Method for manufacturing a hollow rack shaft

Details Method for manufacturing a hollow rack shaft Method for manufacturing a hollow rack shaft

2005-01-25

2005-01-25

Jimenez, Marc (Department: 3726)

Metal working

Method of mechanical manufacture

Gear making

C029S893300, C072S702000, C072S370040, C072S370210

Reexamination Certificate

active

06845560

ABSTRACT:
Methods are provided for forming a hollow rack shaft from a workpiece comprising a rectangular plate. The workpiece is first bent into a gutter-like shape using a first die set. Rack teeth are then press-formed in a portion of the gutter-like shape using a second die set. The legs, or sides, of the workpiece are then bent around a mandrel into a semi-circular shape so as to butt against each other. Preferably, the die sets and mandrel may be adapted to improve the resulting hollow rack shaft.

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