Microstructure and Mechanical Properties of Aluminum Alloy/High Strength Steel Double Beam Laser Deep Penetration Welded Joint

• Published in: Materials science forum Vol. 944; pp. 448 - 457
• Main Authors: Cui, Li, Xia, Xu, Chen, Hong Xi, He, Ding Yong, Lu, Dong Qi, Chang, Yao Qing
• Format: Journal Article
• Language: English
• Published: Pfaffikon Trans Tech Publications Ltd 01.01.2019
• Subjects: Aluminum alloys; Aluminum base alloys; High strength alloys; High strength steel; High strength steels; Intermetallic compounds; Lap joints; Laser beam welding; Lasers; Mechanical properties; Microhardness; Microstructure; Penetration; Weld metal; Welded joints; Welding parameters; High Strength Steel Dissimilar Alloy; Intermetallic Compound (IMC); Aluminum Alloy; Mechanical Resistance; Laser Deep Penetration Welding; Dual-Laser Beam

A new dual beam laser deep penetration welding technology for lap joint of 1.5 mm thick aluminum alloy and high strength steel was explored in this paper, and the effects of three different beam energy ratios (RS=0.25,0.33,0.5) on weld formation, interface microstructure and mechanical properties we...