A method and apparatus for improved percussive arc welding is disclosed. In this technique a test arc of a voltage no greater than the initiating voltage of the percussive arc welding is first applied across the pieces to be welded. The welding cycle is then performed if, and only if, an arc is detected responsive to the impressing of the test voltage.
申请公布号
US4417120(A)
申请公布日期
1983.11.22
申请号
US19810295476
申请日期
1981.08.24
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
LUMBRA, DOUGLAS L.;PHELPS, JR., DOUGLAS W.;SAMUELSEN, SIGVART J.;WARD, WILLIAM C.