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Because of the unique combination of their properties, nanobainitic steels containing Si are particularly attractive materials for use in gear manufacturing. However, in order to achieve desired results, it is first necessary to obtain a surface of sufficient hardness (i.e. to increase the hardness of the surface layer using surface hardening techniques). One of such techniques is electron beam hardening...
The article discusses tests performed within a state budget-subsidised research project Research into the Development of Joining Techniques for Battery Packs. The subject of research work includes the selection and development of technologies enabling the joining of battery cells and accumulators used in modern electric cars. The works conducted previously involved the performance of tests related...
The welding process is the subject of worldwide tests, primarily related to the effect of process conditions and parameters on the structure, geometry and the strength of joints as well as on the formation of welding stresses and strains (distortions). In spite of numerous test results, the welding process itself continues to be one of the reasons for the formation of distortions. Designers and manufacturers...
Thermal spraying is one of the most common methods enabling the deposition of variously-purposed layers on surfaces of structural elements. However, in certain cases, the process of spraying itself is ineffective in terms of the stability and properties of protective layers. One of the possible solutions making it possible to reduce the porosity and improve the adhesion of surfaced layers involves...
In many cases, the technology enabling the melting of thermally sprayed layers has no alternative. High-performance thermal spraying processes make it possible to obtain densely sprayed layers. However, previous research revealed that sprayed layers are characterised by porosity and numerous material imperfec¬tions. The above-named situation results from the specific manner of layer appli¬cation....
The issue of welding distortions concerns both large welded structures such as bridges, storage tanks and elements of welded building structures as well as small and precise elements. Particularly susceptible to welding distortions are thin-walled structures, in which hard-to-predict welding distortions are responsible for serious technical problems. This paper presents the results concerning the...
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