Investigation of A5052 Aluminum Alloy to SS400 Steel by MIG Welding Process

Autor: Minh Hue Pham Thi, Khac Thong Nguyen, Shyh-Chour Huang, Quoc Manh Nguyen, Van Thinh Nguyen, Huong Thao Dang Thi, Van Nhat Nguyen
Rok vydání: 2018
Předmět:
Zdroj: Proceedings of the International Conference on Advances in Computational Mechanics 2017 ISBN: 9789811071485
DOI: 10.1007/978-981-10-7149-2_44
Popis: This paper aims to investigate the simulation and experiment of the welding of butt joint 5052 aluminum alloy to SS400 steel by SYSWELD software and metal inert gas (MIG) welding process with AR4043 welding wire. Welding seams were evaluated by mechanical testing and metallurgical analysis, and surface morphology welding seam and other welding defects were investigated. The microstructure of intermetallic layer has been observed using microhardness testing and scanning electron microscopy (SEM). A without intermetallic layer and intermetallic layer joint between welding seam and SS400 steel at fusion area appeared after the welding process. To improve the quality of welds, the best thickness of the intermetallic (IMC) layer was from 3 µm to 7 µm. The fracture tensile inspection results of welding seam achieved at 230 MPa and the fracture occurred at the IMC layer, the average microstructure hardness of IMC layer zone is 346.3 HV and without IMC layer zone is 117.85 HV. The intermetallic layer was at the minimum to improve the quality of welds.
Databáze: OpenAIRE