Yes When welding the cylinder, the welding surface should be 30-degree groove, and TIG is used for butt welding. People need to use spot welding to locate the barrel body first, and six welding spots can be made every week to ensure the position. Two layers of welds shall be filled with welding wire and exceed the whole butt groove, and the two layers of welds shall be consistent. Welding is one of the main methods of metal processing, and it is a process of connecting two or more separated workpieces into a whole according to a certain form and position.