The presented article describes the effects of laser micro texture of the surface of construction materials used in civil aviation, aeronautics and the automotive industry. For this purpose, a laser with ultrashort pulses generating UV radiation was used. The authors presented the possibility of micro machining of INCONEL 718 alloy surfaces. The texture made can be used in many modern industrial applications relevant to the development of technology. One of such applications is the development of surfaces to increase the adhesiveness of bonded joints to other construction materials. The TruMicro 5325c laser used for this purpose allows the material to be processed using a cold ablation process, which allows precise, selective removal of the material without a thermal influence on the adjacent areas of the workpiece.
The article presents the results of laser microtexturing on the surface of structural materials used in aeronautics, civil aviation and the automotive industry. Using the laser with ultrashort pulses and UV radiation, the authors presented the possibility of surface treatment of titanium alloys. The microtexture can be used for many different industrial applications. One of such applications is to increase the surface area in order to increase the adhesive of bonded joints to other structural materials. The UV laser with ultra-short pulses used for this purpose allows micromachining of the material using the cold ablation process, which does not damage the material when it is micromachining. The research carried out by the authors is aimed to verifying how features such as the shape, density and depth of the laser-made microtexture affect to the strength of the constituted adhesive joint for the tested pair of materials.
Plastics are used as a construction material in many branches of industry, in particular in the biomedical industry, mechatronics, electronics, automotive industry and chemical devices. The study presents the results of the tests on the effects of micromachining of elastomeric materials with UV Laser Marker. The analysis of the impact of machining parameters on the performance and the quality of machining was the key point of the study, which allowed to recommend the most favourable machining parameters for materials, such as fluorinated elastomer (FPM) and silicone (MVQ). The authors perceive the prospective application of the developed technology in sealing and microfluidization. The results of the tests on the frictional resistance reduction of a pneumatic actuator with a piston sealing and a textured friction face are presented in the final part of the study.
The paper presents selected results of model and technological experiments of welding iridium-platinum tips to spark plug electrodes. Variants of welding technology included different ways of preparing materials and the use of different Nd: YAG lasers (Rofin BLS 720 and Rofin Integral). The results of technological tests were verified by the metallographic evaluation of joints. Performance tests when powered by biogas were conducted for selected variants of welding.
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