Apparatus for rolling a ring-shaped work

Details Apparatus for rolling a ring-shaped work Apparatus for rolling a ring-shaped work

1995-05-18

1997-02-25

Larson, Lowell A.

Metal deforming

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

During rotation of work

72110, B21H 106

Patent

active

056050682

ABSTRACT:
A work 12 is selectively loaded one of forming portions 20, 22, and so on, which are formed on a mandrel 18. Then, the work 12 is pressed between the selected forming portion and a forming roll 10 and rotated together with the forming roll 10 and the mandrel 18 in this state, thereby rolled and formed a groove on its inner surface. The mandrel 18 is provided movably in its axial direction, and the forming portions 20, 22, and so on, are subsequently selected for rolling the work 12 step by step. After finishing the rolling, the work 12 is unloaded from the mandrel 18, guided by a work guiding passage, and is supplied to the sizing device 120, wherein the work 12 is pushed into a die 121 and sized the outer diameter thereof.

REFERENCES:
patent: 1661024 (1928-02-01), Venable
patent: 3190098 (1965-06-01), Wilson
patent: 3943740 (1976-03-01), Bartenstein
patent: 4672833 (1987-06-01), Bartko et al.
patent: 4869088 (1989-09-01), Kadotani

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