Daryl Lee Robbins

US Patent:

56343612, Jun 3, 1997

Filed:

May 24, 1994

Appl. No.:

8/248269

Inventors:

George J. Herschman - Bath PA
Daryl L. Robbins - Chadds Ford PA

Assignee:

Advanced Machine Systems - Bath PA

International Classification:

B21D 110

US Classification:

72 3102

Abstract:

This invention provides methods and apparatuses for determining the non-true condition of a damaged metal wheel such as the wheel's radial runout, its lateral runout, and the length of its damaged zone. The invention provides for the use of components which rigidly hold the wheel in a fixture, which apply heat to the wheel in a controlled manner so as to raise the temperature of the wheel to its somewhat softened state, and which apply a suitable force to the damaged zone while the wheel is in its, or while it is being heated, to its somewhat softened state. This force is applied to the heated wheel until the radial runout of the damaged zone is reduced to a first predetermined limit. The invention also provides for the use of components which rotate the wheel between at least a pair of oppositely-positioned contacting and compressing rollers. This compression action occurs after the wheel has been heated to its, or while it is being heated to its, somewhat softened state.