Projection welding method
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United States of America Patent
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May 28, 1996
Grant Date -
N/A
app pub date -
Apr 6, 1994
filing date -
Apr 12, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A projection welding method which comprises providing in either one of a first member and a second member to be welded a plurality of projections projecting toward the other member, supplying a current between the first and second members to melt the plurality of projections, and welding the first and second members. The plurality of projections are composed of projections having a plurality of kinds with different heights. Furthermore, with reference to the plurality of projections, concave grooves in which a molten product flows are provided.
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