Stainless steels are widely used in pharmaceutical, chemical and nuclear industry, where very high product quality requirements and standards apply. Due to the required high quality of welds, short production times and repeatability of the results, welding processes are carried out automatically. Theoretical part of the thesis deals extensively with the field of arc welding, with an emphasis on TIG and MIG welding processes. The research part examines influencing parameters in welding thick-walled stainless pipes. As part of the experiment, automated welding of root and filler welds was performed. Experiment was conducted on thick-walled pipes using a robot. By changing the welding parameters, we gradually approached quality welds. We have found that with properly defined parameters we can obtain quality welds and fully automate the welding process.
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