## 4 Research Results
### Main Research
As many as 22 companies answering \"other\" claimed that, currently, they could not, or were not able to determine what technology they would be interested in, while 2 did not provide any justification for using additive technologies. As results from the analysis of the data obtained, companies are interested in implementing laser technology. This is indicated by declarations of intent to implement the laser sintering of metals-DMLS (20 companies) with justification of the respondents who indicated the answer \"other\", pointing to technologies using welding, cutting and laser processing (12 companies). Figure 3: Interest in implementing AM. Answers declared by respondents from the automotive and metal industries. Figure 2: Interest in implementing AM in the manufacturing companies surveyed in the metaland automotive industries. Companies declaring an interest in implementing additive technologies indicated the following factors that could potentially influence their decision (Figure 4):  
* Reduction of production costs--37 marked answers
* Effective use of material--26 marked answers
* Freedom in product design--26 marked answers
* No assembly stage--25 marked answers
* Product personalisation to meet specific customer requirements--25 marked answers
* Quick response to market needs--32 marked answers
* optimisation of product functions--29 marked answers
* Other--39 marked answers, of which 21 focussed on the development of the company, 10 on increasing work efficiency and processes, 4 on reducing employment, 2 on reducing exhaust emissions and waste; 2 companies did not provide justification or indicated insufficient knowledge of this area. Analysis of the responses received, with reference to the restrictions (Figure 5) determining the implementation of AM technology, showed that 21 companies indicated the below par performance of devices which had a lengthy printing time, with 13 indicating the poor quality of the products manufactured, 14 indicating the low strength poor clarity of the printed details, while 51 marked the answer \"other\". The respondents marked the answer \"other\" (Figure 6) and indicated their justifications of the answer, with 23 indicating lack of funds, 9 indicating lack of space, 7 did not see the need, 3 indicated the unstable market situation, 2 companies indicated that they were under-staffed, while 3 were unable to give any reasons. Moreover, 3 companies said, in their self-justification, that they were at the'searching for the right technology' stage or were those companies who intimated that,'so far, no method had been developed that would meet our expectations'. Analysing the results obtained, it was found that the main determinants influencing the decision to implement AM technology, in automotive and metal industry manufacturing companies, was the need to reduce costs and the ability to respond quickly to market needs. The research results are in the line with the current development trend of production companies, whose managers are constantly looking for a production system that will allow the company to adapt it to current market needs [34]. Figure 4: Factors affecting interest in implementing AM in the manufacturing companies surveyed in the metal and automotive industries.