Metal member quality improving method by spot welding
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United States of America Patent
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Feb 27, 1996
Grant Date -
N/A
app pub date -
Aug 29, 1994
filing date -
Aug 30, 1993
priority date (Note) -
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Abstract
By applying spot welding along a crack which has occurred in an austenitic stainless steel structure without use of welding material so that spot welds are connected, melting and solidifying of the crack can be achieved, thereby to provide a metal structure which is rich with delta ferrite of the austenitic stainless steel structure or prevent propagation of the crack by enclosing it into the interior of the austenitic stainless steel structure.
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