Method of manufacturing a rack

Details Method of manufacturing a rack Method of manufacturing a rack

1995-11-17

1997-05-13

Larson, Lowell A.

Metal deforming

By use of 'flying tool' engaging moving work

Including orbitally-moving tool-face

72370, B21B 2100, B21B 1702

Patent

active

056282222

ABSTRACT:
A method of forming a hollow pipe-like rack material with rack teeth by causing mutual movement of the rack material and a forming roll is disclosed. A core bar is inserted inside the pipe-like material where the sectional profile of the core bar has a material support surface that is spaced apart from rack teeth formation portion of the rack material; the material support surface being raised.

REFERENCES:
patent: 2771117 (1956-11-01), Le Febvre et al.
patent: 3756057 (1973-09-01), Brooks, Jr. et al.
patent: 4513601 (1985-04-01), Herbulot
patent: 4622840 (1986-11-01), Diffenderfer et al.

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