Resistance welding method of fine-grain metal material

Application Number: 00110335
Application Date: 2000.04.19
Publication Number: 1318450
Publication Date: 2001.10.24
Priority Information:
International: B23K11/16
Applicant(s) Name: Inst. of Metals, Chinese Academy of Sciences
Inventor(s) Name: Zhou Yizhou;Guo Jingdong;He Guanhu
Patent Agency Code: 21002
Patent Agent: zhang chen
Abstract The resistance welding method features the pulse current with discharge period of 50-500 mu s, maximum peak current density of (1-20)x105 A/sq cm, and single pulse duration of 500-5000 mu s. The present invention is superior in that it may be used to weld metal material with small crystal grain size and incapagble of being welded through conventional welding method.