The laser-beam welding of ferritic stainless steel for the motor vehicle exhaust 409L

Author

Aili Sun ; Jie Liu ; Wenkai Liu

Author_Institution

Handling Equip. Mech. Dept., Acad. of Mil. Transp., Tianjin, China

Volume

8

fYear

2011

fDate

12-14 Aug. 2011

Firstpage

3931

Lastpage

3933

Abstract

Adopts wolfram extremely argon arc welding (TIG) preheating add CO₂ laser welding in pipe production line for 1.5 mm thick 409L ferritic stainless steel welding, and welded pipe welding joint microstructure analysis. The results show that laser welding ferritic stainless steel pipe with joints heat affected zone is narrow, the grain growth degree small, and cold forming good performance advantages, can well satisfy motor vehicle exhaust pipe production factory in subsequent all cold technological requirement.

Keywords

arc welding; cold working; exhaust systems; forming processes; laser beam welding; pipes; stainless steel; vehicles; 409L ferritic stainless steel welding; argon arc welding; carbon dioxide laser welding; cold forming; cold technological requirement; laser-beam welding; motor vehicle exhaust pipe production factory; pipe production line; pipe welding joint microstructure analysis; Heating; Joints; Lasers; Organizations; Steel; Vehicles; Welding; Exhaust pipe; Ferritic stainless steel pipe; laser welding;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic and Mechanical Engineering and Information Technology (EMEIT), 2011 International Conference on

Conference_Location

Harbin, Heilongjiang

Print_ISBN

978-1-61284-087-1

Type

conf

DOI

10.1109/EMEIT.2011.6023918

Filename

6023918