7075 aluminum alloy butt welding was carried out by TIG welding with self-made 7075 wire. The effects of different currents on the microstructure and mechanical properties of the joint before and after heat treatment were studied. Before heat treatment. the strength and elongation of the joint are 274. https://safeersappliancers.shop/product-category/hotpoint-cannon-ch60gciw-white-60cm-gas-twin-cavity-cooker-gas-hob-and-glass-lid/