Electric resistance seam welding method
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United States of America Patent
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Nov 12, 1991
Issued Date -
N/A
app pub date -
Aug 16, 1989
filing date -
Jun 10, 1983
priority date (Note) -
Expired
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Abstract
An electric resistance seam welding method for a hard-to-weld steel sheet is disclosed which prevents the occurrence of flashes. The steel sheet has metal harder than tin and an intermetallic compound as coating layers, the sheet thickness of the steel sheet is 0.5 mm or less and portions of the sheet are overlapped for welding with an overlapping width in a range from 2.0 times to 2.3 times the sheet thickness.
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