Method of calibrating vehicle wheels to a finished size

Details Method of calibrating vehicle wheels to a finished size Method of calibrating vehicle wheels to a finished size

1985-11-26

1987-11-24

Dean, R.

Metal treatment

Compositions

Heat treating

148 127A, C22F 104

Patent

active

047087498

ABSTRACT:
The desired finished size of the rim of an aluminum wheel which has undergone a solution heat treatment is calibrated by positioning the wheel, at a first temperature substantially equal to the temperature of the wheel after removal thereof from the solution heat treatment, in a die. The die is heated to a second temperature lower than the first temperature. The wheel is cooled to a third temperature lower than the second temperature, such that the rim is caused to shrink tightly over the die to the desired finished size. The cooling is interrupted such that the rim is heated by heat from the die and thereby is expanded by an amount sufficient to enable the rim to be removed easily from the die.

REFERENCES:
patent: 3172787 (1965-03-01), Martenet

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