Edwin Henry Spuhler
Engineers at Marilyn Rd, Colorado Springs, CO
License number
Colorado 14156
Issued Date
Jun 15, 1976
Renew Date
Jun 1, 2004
Expiration Date
May 31, 2006
Type
Professional Engineer
Address
Address
2912 Marilyn Rd, Colorado Springs, CO 80909
Professional information
Ejection Of Superplastically Formed Part With Minimum Distortion
US Patent:
4741197, May 3, 1988
Filed:
Apr 25, 1986
Appl. No.:
6/856023
Inventors:
Edwin H. Spuhler - Colorado Springs CO
James M. Story - Plum Boro PA
James M. Story - Plum Boro PA
Assignee:
Aluminum Company of America - Pittsburgh PA
International Classification:
B21D 4502
US Classification:
72427
Abstract:
A method of removing or ejecting a part from a first die after the part has been superplastically formed in a cavity of the die at an elevated temperature such that the part sticks to the surfaces of the die. The method includes the steps of forming a flange of the part between opposed die surfaces and providing movable plate within the die cavity and a ring on the opposed surface of the first die that engages the flange and the part in the cavity in a uniform manner. The movable plate and ring are then translated away from the die surfaces to uniformly move the part from the first die after the dies are separated.