Method and apparatus for the two-step rolling of rings

Details Method and apparatus for the two-step rolling of rings Method and apparatus for the two-step rolling of rings

1985-10-23

1987-06-16

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

72106, B21H 112

Patent

active

046728333

ABSTRACT:
Method and apparatus are provided for the two-step rolling of predominantly profiled rings, for example, anti-friction bearing rings, with diameter enlargement in two rolling steps in one working sequence for the considerable reduction of the stress on the rolling mandrel.

REFERENCES:
patent: 899436 (1908-09-01), Ritter
patent: 1661024 (1928-02-01), Venable
patent: 2925003 (1960-02-01), McMullen et al.
patent: 3681962 (1972-08-01), Marcovitch
patent: 3822574 (1974-07-01), Krupin et al.

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