## 4 Research Results
### Main Research  
Among those manufacturing enterprises to declare themselves users of additive technologies, 29 enterprises from the automotive industry indicated the use of the FDM and EBM methods, while 1 enterprise indicated the use of FDM with 1 company, from the metal industry, indicating the use of EBM technology (Table 1). A total of 78 companies indicated \"other\" technologies, of which 23 were from the automotive industry and 55 were from the metal industry. Welding was indicated by 39 enterprises, while for those companies using welding technology, 29 companies indicated using Metal Inert Gas (MIG), Metal Active Gas (MAG), Tungsten Inert Gas (TIG)technology. Material processing was indicated by 18 companies, of which 4 indicated machining with CNC machines. Other companies indicated methods such as aluminium casting, metallisation, plasma-burning, laser cutting, joining sheets, carburising, etc. Basic research has shown that AM technologies are used in 44% of manufacturing companies in the metal and automotive industries. It is interesting that the number of those respondents, classifying the welding method as the AM method, came to about 15%. It is worth noting that over 11% of respondents, in the automotive industry, declared the use of two AM technologies, namely: FDM and EBM. Subsequently, the dimensions of the Additive Manufacturing Technology Use were then determined; these are indicated in Table 1:  
* Automotive industry (52 companies in total): (1) Production processing of machinery and equipment parts made of plastic and metal, including high-precision mechanical parts and components--27 marked answers, (2) Production process of functional prototypes and co-operating mechanisms--29 marked answers, (3) Production process of models used in strength tests, tests and modelling--no company marked an answer. Four companies simultaneously indicated the production of machinery and equipment parts and the production of prototypes. One company gave the answer \"other\" indicating that it uses AM technology for the production of machinery and equipment parts and for the provision of services. * Metal industry (57 companies in total): (1) Prototype and model production process--4 marked answers, (2) Production process of injection moulds, foundry moulds, highly precise metal constructions and other elements with a complex geometry or requiring high mechanical properties, the production of which would often not be possible by means of foundry technologies--54 marked answers, (3) Process of repair and regeneration of complex damaged metal parts--3 marked answers. Two enterprises, marking their answers \"other\", indicated that they used AM for the provision of services (1 company) and for machine construction (1 company). Three companies marking their answer \"the injection mould production process\" also marked \"prototyping\", whereas three companies that indicated the process of manufacturing injection moulds also indicated protection and regeneration (2 companies) and the production of semi-finished products (1 company). A total of 72 enterprises declared their willingness to adopt additive technologies, including 3 companies were interested in FDM technology, while 2 interested companies also marked DMLS; 2 companies in LOM technology, with 1 company also indicating DMLS; 5 companies in DLP technology, including 5 companies also marked DMLS; 1 company in Polyjet technology, with DMLS technologyalso indicated; 20 companies in DMLS technology, 3 companies also indicated SLS, 2 companies also indicated SLA, 2 companies also indicated EBM; 3 companies in SLS technology; 2 companies in SLA technology; 2 companies in EBM technology and 52 companies marked the answer \"other\" (Figure 2). Respondents who ticked \"other\" indicated, among others, laser technologies (12), robotic technologies (4), powder technologies (1), hardening technologies (4), welding (1), production/application of layers of material (3) bonding of materials (2), regeneration of machine elements (1) (Figure 3).