Method of cold-forming near net shape metal roller blanks...

Details Method of cold-forming near net shape metal roller blanks... Method of cold-forming near net shape metal roller blanks...

2008-05-27

2008-05-27

Bryant, David P. (Department: 3726)

Metal working

Method of mechanical manufacture

Process for making bearing or component thereof

C072S354200, C072S354600, C072S354800, C384S565000, C384S568000

Reexamination Certificate

active

07377042

ABSTRACT:
A machine, method and tooling to precision cold-form roller blanks for anti-friction bearings. The machine is a multistage progressive former using floating die cavities to enable simultaneous shaping of the ends of the roller with high accuracy and without flash. The tools and staged forming create an improved roller with an advantageous grain pattern and devoid of structural defects previously attributable to the presence of sheared end face material in the radiused corners of the blank and flash at its mid-section.

REFERENCES:
patent: 1601252 (1926-09-01), Lines

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