Friction welding of 304 austenitic stainless steel tube to tube plate joints using an external tool

Abstract

The present study has been focused on friction welding of AISI 304 austenitic stainless steel tube to tube plate joints using an external tool. Friction welding of tube to tube plate using an external tool (FWTPET) is invented in the year 2006. In the present study FWTPET joints, micro and macro structure, hardness profile have been studied. AISI 304 austenitic stainless steel tube and tube plates are welded by TIG welding process and metallurgical properties such as hardness, micro and macro structure has been compared with the joints of FWTPET process. FWTPET joints have been showed that better metallurgical aspects like fine grains at the interface, heat affected zone (HAZ) and a better hardness profile when compared to TIG welded joints.

Keywords

• fwtpet process
• tig welding
• tube to tube plate welding
• friction welding
• external tool