Research on narrow gap welding process and its application on cylinder barrel

This article mainly introduces the breakthrough of narrow gap MAG welding system in solving the problem of groove welding of thick walled pipe fittings, It can control the groove width within 12mm, save welding materials, and control welding quality. At the same time, it can optimize the grain structure of the weld seam,improve the strength of the weld metal make the seam beautiful, and improve the quality of the quality of the weld seam.