## 4 Research Results
### Analysis of the Research Results
\begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Relations** & **Correlation** & **r2** & **t** & **p** \\ \hline production process in the metal industry/reduction of production costs & 0.2665 & 0.0710 & 3.0662 & 0.0027 \\ production process in the automotive industry/reduction of production costs & 0.1887 & 0.0356 & 2.1315 & 0.0350 \\ production process in the metal industry/efficient use of material & 0.1064 & 0.0113 & 0.1865 & 0.2377 \\ production process in the automotive industry/efficient use of material & 0.1550 & 0.0240 & 1.7397 & 0.0844 \\ production process in the metal industry/freedom in product design & 0.0692 & 0.0048 & 0.7696 & 0.4430 \\ production process in the automotive industry/freedom in product design & 0.0913 & 0.0083 & 1.0165 & 0.3114 \\ production process in the metal industry/no assembly stage & 0.0692 & 0.0048 & 0.7696 & 0.4430 \\ production process in the automotive industry/no assembly stage & 0.0913 & 0.0083 & 1.0165 & 0.3114 \\ production process in the metal industry/product personalisation & 0.0692 & 0.0048 & 0.7696 & 0.4430 \\ production process in the automotive industry/product personalisation & 0.0913 & 0.0083 & 1.0165 & 0.3114 \\ production process in the metal industry/quick response to market needs & 0.1544 & 0.0238 & 1.7329 & 0.0856 \\ production process in the automotive industry/quick response to market needs & 0.0929 & 0.0086 & 1.0350 & 0.3027 \\ production process in the metal industry/optimisation of product functions & 0.1000 & 0.0100 & 1.1148 & 0.2671 \\ production process in the automotive industry/optimisation of product functions & 0.1319 & 0.0174 & 1.4752 & 0.1427 \\ production process in the metal industry/development & 0.1483 & 0.0220 & 1.6627 & 0.0989 \\ production process in the automotive industry/development & 0.1148 & 0.0132 & 0.2812 & 0.2025 \\ production process in the metal industry/elimination of human labour & 0.1167 & 0.0136 & 1.3034 & 0.1949 \\ production process in the automotive industry/elimination of human labour & 0.1255 & 0.0157 & 1.4027 & 0.1632 \\ production process in the metal industry/waste reduction/lowering & 0.0175 & 0.0003 & 0.1942 & 0.8464 \\ production process in the automotive industry/reduction of waste/lowering & \(-\)0.0669 & 0.0045 & \(-\)0.7440 & 0.4583 \\ energy consumption & & & & \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Correlation analysis: production process. Figure 10: The structural model. In both the metal and automotive industries, in analysing the relationship between the use of AM technology in a given process and the effects of their implementation, it was shown that there are significant relationships between the production process and the impact on reducing production costs (Table 3). Based on Table 4, significant relationships between the prototyping process and the company's development were indicated. Making prototypes of elements using AM technology along with further research in this area will contribute to making more effective construction and production decisions. Based on the data in Table 5, it was found that enterprises in the automotive industry strive to search for modern solutions, the use of which will reduce the involvement of employees to perform certain services for business partners (Figure 11). This is understandable, since the boards of production companies indicate that in the west of Poland there is still a shortage of suitably qualified employees. This is an area of research that requires further work, in order to define the possible actions that should be taken by research and development units in the west of Poland, to contribute to the strengthening and intensification of their co-operation with manufacturing companies. In this area, further in-depth research is planned regarding the