Results
Title

Fabrication of Magnetic Pulse Welding Sheets of Aluminum Alloy and GA Steel Plates Subjected to Film Removal Treatment and Their Welding Property.

Authors

Ryo Kanematsu; Takashi Sakai; Yuki Mizunuma; Ryosuke Yamagata; Keigo Okagawa; Takaomi Itoi

Abstract

The GA steel sheets with various strengths (590, 780, and 980 MPa classes) from which the Zn-Fe film was removed and 6061-T6 sheets were lap joined magnetic pulse welding under the conditions of gap length d of 1.17mm and discharge energy W of 3.0 kJ. Before welding the GA steel sheets, a Zn-Fe film with a width of 5mm was removed by grinding or acid treatment. In the case of acid treatment with dilute sulfuric acid, the film was removed within 3 minutes. On the other hand, when the film was removed by grinding, burrs were formed on the GA steel plate side. With either film removal method, the film was removed and a lap joint between GA steel sheet and 6061-T6 sheet was able to be achieved. This means that the joining position can be selected by magnetic pulse welding. The corrosion resistance of the lap joint sheets was investigated through salt spray test for 120-hours. The results showed that even under conditions where GA steel plates corrode, the weld interface did not corrode and bonding strength remained as well as before the corrosion test.

Subjects

ALUMINUM alloy welding; SALT spray testing; LAP joints; STEEL welding; WELDING

Publication

Materials Transactions, 2024, Vol 65, Issue 12, p1520

ISSN

1345-9678

Publication type

Academic Journal

DOI

10.2320/matertrans.MT-L2024016