. , Hildebrand Jörg , Bergmann J.-P. , Layher M. , Hopf A. , Bliedtner J. , Meyer W. , Schönewerk J. , Rauch K. , Poppinga J. , Jähnert T.
Published: June 2021

Das Ziel von HyAdd3D ist es, mit neuer Anlagentechnik komplexe Bauteile additiv zu fertigen und gleichzeitig den Anforderungen einer Multimaterialfertigung gerecht zu werden. Das Projekt umfasst die Entwicklung einer hybriden Verfahrenslösung, welche in der Lage ist, neue Materialien mit funktionalen Zusatzstoffen zu verarbeiten. Der Beitrag beschreibt den HyAdd3D-Ansatz und beleuchtet den aktuellen Projektstand. Abschließend werden die aktuellen Ergebnisse zusammengefasst und ein Ausblick auf die folgenden Entwicklungsschritte gegeben.

 

The aim of HyAdd3D is to create complex additive manufactured components with novel equipment technology whilst simultaneously fulfilling the requirements of the multi-material manufacturing process. The project engages in developing a hybrid procedure solution that is able to process new materials with functional additives. This article describes the HyAdd3D approach and examines the current project status. All relevant findings are summarized to conclude and further developing measures are explained.
Auslaufintegrierte Anlaufproduktion*/Phase-out integrated ramp-up production. Challenges of planning manufacturing systems in the phase-out integrated ramp-up production
Authors: Bergs T. , Apelt S. , Rey J. , Trauth D.
Published: June 2021

Aufgrund von sich ständig verkürzenden Produktlebenszyklen sind produzierende Unternehmen dazu gezwungen, in immer kürzeren Zeiträumen Produktan- und -ausläufe durchzuführen. Die integrierte Herstellung von An- sowie Auslaufprodukt im gemeinsamen Fertigungssystem bietet Potenzial zur gesamtwirtschaftlichen Optimierung der Fertigung. Hieraus resultieren neue Herausforderungen beim Gestalten dieser Fertigungssysteme, die im Folgenden vorgestellt werden.

 

Due to ever shorter product life cycles, manufacturing companies are forced to carry out product ramp-ups and phase-outs in ever shorter periods of time. The integrated production of ramp-up and phase-out products in a common manufacturing system offers potential for the optimization of the global economy of production. This results in new challenges for planning these manufacturing systems which are presented in the following.
Konzeption digital vernetzter Produktionen*/Conception of digitally connected productions – Goal-oriented design of integrated production systems using maturity models for industry 4.0
Authors: Ungern-Sternberg R. , Leipoldt C. , Erlach K.
Published: June 2021

Technologieorientierte Ansätze bei der Konzeption von digitalisierten Produktionssystemen können zu Inkohärenzen und geringerer Effektivität des Gesamtsystems führen. Durch den hier vorgestellten zielorientierten und reifegradbasierten Ansatz wird eine Systembetrachtung ermöglicht. Das Resultat ist ein unternehmensindividuelles, abgestimmtes Konzept zur Integration von Industrie 4.0-Lösungen in ein bestehendes schlankes Produktionssystem.

 

Technology oriented approaches for digitalized production systems could cause incoherencies and a limited effectivity of the overall system. The presented goal-oriented approach based on a maturity model enables an overall system evaluation. Result is a company-specific, harmonized concept to integrate Industry 4.0 solutions in an existing lean production system.
Optimierung der Trocken- und Nasszerspanung von CFK*/Optimization of dry and wet machining of CFRP
Authors: Beckenlechner R. , Gebhardt A. , Baeten A. , Kornmann M. , Oblinger C. , Körner T. , Hufschmied R. , Oyanedel Fuentes J. , Frank A. , Lebmeier R.
Published: June 2021

Das Ziel dieser Arbeit ist es, die Trocken- und Nasszerspanung von CFK zu verbessern. Für die Trockenzerspanung liegt der Schwerpunkt auf der Entwicklung eines Spannfutters mit integrierter Absaugung. Dadurch soll ein höherer CFK-Partikelerfassungsgrad erreicht werden, der weitere Absaugsysteme und eine lange Belüftungszeit des Maschinenarbeitsraumes unnötig macht. Bei der Nasszerspanung wird der Einfluss von Kühlschmierstoff auf den Werkzeugverschleiß, die Bearbeitungsqualität und die Klebefestigkeit von CFK analysiert.

 

The objective of this work is to improve dry and wet machining of CFRP. For dry machining the focus lies on the development of a collet chuck exhaust system. This should achieve a higher CFRP-particle collection efficiency which renders further exhaust systems and additional exhaust times unnecessary. For wet machining, the objective is to analyze the influence of cooling lubricant on the tool wear, the machined quality and the bonding strength of CFRP.
Mit Digitalisierung zur agilen Montage
Authors: Schmitt R. H. , Krüger J.
Published: June 2021

Agilität in der industriellen Montage ist eine Antwort auf die Herausforderungen für den Erhalt der Wettbewerbsfähigkeit im Umgang mit zunehmender Komplexität in Produktdesign und Produktionsprozessen. Voraussetzung für die agile Montage ist die hochauflösende Digitalisierung der Produktion.
Spanende Bearbeitung mit Industrierobotern und Bearbeitungszentren*/Machining with industrial robots and machining centers – Analysis of the achievable component qualities in woodworking
Authors: Menze C. , Becker D. , Stehle T. , Möhring H.-C. , Helfesrieder N. , Lechler A. , Verl A.
Published: June 2021

Industrieroboter bieten eine große Flexibilität und einen großen Arbeitsraum bei verhältnismäßig geringen Investitionskosten. Gegenüber spanenden Werkzeugmaschinen sind die Steifigkeiten und Bahngenauigkeiten von Robotern jedoch geringer. Dennoch bieten sie für die Holzbearbeitung großes Potential, da die Prozesskräfte gewöhnlich kleiner und die Toleranzen höher sind als im Metallbereich. Dieser Beitrag stellt einen Vergleich der erzielbaren Bauteilqualitäten bei der Holzbearbeitung mit Industrierobotern und Bearbeitungszentren vor.

 

Industrial robots provide great flexibility and a large working area at relatively low investment costs. However, their stiffness and path accuracy are generally lower compared to machine tools. Still, they offer high potential for woodworking, as the process forces are usually smaller and the tolerances higher than in the metal industry. This paper presents a comparison of the achievable component qualities in woodworking with industrial robots and machining centers.
Schwingungsanalyse an Industrierobotern*/Vibration analysis of industrial robots
Authors: Karim A. , Michalkowski C. , Lechler A. , Verl A.
Published: June 2021

Dieser Beitrag untersucht experimentell das dynamische Schwingverhalten eines „KR-500–3 MT“ von Kuka mittels eines elektromagnetischen Schwingerregers (Shaker) an insgesamt 28 Messposen im Arbeitsraum. Diese Untersuchungsmethode ist neuartig, da die Ergebnisse mit einer Modalanalyse mit Impulshammeranregung verglichen werden. Ab der vierten Eigenmode entstehen Unterschiede aufgrund der Anregungsform. Zudem wird an jeder Pose eine Messung mit angezogener Motorbremse und eine mit aktiver Regelung durchgeführt und miteinander verglichen.

 

This paper explores experimentally the dynamic vibration behavior of a Kuka KR-500 MT, using an electromagnetic vibration exciter (shaker) on a total of 28 measuring poses in the working space. As such studies are not known, the results are compared to a modal analysis with impulse hammer excitation. Starting from the fourth normal mode, differences arise due to the form of excitation. Both measurements are performed and compared with each other on each pose with brakes applied as well as with active control.
Digitaler Produktionszwilling im industriellen Werkzeugbau*/Digital production twin in industrial toolmaking – Optimization of Change Request Management through the digital production twin in toolmaking
Authors: Schuh G. , Kelzenberg C. , Wiese J. , Kessler N.
Published: June 2021

Der Werkzeugbau beeinflusst als Befähiger der Serienproduktion dessen Leistungsfähigkeit und Geschwindigkeit maßgeblich. Die immer kürzer werdende Time-to-Market hat zur Folge, dass Werkzeugbaubetriebe im Rahmen ihrer Leistungserstellung zu jedem Zeitpunkt durch den Kunden induzierte Change Requests antizipieren und beherrschen müssen. Die Realisierung eines digitalen Produktionszwillings birgt das Potenzial, datenbasierte Entscheidungsunterstützung zur Optimierung des Change Request Managements einzusetzen.

 

As the enabler of series production, toolmaking has a decisive influence on its performance and speed, with the required time-to-market continuously decreasing. As a result, toolmaking companies must anticipate and master change requests induced by the customer at all times as part of their service provision. The realization of a digital production twin has the potential to use data-based decision support to optimize change request management.
Digitalisierte Tragbilder im Werkzeug-Tryout */Digital spotting images as a quantitative criteria for quality evaluation during tryout
Authors: Liewald M. , Essig P. , Bolay C.
Published: June 2021

Steigende Anforderungen an die Qualität von Außenhautteilen stellen Unternehmen in der Automobilindustrie vor neue Herausforderungen. Eine wichtige Rolle spielt dabei der Werkzeugentstehungsprozess, der von zeitintensiven Schleifarbeiten geprägt ist. Der Beitrag zeigt einen neuartigen Ansatz zur Datenrückführung von Traganteilen bestimmter Wirkflächenzonen in die Umformsimulation durch optische Messtechnik. Damit kann der aktuelle Tryout-Zustand mit der Simulation verglichen werden.

 

Increasing demands on the quality of outer car panels pose new challenges for manufacturing companies in the automotive industry. The tryout process of dies needs special consideration as it is characterized by time-consuming manual grinding operations. This paper focusses on a new approach for data feedback of contact areas into forming simulation by optical measurement technology. This allows for comparing the current tryout state with the forming simulation.
Qualität schergeschnittener MKV-Bleche*/Quality of sheared metal-plastic composite sheets. Influence of the cutting parameters on mechanical component properties of metal-plastic composites
Authors: Altan L. , Lenz D. , Hasselbusch T. , Förster J.E.
Published: June 2021

Metall-Kunststoff-Verbunde (MKV) sind eine innovative Werkstoffklasse, mit der insbesondere im Bereich des Kraft- und Schienenfahrzeugbaus eine signifikante Gewichtseinsparung erzielt werden kann. Das Scherschneiden als trennendes Fertigungsverfahren erlaubt eine hohe Ausbringungsrate bei geringen bauteilbezogenen Kosten. In diesem Beitrag wird der Einfluss der durch Scherschneiden erzeugten Schnittflächen von MKV auf eine nachfolgende Bauteilbeanspruchung vorgestellt.

 

Metal-plastic composites (MKV) are an innovative class of materials by means of which a significant weight saving can be achieved, in particular in the area of power and rail vehicle construction. Shear cutting as a separating manufacturing process enables a high output rate with low component-related costs. This article presents the influence of cutting edges produced by shear cutting of MKV on a subsequent component stress.
Funktionsorientierte Inline-Messtechnik von Faserverbunden/Function-oriented measurement technology of fibre composites – Integration of measurement results in FE simulations for functional evaluation of produced components
Authors: Bretz L. , Häfner B. , Lanza G.
Published: June 2021

Hybride faserverstärkte Kunststoffe kombinieren die Vorteile ihrer unterschiedlichen Fasertypen und -materialien. Während des teuren Herstellungsprozesses kann es zu Fertigungsabweichungen kommen, deren Auswirkung auf die Bauteilfunktionalität unbekannt ist. Die Integration von Inline-Messtechnik zur quantitativen Erfassung der Abweichungen sowie die simulative Bewertung der Messergebnisse auf Funktionsebene während des Produktionsprozesses können den Ausschuss reduzieren und Kosten senken.

 

Hybrid fiber-reinforced plastics combine the advantages of their different fiber types and materials. During the expensive manufacturing process, production deviations with unknown influence on the part‘s performance may occur. The integration of inline measurement technology for quantitative measurement of the deviations and simulative evaluation of the measurement results at the functional level during the production process can reduce scrap and costs.
Klassifizierung von Schmiedeteilen mittels KNN/AI enables automated recognition and classification of geometrically complex forged parts
Authors: Hedicke-Claus Y. , Langner J. , Stonis M. , Behrens B.-A.
Published: June 2021

Im Beitrag wird eine Methode auf Basis Künstlicher Neuronaler Netze vorgestellt, die es erlaubt, schmiedetechnisch hergestellte Bauteile automatisiert zur Einordnung in Formenklassen zu klassifizieren. Dadurch ist es möglich, direkt aus der CAD-Datei des Schmiedeteils eine Formenklasse und für die Auslegung des Prozesses relevante Charakteristika zu ermitteln, die in einem übergeordneten Ziel dazu genutzt werden, eine automatisierte Stadienplanung durchzuführen.

 

This paper presents a method for the automated classification of forged parts for classification into the Spies order of shapes by artificial neural networks. The aim is to develop a recognition program within the framework of automated forging sequence planning, which can directly identify a shape class from the CAD file of the forged part and characteristics of the forged part relevant for the design of the process.
CVD-Diamantwerkzeuge mit SiC-Zwischenschicht/CVD-Diamond coated tools with SiC-interlayer
Authors: Uhlmann E. , Bath E. , Gäbler J. , Höfer M.
Published: June 2021

Der Cobalt-(Co)-Anteil in Hartmetallen diffundiert während des Diamantbeschichtungsprozesses in die Diamantschicht und mindert deren Haftfähigkeit. Siliciumcarbid-(SiC)-Zwischenschichten können als Diffusionsbarriere für Cobalt dienen und die konventionelle Ätzvorbehandlung der Substrate ersetzen. Im Rahmen einer Forschungsarbeit werden Beschichtungsprozesse mit SiC-Zwischenschicht entwickelt, diese Schichtsysteme auf verschiedene Substrate aufgebracht und durch Zerspanungsuntersuchungen bewertet.

 

The cobalt (Co) content in cemented carbide tools diffuses into the diamond layer during the coating process and reduces its adhesive strength. Siliciumcarbid-(SiC)-interlayers can serve as a diffusion barrier for cobalt and replace the conventional etching pre-treatment of blanks. In a research project different coating processes with SiC-interlayer are developed, the coating systems are applied to different substrates and evaluated in cutting experiments.
Veränderung der Industrielogik im Maschinenbau – Teil 1/Change of industrial logic in mechanical engineering sector – Part 1. Competitive value propositions offered by Business Ecosystems
Authors: Geitner R. , Schöllhammer O. , Bauernhansl T.
Published: June 2021

Die Digitalisierung und der Wandel der Kundenbedürfnisse verändern das Nutzerverhalten sowie das Nutzenverständnis der Kunden und erfordern neue Wertangebote (Produkte und Dienstleistungen), auch im B2B-Bereich. Deshalb werden bisher getrennte oder vollständig neue Wertangebote zunehmend in gemeinsamen Geschäftsmodellen von einer Gruppe interagierender Akteure innerhalb von sogenannten Business Ecosystems gebündelt. Die Relevanz dieses Sachverhalts und die einhergehende Veränderung der Kooperationsart und Interaktionsintensität zwischen den Unternehmen (Industrielogik) wurde in einer Studie untersucht, bei der 16 Maschinenbauunternehmen teilnahmen. In diesem Beitrag werden die Ausgangssituation der Branche, der Stand der Forschung und die Zielsetzung der Studie beschrieben. In einem zweiten Teil, der in einer späteren wt Werkstattstechnik online-Ausgabe veröffentlicht wird, werden die wesentlichen Erkenntnisse der Studie diskutiert und ein zusammenfassender Ausblick gegeben.

 

Digitization and changes in customer needs affect both user behaviour and understanding and require new value propositions (products and services), also in the B2B sector. For this reason, previously separate or completely new value propositions are increasingly bundled in common business models by a group of interacting actors within so-called business ecosystems. The relevance of this issue and the associated change in the type of cooperation and interaction intensity between companies (industry logic) was investigated in a study with 16 mechanical engineering companies. This article describes the initial situation of the industry, the state of research and the objectives of the study. In a separate second part that is being published in a later issue of wt online the main findings of the study are discussed and a summarizing outlook is given.
Prozess-Maschine-Interaktion des Verzahnungshonens/Process-machine-interaction for gear honing
Authors: Brecher Christian , Bergs Thomas , Kiesewetter-Marko Caroline , Schrank Maximilian , Neus Stephan , Brimmers Jens
Published: June 2021

Für die Endbearbeitung von Zahnrädern wird unter anderem das Verzahnungshonen eingesetzt. Die theoretisch erreichbare Maschinenleistung kann aufgrund auftretender Schwingungen eingeschränkt sein. In einem aktuellen Forschungsprojekt zur Abbildung der Prozess-Maschine-Interaktion beim Verzahnungshonen werden die Eigenschaften der Maschine und die Prozesskräfte berücksichtigt. In diesem Beitrag wird ein gekoppeltes Prozess-Maschine-Modell für das Verzahnungshonen vorgestellt.

 

One of the processes used for finishing gears is gear honing. The theoretically achievable machine performance can be limited due to occurring vibrations. A current research project for modelling the process-machine interaction in gear honing considers the characteristics of the machine and the process forces. This article presents a coupled process-machine model for gear honing.
Ermitteln von Lagefehlern bei Einlippenbohrern/Determination of position errors in single-lip drills
Authors: Schweigart Maximilian , Möhring Hans-Christian
Published: June 2021

Dieser Beitrag stellt eine berührungslose Messmethode zur Feststellung von Lagefehlern bei Einlippenbohrern vor, die auf der Verwendung eines Laser-Profilsensors basiert. Durch die Messung von Verlagerungen an mehreren Positionen entlang des langsam rotierenden Werkzeugschafts kann die Lage des Werkzeugs in Polarkoordinaten abgebildet werden. Das System bietet die Möglichkeit sowohl herstellungsbedingte Fehler als auch durch Bearbeitungskräfte und -momente verursachte Formänderungen des Werkzeugs nach verschiedenen Schnittwegen feststellen zu können.

 

This article introduces a non-contact measuring method, based on the use of a laser profile sensor to determine position errors in single-lip drills. By measuring displacements at several positions along the tool shaft with the machine spindle rotating slowly, the actual position of the tool can be mapped in polar coordinates. The system thus offers the potential to identify manufacturing-related errors as well as changes in the shape of the tool caused by machining forces and torques after different cutting paths.
ISSUES OF SPIRITUAL EDUCATION IN PRESCHOOL EDUCATION
Authors:   Lecturer, Department Of Preschool Education, Chirchik State Pedagogical Institute, Tashkent Region, Uzbekistan, Djumaniyazovna Maryambibi Abdullayeva
Published: June 2021

This article will focus on the necessary aspects of the coverage of preschool educational institutions for children aged 2 to 6-7 years, the most important indicator of which is the characteristic of the effectiveness of preschool education. If a child goes to school without preschool education, his educational activities in primary classes will not be effective enough. That is, educational adaptation-the adaptation of the child proceeds poorly, his ability to enter into social relations, communication, mental activity is poorly manifested. In most cases, the child has a state of physical and psychological unpreparedness. The article considers the motivation for learning, the idea that a child who has not formed the first learning skills, whose mental processes are underdeveloped, lags behind in mastering.
HISTORY OF COMPARATIVE DIALECT STUDIES
Authors:   Teacher, Independent Applicant, Russian Language At The Denau Institute Of Entrepreneurship And Pedagogy, Uzbekistan, Musurmankulova Madina Nosirovna , Boymirzayev Djamshid Berdimurotovich ,   Student, Denau Institute Of Entrepreneurship And Pedagogy, Uzbekistan, Norbadalov Djahongir Musulmonovich ,   Student, Denau Institute Of Entrepreneurship And Pedagogy, Uzbekistan
Published: June 2021

This article discusses the dialect system of the Russian and Uzbek languages in a comparative aspect. Studying the dialect system of the Russian and Uzbek languages in a comparative aspect makes it possible to create a comparative dialectological competence. This article is devoted to the creation of dialectological competence at the comparative level of different languages. In long-distance areas dialects, dialect systems and folklore still exist. Improving the system of comparative dialect competence of the Russian and Uzbek languages at present can give a methodical direction to students of the national group. A competent approach to the study of the dialect system develops the knowledge of future Russian language teachers in national schools. Dialect words in both the Uzbek language and the Russian language are considered in a semantic aspect.
“O avesso do mesmo lugar”
Authors: Duarte Tatiane dos Santos
Published: June 2021

Contextos coloniais, como é o caso do Brasil, têm sido marcados por uma produção epistêmica que descoloriu as diversidades étnico-raciais dos livros didáticos, dos costu­mes, das leis e do conhecimento científico, contribuindo para um falseamento da história, da nação e de seus sujeitos. Em decorrência disto, muitos Brasis seguem sendo tratados de­sigualmente validados por um racismo estrutural, constante­mente mascarado e posto como de ações individuais, apesar da falta de políticas públicas efetivas para as populações negras e seus extermínios cotidianos pelo próprio Estado. Para refletir sobre esse imenso passado que se faz presente, trago algumas notas, a partir do caso dos Comitês da Diversidade Religiosa, para afirmar que a sociedade civil organizada tem conseguido ao menos pautar sobre os racismos religiosos, seja no espaço público, seja no âmbito do Estado. Embora sejam ainda pe­quenos avanços diante de tanto “sangue retinto pisado atrás do herói emoldurado”, entendo-os como parte necessária da luta contra os racismos religiosos, especialmente em contextos políticos de esvaziamento da agenda dos direitos humanos e avanços dos fundamentalismos religiosos.
Mixoma e Infarto agudo de miocardio: ¿Hallazgo incidental o agente causal?
Authors: Spampinato Emiliano Gustavo , Satulovsky Leandro , Godoy- Zammarrelli Luis Guillermo , Lanfranco Cristina Margarita , Plastino María Laura
Published: June 2021

Presentamos el caso de una paciente con síndrome coronario agudo con elevación del segmento ST tratada con fibrinolíticos y derivada para angioplastia de rescate. En el ecocardiograma transtorácico control (ETT), luego de la cinecoronariografía, se evidencia masa adherida al septum interauricular, sospechándose mixoma (MX) con diagnóstico diferencial de trombo en tránsito, por lo que se realiza ecocardiograma transesofágico (ETE), donde se visualiza la masa implantada en el septum interauricular con trombo adherido. El diagnóstico de mixoma se confirmó posteriormente durante la resección quirúrgica y anatomía patológica.
Exploración sonográfica del aneurisma aórtico abdominal: lo clásico y lo novedoso
Authors: Aguilar Elibeth , Restrepo Patricia , Sánchez Ennio
Published: June 2021

Se describen consejos para la evaluación del aneurisma de aorta abdominal y una demostración de la utilidad de la inteligencia artifical
DRIVING RURAL YOUNG FORCE TOWARDS HIGHER EDUCATION
Authors: Undale Padmavati
Published: June 2021

The present research paper is based on the study of higher education and rural youth of India. A survey conducted in the villages in Haveli and Velha Tahasils of Pune district. 200 responses through questionnaire were collected. The objectives of the study are to examine the academic qualification of the respondents, to investigate the problems in getting higher education and to suggest some remedies to direct rural youth towards higher education. It has been observed in this study that there is a need to create awareness about the importance of higher education among the rural youth to increase their engagement in it. It is essential to take some measures such as conducting awareness programs, providing easy access to higher education, redesigning the curriculum of higher education with major focus on employability skill development.
ORGANIZATION OF BREEDING AND BREEDING WORK IN BREEDING-GENETIC AND BREEDING-HYBRID CENTERS WHEN USING THE METHOD OF HYBRIDIZATION IN PIG-BREEDING
Authors:   All-Russian Scientific Research Institute of Breeding, TYAPUGIN S.E. , NOVIKOV A.A. ,   All-Russian Scientific Research Institute of Breeding, SUSLINA E.N. ,   All-Russian Scientific Research Institute of Breeding, SHIСHKIN D.G. ,   All-Russian Scientific Research Institute of Breeding, DUNINA M.G. ,   All-Russian Scientific Research Institute of Breeding, BASHMAKOVA N.V. ,   All-Russian Scientific Research Institute of Breeding
Published: June 2021

The analysis of the functional responsibilities of breeding-genetic and breeding-hybrid centers defined by the requirements for them by the normative-legislative acts of April 16, 2013 №183 and February 16, 2016 №56 is carried out. Shortcomings in the definitions are revealed. The most effective way of import substitution in the system of hybridization of domestic nuclei ‒ breeding-genetic and breeding-hybrid centers is shown. The most effective technology of breeding work in the Russian breeding-genetic and breeding-hybrid centers is proposed.
Percepciones acerca de la eficacia o pérdida de aprendizajes en modalidad a distancia aplicado a maestrantes sistema SEP.
Authors: Ríos Leticia
Published: June 2021

A partir de una muestra aleatoria de maestrantes de las maestrías en formación docente y administración pertenecientes a la comunidad universitaria del Colegio Oparin, se analizan los resultados de percepción sobre la dicotomía eficacia o pérdida de aprendizajes en los rubros de adquisición, implementación y evaluación de conocimientos y su impacto en la continuidad del modelo educativo en línea con el propósito de cuidar del bienestar mental, social, de salud y el fomento de valores y actitudes investigativas en posgrado.
Nostalji Eğilimi & Benliğin Ayrımlaşması
Authors: ÇERÇİ Merve
Published: June 2021

Günümüz pazarında birbirine çok benzeyen ürünler ile tüketicilerin zihninde ayrışmak, tercih sebebi haline gelmek, bu tercih edilme halini sürdürüp bir bağ kurabilmek markalar için oldukça önemlidir. Markaların tüketicileri ile kurdukları bağ tüketicilerin geçmişleri ile ilintili ise bu nostaljik bir bağ olarak adlandırılmaktadır. Geçmiş ve geçmişe ait yaşantılar ise kişinin benliğinin oluşumunda oldukça belirleyici olabilmektedir. Bu çalışmanın temel amacı nostalji eğilimleri yüksek ve düşük tüketicileri belirlenmesi ve ardından 2 farklı nostalji eğiliminde olan bu tüketicilerin, benlik pozisyonları (duygusal tepkisellik, “ben” pozisyonu, duygusal kopma ve başkalarına bağımlılık) açısından istatiksel olarak farklılaşıp farklılaşmadığının tespit edilmesidir. Bu çalışmada veriler çevrimiçi olarak toplanmış ve kolayda örnekleme yöntemi kullanılmıştır. Veri toplama aşaması sonucunda, toplamda 567 anket elde edilmiştir. Anketler incelenerek hatalı, eksik ya da tutarlı olmayanları ayıklandıktan sonra kullanılabilir anket sayısı 561 olmuştur. Araştırmanın sonucunda ise; benliğin tüm alt pozisyonlarında, yüksek nostalji eğiliminin ortalaması, düşük nostalji eğilimin ortalamasından istatistiksel olarak anlamlı (p<0.001) bir biçimde yüksek bulunmuştur.
Innovation through the prism of companies using direct marketing. An empirical example from Bulgaria
Authors: Mihaylova Mihaela
Published: June 2021

The current article presents empirical results on the frequency and type of innovations applied by companies in Bulgaria that are using direct marketing. The research is provoked by the dynamic and changing nature of direct marketing. As one of the main characteristics of direct marketing is the absence of intermediaries, the companies should constantly develop their knowledge and competences so they can improve their contact and communication with their customers in order to apply correctly and profitably the three approached associated with direct marketing. They are: the personalization in dealing with customers, the establishment of long-term relationships and the generation of customer’s loyalty, and they happen through different media. An appropriate application of these approaches requires collection, record and analysis of information which is being more and more executed as an automated process. The different and new types of media, in turn, require methods and understanding that further develop or eliminate existing practices, beliefs, and technologies. In this context, a theoretical analysis of innovations is being first conducted. After having a structured division of innovations by their types a brief questionnaire is being developed. As a result, the report summarizes the intersections of the theory with the established practice in 97 companies in Bulgaria.
Marketing competitiveness of hotel and restaurant enterprise: theoretical approach and methods of definition
Authors: Tsviliy Sergiy , Gurova Darya , Kuklina Tetiana
Published: June 2021

The article considers topical issues of marketing competitiveness of hotel and restaurant business enterprises. The product marketing complex and the service marketing complex have been modernized by including the "period" element in the list of their components. The list of marketing functions of the manufacturer of a complex hotel and restaurant product has been supplemented with the function of implementing the time policy. The stages of the product life cycle are divided according to the principles of achieving effective interaction between producer and consumer based on cost structuring. The model of a complex hotel and restaurant product is presented. The principles of using a comprehensive approach to identifying different types of services in the process of integration in the direction of "producer-consumer" are formulated. An algorithm of effective actions of a hotel and restaurant enterprise to develop a marketing strategy to increase the level of competitiveness is proposed. The method of marketing assessment of the level of competitiveness of the hotel and restaurant enterprise on the basis of substantiation of quantitative criteria is developed. It is concluded that the role of digital services in the growth of a certain level of marketing competitiveness of the hotel and restaurant enterprise is growing rapidly. The priority directions for effective marketing management of the level of competitiveness of the hotel and restaurant enterprise are determined. The types of effects from the implementation of the results of the study in the practice of hotel and restaurant business are identified and grouped.
Marketing analysis of information and communication technologies as a factor of compliance function and business growth
Authors: Dronova Tetyana , Horiashchenko Yuliia
Published: June 2021

The purpose of the study is to visualize the results of marketing analysis of the current state and prospects of ICT business. The impact of the use of technology on the activities of enterprises is assessed. The study used the method of SWOT-analysis to assess the internal and external environment of the industry. PEST analysis to study the external environment that may affect the industry. Trend forecasting method for calculating the number of enterprises that will use ICT. ABC analysis to determine the most promising services for specialized educational institutions. The analysis revealed weaknesses (insufficient number of marketing specialists, lack of domestic technology equipment of the required class of quality and productivity) and threats (unpredictable course and consequences of Covid-19, the tendency to reduce scientists and the share of enterprises implementing innovations) in the field of ICT and enterprises. In the activities of the computer academy «STEP» there is a group of services that bring the most profit. It is investigated that «STEP» has significant advantages over competitors. The proposed results of the study can be used in the further working of enterprises. In particular, the academy to promote its services in the education market focuses more on the site, site service and mobile application «Mystat», the social network Facebook. These communication channels are the best channel of connection between the educational establishment and service users. The use of information and communication technologies by enterprises allows them to work more productively in their field and communicate better with potential consumers.
Financial system and growth and economic development
Authors: Hala Małgorzata
Published: June 2021

The aim of the article is to present the role of the financial system in economic growth and development. The first part presents the traditional understanding of the relationship between the economic system and economic growth. The second part presents the experience of financial crises and their impact on the conversation on the mutual relations between the financial sector and the real sector. The third part shows the role of the state in the financial system. The article describes the arrangement of interrelated financial institutions, financial markets and elements of the financial system infrastructure.  It shows what part of the economic system the financial system is, and whether it enables the provision of services allowing the circulation of purchasing power throughout the economy. The article presents the important role of the financial system, the role related to the transfer of capital from entities with savings to entities that need capital for investments. It shows the financial system as a set of logically related organizational forms, legal acts, financial institutions and other elements enabling entities to establish financial relations in the real sector and the financial sector, and this system forms the basis of activity for entities using money, enabling the conclusion of various economic transactions, in which money performs various functions. The article also presents the concept of a financial crisis as a situation in which there are rapid changes in the financial market, usually associated with insufficient liquidity or insolvency of banks or financial institutions, and as a result, a decrease in production or its deepening. The article also includes issues related to the impact of public authorities (state and local authorities) on the financial system in the economy.