Forestry is characterized by a diversity of natural conditions, which need to be adapted not only to the selection and application of technological processes, but also to the materials used in the construction of individual parts of the equipment. The article deals with the possibility of replacing steel elements with aluminium ones for selected parts of the adapter frame designed for liquidation of forest fires. The aim is to achieve a gradual reduction in its total weight. The aluminium sheet AlSiMgMn EN AW-6082 was selected a replacement for the steel parts. The filler material was solid wire AlMg5Cr. Welding was performed by the MIG method. The selected welding parameters should guarantee the creation of a quality joint that can replace steel weld joints, while respecting the demands placed on them. Weld joints were analysed by macroscopic analysis, measurement of hardness by HV1 and SEM analysis of welded joint with EDX analysis. The results of the laboratory experiment show that by the chosen welding procedure with given parameters, quality welded joints were achieved. After further analyses, these weld joints can be recommended as a substitute for the previously used weld joints of steel structures.

Cu/ZrB2 and CuCr1Zr/ZrB2 composites were prepared by gas pressure infiltration technology. The ZrB2 powder was used as reinforcement. No interfacial reaction took place for Cu, or CuCr1Zr matrix as confirmed by transmission electron microscopy (TEM). The thermal stability of composites was very good, i.e. without any indication of possible disintegration. Composites exhibit high structural stability when subjected to 5 consecutive heating/cooling cycles to 800 • C. Maximums of relative elongations recorded for particular heating/cooling cycles slightly increased for Cu/ZrB2 composite and slightly decreased for CuCr1Zr/ZrB2 composite. However, the differences are negligible.

The connection of simulation models with virtual reality (VR) technology is of great importance in implementing Industry 4.0 in industrial practice. The article deals with the use of virtual reality in discrete event simulation (DES) using the Tecnomatix Plant Simulation software to visualize, analyze and optimize the modelled production–assembly process. The importance of virtual reality is evident in the academic sphere in connection with interactive teaching and its use for industrial practice. The article presents a case study focused on creating a virtual environment and optimizing the production–assembly process in the TX Plant Simulation software environment. During the mentioned study, the analysis of production–assembly flows, the processing of input data into the simulation model, the creation of 3D elements for the needs of virtualization—which are not part of the TX Plant Simulation software library—and the visualization that simulates the real environment based on computational algorithms were carried out. Virtualization was solved using the Oculus Rift S Headset. The output is a generally applicable procedure for modelling and testing a virtual model with its verification on a case study.

The conformity assessment of utility meters is the process by which compliance of measuring instruments with essential requirements is determined. The uncertainties associated with accuracy measurements during testing shall be evaluated and accounted for when making decisions about conformity with the specifications. This paper describes evaluation methods of measurement results in utility meters testing applicable for conformity assessment and for testing laboratories.

Mnoho podnikov rieši oblasť rozmiestnenia a umiestnenia výroby. Príspevok je zameraný na činnosť výrobnej spoločnosti, ktorá sa rozhodla vybudovať nové výrobné priestory. V týchto priestoroch chce zjednotiť výrobu, ktorá bola doposiaľ rozdelená na dve samostatné funkčné jednotky. Ide o strojársku spoločnosť pôsobiacu v kusovej a malosériovej výrobe. Umiestnenie strojov je preto potrebné starostlivo zvážiť a výrobu sa snažiť urobiť čo najviac plynulou, ako pre zákazky malého aj väčšieho objemu. V príspevku je spracovaný postup jednotlivých činností, ktoré budú zahŕňať realizáciu myšlienky výstavby novej výrobnej haly od jej začiatku až po zahájenie výroby. V stručnosti popisuje aj prostriedky ktoré boli využité pri projektovaní tejto haly.