LASER BRAZING METHOD AND PRODUCTION METHOD FOR LAP JOINT MEMBER
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United States of America
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Jan 23, 2020
app pub date -
Feb 21, 2018
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Feb 21, 2018
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Abstract
The present invention provides a method for laser brazing an Al alloy to a steel sheet so as to produce a lap joint member that excels in bonding strength with respect to the Al alloy. The laser brazing method includes a brazing step of forming a brazed part (9) for bonding an Al alloy (3) to a hot dip Zn-based alloy coated steel sheet (1) in which a coating layer (2) contains 1.0 to 22.0% by mass of Al and a coating weight per surface is 15 to 250 g/m2.
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