Patent ID: 6279699
Filing Date: 2001-08-28
Classification: B23C,F16D,G01M,Y10T

Abstract:
A method for producing a final balanced brake drum comprising the steps of:(a) providing a brake drum including a generally cylindrical body provided with an integral raised squealer band, the squealer band having an outwardly facing surface initially machined to a predetermined diameter around its entire circumference, the brake drum having the initially machined squealer band incorporating an unacceptable imbalance;(b) determining first balancing specifications consisting of the location, length, and depth of a first circumferentially extending substantially constant depth cut which extends along a predetermined length of the squealer band and a second balancing specifications consisting of the location, length, and depth of a second circumferentially extending substantially constant depth cut which extends along a predetermined length of the squealer band which are necessary to correct the imbalance;(c) positioning the brake drum on a cutting machine; and(d) operating the cutting machine to make the first and second constant depth cuts along the squealer band in accordance with the balancing specifications determined in step (b) to thereby produce a final balanced brake drum.