Hayward P Summers

US Patent:

59665815, Oct 12, 1999

Filed:

Aug 30, 1996

Appl. No.:

8/706133

Inventors:

Jack E. Pederson - Ypsilanti MI
Hayward P. Summers - Plymouth MI

Assignee:

Borg-Warner Automotive, Inc. - Sterling Heights MI

International Classification:

B22F 312
B22F 508

US Classification:

419 28

Abstract:

A method for manufacturing metal by a cold worked powdered metal forging process is disclosed. A certain amount of a powdered metal is measured out and then compacted into a briquette or other compact. The briquette is then sintered to form a preform. After sintering, the preform is then cold worked to increase its strength. After cold working, the preform is forged to form the desired part. The resultant part has improved fatigue life, surface finish, and metallurgical characteristics.

US Patent:

50512323, Sep 24, 1991

Filed:

Jan 16, 1990

Appl. No.:

7/465830

Inventors:

Hayward P. Summers - Plymouth MI

Assignee:

Federal-Mogul Corporation - Southfield MI

International Classification:

B22F 326

US Classification:

419 27

Abstract:

The separation of two or more forged powder metal components is facilitated by forming a compacted and sintered powder metal preform with at least one slit that separates the component pieces. An anti-bonding agent such as graphite is introduced into the slit and the preform is then forged to final shape. The anti-bonding agent prevents the complete bonding of the powder metal pieces to each other thereby facilitating separation of the pieces at the slit. This method is particularly suited for the manufacture of piston connecting rod assemblies of the type including a connecting rod and cap.

US Patent:

46666656, May 19, 1987

Filed:

Jan 30, 1986

Appl. No.:

6/823920

Inventors:

William S. Hornsby - Windsor, CA
Joseph C. Skurka - Fenton MI
Hayward P. Summers - Plymouth MI

Assignee:

Federal-Mogul Corporation - Southfield MI

International Classification:

B22F 324

US Classification:

419 48

Abstract:

An apparatus and method of hot-forging in a forging press a cylindrical powdered metal preform to substantially full theoretical density to thereby produce a powdered metal part having a small inner bore wherein the core rod defining such bore is constructed so as to allow a continuous flow of a highly vaporizable liquid coolant such as nitrogen to the metal forming portion of the core rod and to thermally insulate the incoming coolant to assure its being maintained substantially unvaporized until being expelled to the core rod cooling chamber.