公开(公告)号：US3420717A

公开(公告)日：1969-01-07

申请号：US3420717D

申请日：1966-03-28

Applicant: IBM

Inventor： FIELDS DAVIS S JR ,  MEHL DANIEL L

IPC: C21D1/00 ,  B21J1/06 ,  C22C18/04 ,  C22F1/00 ,  C22F1/16 ,  C22F1/04

CPC classification number: C22C18/04 ,  C22F1/165 ,  Y10S420/902

公开(公告)号：US3340101A

公开(公告)日：1967-09-05

申请号：US44518865

申请日：1965-04-02

Applicant: IBM

Inventor： FIELDS JR DAVIS S ,  MEHL DANIEL L ,  ADDIS BERNARD F

IPC: B21D26/055 ,  C22F1/00 ,  C22F1/16

CPC classification number: B21D26/055 ,  C22F1/00 ,  C22F1/006 ,  C22F1/165

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.

公开(公告)号：US3535908A

公开(公告)日：1970-10-27

申请号：US3535908D

申请日：1967-07-14

Applicant: IBM

Inventor： HYMES LAWRENCE ,  MEHL DANIEL L

IPC: B21J5/00 ,  B22D17/00 ,  B21C23/00

CPC classification number: B22D17/007 ,  B21C23/001 ,  B21J5/00 ,  B21J5/004 ,  B22D17/00