Light weight drive shaft

Details Light weight drive shaft Light weight drive shaft

1990-07-09

1992-04-21

Larson, Lowell A.

Metal deforming

By extruding through orifice

Expressing non-uniform cross-section or non-linear product

B21C 2308

Patent

active

051056445

ABSTRACT:
A lightweight driveshaft is extruded from a tubular metal blank into an elongated tube having an integral center and opposite end sections. The center section has a thin wall while the end sections have a thick wall. The shaft is formed by inserting a tubular blank within a tubular die having a restricted die throat through which the blank is extruded. Punches are inserted into the tubular blank to extrude the shaft.

REFERENCES:
patent: 2363635 (1944-11-01), Blair
patent: 2452628 (1948-11-01), Bartlett et al.

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