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Affiliation of Author(s):材料科学与技术学院

Title of Paper:A comparative study between pulsed metal inert gas welding and continuous metal inert gas welding on thin Invar alloy

Journal:Proc Inst Mech Eng Part B J Eng Manuf

Abstract:The pulsed metal inert gas welding and continuous metal inert gas welding with various parameters are implemented on 2-mm-thick Invar36 alloy plates. The pulsed metal inert gas welding and continuous metal inert gas welding with the same filler metal and base metal are compared by considering the morphology, microstructure of weld seam and mechanical properties. It is indicated that the size of weld seam obtained in pulsed welding is significantly different from that in continuous welding. Meanwhile, it reveals that there is a triangle zone at the bottom of weld seam in both types of welding technology for Invar36 alloy. The microstructure in triangle zone of pulsed welding and continuous welding is focused. In addition, the essential difference between pulsed metal inert gas welding and continuous metal inert gas welding is discussed in detail by analyzing the formation mode of the droplet metal at the end of wire. © IMechE 2017.

ISSN No.:0954-4054

Translation or Not:no

Date of Publication:2019-01-01

Co-author:孟瑶,Dongdong Gu,Wang, Huimin

Correspondence Author:Xiaohong Zhan