The intent of this thesis is to determine how the activation coating impacts the TIG copper welding process productivity. The theoretical section of the thesis describes the conventional TIG welding technique and the new A-TIG process, which enables deeper weld penetration. Conventional TIG welding is covered in one chapter. It includes a brief description of the equipment, welding methods, potential errors, etc. The chapter dedicated to the A-TIG process provides a brief overview of the coatings available on the market, the procedure's application, and its advantages and disadvantages. In the experimental section, copper samples are welded using both TIG and A – TIG methods at the University of the North's laboratory. After the welding was completed, the testing of mechanical samples began. After analyzing the experimental results, it was determined that the A-TIG welding procedure can achieve higher welding productivity than conventional TIG welding.