PR E S SRELE ASE

Gühring KG
P.O. Box 10024 | 72423 Albstadt, Germany
Contact
Jasmin Herter
T +49 7431 17- 21 320
M +49 172 6580 294
jasmin.herter@guehring.de
www.guehring.com

CONTENT
PR E S SRELE ASE
PRODUCTS & SERVICES
New. Extreme. Powerful.
RT 100 XF Ratio drill

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There is no future without a past
How Gühring positions itself in e-mobility

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The all-new powerful GTC
The RF 100 Speed 5 and 7-fluted cutters

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Process optimisation in a whole new dimension
See more with GTMS (Gühring Tool Management Software)P.9

120 years of manufacturing expertise, innovation and synergy:
These are the pillars of our success that have allowed Gühring,
once a pioneer of drilling solutions, to develop into an industryleading full-service provider. This was made possible by ourown R&D departments in geometry, production and coating,the production of proprietary carbide, as well as grinding
and coating systems. These elements find their way into theperformance of our products, enabling us to continually set
new standards for the industry.
This leading expertise serves as the basis for the new RT 100 XFRatio drill. Exceptional performance and a qualitative advantage.
With unrivalled power and guaranteed outstanding machining
results for your processes.
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New carbide and nanoFire coating
Extremely hard, absolutely unbreakable: the carbide, which has been specially developed for theRT 100 XF, performs a balancing act between hardness and toughness through the unique combinationof tungsten carbide and cobalt. The special structure of this composite cutting material has are-sharpening effect. Major breakages that normally accelerate tool wear no longer occur.
In addition to titanium and nitrogen, the tried-and-tested nanoFire coating system also contains
aluminium and is characterised by a high level of hardness and good thermochemical resistance.
Finishing in particular has been optimised through the holistic approach, meaning that there is an
optimum connection between the newly developed carbide and the tried-and-tested nanoFire coating.
This specially designed pre-treatment and post-treatment smooths the coating and therefore makes
it significantly more robust.

THE BENEFITS TO YOU:COMBINED OPTIMISATION OF ALL TOOL PARAMETERSENABLES OUTSTANDING FEED RATES AND EXCEPTIONALMETAL REMOVAL RATESIN-HOUSE HIGH-END FINISHING FOR MAXIMUMPERFORMANCE UTILISATIONREDUCED CYCLE TIMES FOR DIFFICULT-TO-MACHINE
MATERIALS AND SPECIAL APPLICATIONS IN SERIESPRODUCTION

Outstanding quality as standard: geometry and micro-geometry
The robust relieved cone and the concave main cutting edge make the RT 100 XF an extraordinarily
sturdy tool for use in steel machining and for stainless steels, cast iron, special alloys and hardenedsteels (≤45 HRC). Four guiding chamfers grip extremely early, thus perfecting the concentricity, ensuring
perfect drilling quality, improving straightness and surface finish – and are therefore standard on theRT 100 XF from 5xD upwards. The third and fourth support chamfers ensure excellent running smoothness. The chip flows off faster through the polished flutes – this therefore protects the drilling surface
and also significantly reduces the machining temperature. The micro-geometry in the form of a cuttingedge rounding ensures homogeneous and stable cutting edges. The accurate reproducibility (to thenearest micrometre) is made possible by our manufacturing expertise. Original quality is restored inthe in-house regrinding and re-coating centres.

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THERE IS NO FUTUREWITHOUT A PASTHOW GÜHRING POSITIONS ITSELF IN E-MOBILITY
The automotive industry is changing: alternative drive concepts
such as the electric motor are putting brand new machining tasks
on every supplier‘s agenda. Tool manufacturers have a duty toreliably manufacture e-components. Gühring is already able toprocess all of the aluminium alloy components of an e-vehicle
that require machining. In addition to electric motor housingsand associated gearbox covers, auxiliary units such as battery
trays or electric refrigerant compressors are also machined.

CHALLENGES IN SERIES PRODUCTION
The electric motor housing including gearbox cover is made from aluminium alloys and produced using Gühring
PCD tools. The challenges here are enormous: reliable manufacture of small diameter tolerances of up to IT6
and small geometric tolerances, such as concentricity of up to 40 µm with a reference length of more than
400 mm and with machining on both sides.

IDEAL PARTNER FOR THE PRODUCTION OF
ELECTRIC MOTOR COMPONENTSThe stator bore requires a high level of dimensional accuracy. With a diameter of 235 mm, the appropriate
6-fluted Gühring PCD tool has a tilting moment of 22 Nm and weighs less than 20 kilogrammes. This lightweight
tool is made from aluminium which, as well as reducing the spindle load, guarantees maximum productivity.
In addition to the lightweight design, which enables maximum precision, component cleanliness is an additional
challenge. With the assistance of innovative tool geometries, the chips are evacuated in a defined manner
during milling, roughening and reaming the surface/hole to be machined. The risk of Al chips getting stuck inthe cooling fins is therefore significantly reduced.

View of component
Stator sideBig diameter – light tools• small tilting moment• maximum rigidity with few materials• minimised machine spindle load

Stator bore

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ALL THE COMPONENTS AT A GLANCE
In addition to electric motor housings and the related gearbox covers, auxiliary units such as battery trays toaccommodate the energy storage system and refrigerant compressor, which are used for thermal managementin vehicles, are also machined. Due to their size of up to 2x1 m and their thin walls, battery trays are particularly
susceptible to vibration. This problem is overcome, chiefly during milling, with the aid of geometric features
such as very uneven spacing of the cutting edges and a rigid tool interface created by holders with optimised
interference contours. Having already successfully completed more than 20 battery case projects, Gühring isconsidered a leader in this application. Machining with minimum lubrication also guarantees the long-termsustainability of production.

View of component
Stator sideStator bore

Small diameter tolerances andgeometric tolerances• cost-efficient and precise machining of small diameter

tolerances up to IT6• reliable tool solutions for particularly small geometrictolerances, e.g. concentricity of up to 40 µm with aØ 0.04 A-B

A

Geometric tolerances of e-motor housingreference length of over 400 mm• FEM calculation during tool construction to reduce

Stator boreØ 235 mmweightB400 mm

Motor shaft
gearbox side

CLEAN THERMAL MANAGEMENT THROUGH
OPTIMISED MILLING TOOLS
Thermal management presents another challenge in electric vehicles. In the past, conventional air conditioning
systems have been powered by combustion engines. For electric vehicles, in future electric refrigerant compressors will be used as heat and cold pumps. The refrigerant compressor comprises two coils, the opposing motionof which compresses gas. Small tolerances for the coils ensure that the most efficient compression possible isachieved. For example, the requirements for geometric tolerance are an angularity of 20 µm and a line profile of
8 µm. The smallest surface finish qualities below R z 4 µm combined with thin-walled surfaces of less than 3 mm
and cutting heights of up to 25 mm are typical of this machining task. The solutions are milling tools with minimum cutting pressures. Highly positive rake angles and increased rigidity mean that tolerances are reliably met.

A CLEAR GRASP OF THE COMPLEXITY IN THE FUTURE
Gühring has 40 years of experience in PCD (polycrystalline diamond), which it incorporates in the machining ofelectric motor housings. It also integrates the latest product innovations into e-machining. Preventive measures
aimed at maximising process reliability, such as the FEM calculation during tool construction to reduce weightor rigidity and vibration tests taking account of real operating speeds, are an established part of the routine.
Gühring is dedicated to ensuring that its customers can have all their e-mobility needs met holistically, from asingle source and anywhere in the world. It also acts as a professional partner to the global automotive industry
in the series production of electric drives. Through the strategy of having a wide product range, Gühring is well
prepared for dynamic technological change in automotive drivetrains.

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THE ALL-NEW POWERFUL GTC
THE RF 100 SPEED 5 AND 7-FLUTED CUTTERS
Especially when performing milling operations with very tough materials, it is only possible to increase the cutting speed to a limited extent while taking process reliability
into account. Due to the increased number of teeth of the RF 100 Speed 5-fluted and7-fluted Ratio milling cutter, high metal removal rates can be achieved with stableprocess reliability, even with these difficult-to-machine materials.

RF 100 Speed 5 and 7-fluted cutters
The RF 100 Speed 5-fluted and 7-fluted Ratio milling cutter is now an addition to the Speedfamily and allows for highly dynamic GTC processes with an ae of up to 10 %. In the eventof a restricted machine speed or cutting speeds limited by the material, the increased
number of teeth ensure high feed rates and long services lives. They are particularly suitable fordifficult-to-machine materials in stable conditions.

// high-performance roughing even at high cutting depths// maximum feed rates for large metal removal rates// highly dynamic GTC milling in tough stainless steels,
special alloys and a wide variety of steel and cast iron grades

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RF 100 Speed P and M
The 5 and 7 Speed add to the established RF 100 Speed range with the P and M material specialists. They are suitable for GTC machining at an ae of up to 15 %. Thanks to the high spiral angle of48° with unequal cutting edge distribution for soft, quiet cutting and large flutes, the RF 100 Speed P
and the RF 100 Speed M ensure a low load on the machine and power consumption. The lower number of teeth provide maximum chip space for good chip evacuation. Different versions of the milling
tools are available. The long version has chip breakers in order to break chips into short pieces andtherefore ensures smooth chip evacuation. Large face chip spaces and the improved web thinningenables reliable plunging. The optimised corner protection chamfer and face correction protect thecutting edge corner, as the most delicate part of the tool, from two sides, meaning that the cuttingedge is also able to withstand heavy shear loads. Through this combination, the tool life is significantly
longer.

New milling strategy: roughing with GTC (Gühring Trochoidal Cutting)
GTC roughing is ideal for machining large cutting depths, as the roughing cutter machines the entire
depth of the workpiece with the whole length of the cutting edge. Controlling the cutter path with low
radial feed allows for comparatively gentle edging of the workpiece, as the cutting forces are distributed
evenly over the entire length of the cutting edge. This allows for high processing speeds and long service lives. Gühring Trochoidal Cutting is the first choice for applications with enormous material removal
rates. The components to be machined are usually made of high-strength steels, which place increased
demands on the machining process. In order to achieve appropriate results, higher cutting speeds, higher feed rates per tooth and greater cutting depths are used. The high cutting speeds are achieved withthe help of high revolution frequencies, as long as the milling machine allows for this. By using the entire
length, the load placed on the cutting edges of the milling cutter at the perimeter is significantly less andwear is reduced. The milling process is not new, but it is only on the basis of the performance of today’s
machining centres and geometry adjustments and the wear resistance of milling tools that GTC shows
itself to be an advancement in machining when it comes to enormous metal removal rates. The RF 100
Speed has a corresponding geometry in order to meet the demands of tough, low and high-alloy steels
and difficult-to-machine materials – particularly in state-of-the-art application technologies such as theGTC milling strategy.

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Gühring Tool Management Software

See morewith the GTMS
Process optimisation in a whole new dimensionNew developments and functions of Industry 4.0 are moving into focus. Gühring is taking adecisive step towards the future and creating the optimal basis for future-oriented digitalised
solutions through intelligent networking and the further development of Gühring Tool Management
Software (GTMS). Regardless of whether its a complete or customised application: GTMS can beeasily integrated into all existing structures. With the latest version GTMS_V6, Gühring provides
the perfect tool for cost-efficient creation of all processes for a manufacturing business.
The areas of transparency and data evaluation in particular (for the purposes of ongoinoptimisation) are continuously expanded here.

GMCC machine connection
With the GMCC option, Gühring offers the option of a direct machine connection. It ishereby possible to monitor machine states at all times. Through continuous run time analysis,optimisation potential is quickly revealed. In the event of machine stoppages, stored emergency
plans help to resolve downtimes quickly and efficiently. Through the downtimes analyses,
you have the opportunity to recognise patterns in order to prevent future failures.
The aim is to transform downtimes into productive run times.

Tool lives at a glance
Tool magazine monitoring gives you a continuous overview of the available tools, including thecorresponding remaining service life, and automatically carries out wear recording. In turn, allinformation about the tool magazine assignment can be used for job planning. Users plan more
efficiently – productivity is significantly increased. A shorter reaction time in the event of tool
breakages as well as evaluation of the actual tool lives are additional benefits in order to ensuremachine set-up that is optimised to requirements. Retooling times are shortened or eliminatedentirely. Machines work more productively and optimum utilisation is ensured.

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The benefits to you:
Machine connection, networking and data evaluation
Reduce costs
Identify areas with improvement potential
Perfect your tools and processes
Transparency in real time

The GTMS sees more
With process data monitoring, parameters such as machining times, the active NC program,parts counters, performance data and much more can be monitored, documented andevaluated. Processes are therefore more stable, as causes analysis in the event of malfunctions
can be carried out more quickly. This gain in transparency allows you to react quickly andefficiently to changes. Furthermore, cost drivers in the production process can be identified
quickly and easily. There is therefore transparency when it comes to run times, costs andquantities. For example, through the display of the remaining job time, idle times are reduced.

More than 2,500 projects around the world
More than 15 years of experience with interface development ensures peace of mind and a large
degree of professionalism when it comes to integration into existing IT infrastructures. Gühring
therefore provides solutions and expertise from a single source. Through our practical experiencefrom over 2,500 software projects around the world and continuous further development, we areable to react to the requirements of our customers at any time. This means that Gühring is always
a reliable partner. Now and in the future. In the midst of the era of Industry 4.0, Gühring views
itself as a reliable partner, trailblazer and supporter and, with GTMS, provides a strong instrumentfor digitalising your production.

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Press release for download
including printable photo material
https://owncloud.guehring.de/index.php/s/uXqkvCGZeRvdIZE