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公开(公告)号:US3578511A
公开(公告)日:1971-05-11
申请号:US3578511D
申请日:1968-12-13
Applicant: IBM
Inventor: MEHL DANIEL L , WILSON DELBERT T , YOUNG RICHARD J
IPC: B21D26/055 , B21J5/00 , B21J5/02 , C22F1/16
CPC classification number: B21D26/055 , B21J5/00 , B21J5/02
Abstract: THE SUPERPLASTIC EUTECTOID ALLOY OF ZINC AND ALUMINUM IS DEFORMED IN A DIE HAVING A TEMPERATURE SUBSTANTIALLY IN EXCESS OF THE CRITICAL TEMPERATURE LIMIT FOR THE ALLOY WITHOUT DETERMENTAL EFFECT. AFTER FORMING, THE TEMPERATURE OF THE RESULTING PART EXCEEDS THE CRITICAL LIMIT AND TO THUS ENABLE THE PART TO BE HANDLED WITHOUT DISTORTION. IN ADDITION, THE PART TEMPERATURE AFTER FORMING IS SUFFICIENTLY HIGH TO PERMIT IMMEDIATE HEAT TREATMENT FOR ROOM TEMPERATURE STRUCTURAL PROPERTY ENHANCEMENT AS PART OF THE FORMING CYCLE SIMPLY BY CONTROLLING THE COOLING RATE OF THE PART.
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公开(公告)号:US3537171A
公开(公告)日:1970-11-03
申请号:US3537171D
申请日:1968-07-15
Applicant: IBM
Inventor: WILSON DELBERT T , YOUNG RICHARD J
IPC: B21D26/055 , B23K20/02 , B23K21/00
CPC classification number: B21D26/055 , B23K20/02
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