Gear wheels roll formed from powder metal blanks

Details Gear wheels roll formed from powder metal blanks Gear wheels roll formed from powder metal blanks

2006-11-21

2006-11-21

Fenstermacher, David M. (Department: 3682)

Machine element or mechanism

Gearing

Teeth

C074S457000, C428S547000

Reexamination Certificate

active

07137312

ABSTRACT:
A method is disclosed for the manufacture of gear wheels having two axially adjacent gears (4,6) thereon. A blank is prepared with the two gears crudely formed thereon by compressing and sintering a shaped mass of substantially metal powder. The blank is then mounted for rotation about a first axis, and the gears are roll-formed on the blank by rotating the blank in meshing engagement with respective dies (10,12) mounted for rotation about second and third axes substantially parallel to the first axis.

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