Method for manufacturing poly-V pulleys

Details Method for manufacturing poly-V pulleys Method for manufacturing poly-V pulleys

1980-04-30

1982-02-02

Larson, Lowell A.

Metal deforming

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

During rotation of work

29159R, B21H 100

Patent

active

043133231

ABSTRACT:
A method for manufacturing a poly-V pulley comprising pre-forming the flange wall of a cup-shaped blank to have a corrugated cross section having a series of valleys formed around the outer circumference thereof, axially compressing the corrugated flange wall of the blank, and pressing a rotary forming roller against valleys formed around the outer circumference of the flange wall to form each of valleys to a predetermined V-groove. The axially compressing process is carried out keeping respective outer circumference of axially movable auxiliary forming rollers inserted into their corresponding valleys formed around the outer circumference of the flange wall of the blank.

REFERENCES:
patent: 3457751 (1969-07-01), Lindeman
patent: 3953995 (1976-05-01), Haswell et al.
patent: 3977264 (1976-08-01), Sproul

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