B - Operations – Transporting – 22 – F
Patent
B - Operations, Transporting
22
F
18/1129
B22F 3/02 (2006.01) B22F 3/12 (2006.01) B30B 11/00 (2006.01)
Patent
CA 1172015
ABSTRACT OF THE DISCLOSURE A method of forming an article to a final form in a final cavity between two dies by forming a preform having the general shape of the final form of the article and thereafter measuring the amount of material contained in the preform and removing any material from the preform in excess of the amount of material required to completely fill the volume of the final cavity and then enclosing the preform in the final cavity to completely surround the preform and conform the preform to the shape of the final cavity to produce the final form of the article. Preferably, the preform is first formed by compacting powder metal so as to have a greater dimension in one di- rection than the final form and a lesser dimension in a transverse direction. After weighing the preform and re- moving excess material from the exterior of the preform, the preform is placed between two dies of a press which close to initially apply pressure to the greater dimension of the preform to reduce that dimension to the final desired dimension while increasing the lesser dimension to the final desired dimension of the final preform.
390869
Kelsey-Hayes Company
Smart & Biggar
LandOfFree
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