Process for the production of a bearing bushing without machinin

Details Process for the production of a bearing bushing without machinin Process for the production of a bearing bushing without machinin

1981-09-09

1984-03-06

Larson, Lowell A.

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

72354, 72356, 72358, 72379, B21D 2200

Patent

active

044346409

ABSTRACT:
A method for making a bearing bushing for the support of the trunnion in universal joints comprising a cylindrical sleeve section, a bottom section at one axial end of the cylindrical sleeve section, the peripheral edge joining the sleeve section and bottom section being of small cross-sectional radius, consisting of the steps of shaping a blank to form the sleeve section and bottom section which uniformly extends axially inwardly to a central tip and thereafter flattening from the inside at least in the area of the central tip of the bottom section while supporting the bottom section and corresponding forging the outside surfaces of the bottom section in the area of the peripheral edge between the surface of the sleeve section and outside surface of the bottom section.

REFERENCES:
Gustave F. Bahr, "Drawing Shells with Sharp Corners", Feb. 19, 1920, American Machinist, vol. 52, No. 8.

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