Electric heating – Metal heating – For bonding with pressure
Patent
1997-03-20
2000-08-22
Pelham, Joseph
Electric heating
Metal heating
For bonding with pressure
219 94, 2191171, B23K 1111, B23K 1116
Patent
active
061075957
ABSTRACT:
Two steel members are resistance welded using a filler therebetween in the form of either an insert or a metallized layer on the inner surface of one steel member. The steel members have respective compositions at least one of which comprises at least one alloying element having a concentration which contributes substantially to solidification cracking extensive enough to produce an unacceptable weld fracture. The filler has a composition which, during welding, melts and mixes with molten metal from the steel members, at the welding location, and dilutes the concentration there of one or more of the alloying elements which contribute substantially to solidification cracking. This reduces substantially the contribution, to solidification cracking, of each alloying element which has been so diluted. The cumulative dilution of these alloying elements is sufficient to produce an acceptable weld fracture.
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Inland Steel Company
Pelham Joseph
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