Method for densifying teeth of a gear wheel

Details Method for densifying teeth of a gear wheel Method for densifying teeth of a gear wheel

2006-09-26

2006-09-26

Bryant, David P. (Department: 3729)

Metal working

Method of mechanical manufacture

Gear making

C029S893340, C029S893360, C029S893370, C074S457000

Reexamination Certificate

active

07111395

ABSTRACT:
A method and an apparatus are described for producing a gear wheel from a powder metal blank (1) which is sintered and pressed with an overmeasure in the flank and root region of the teeth and which in the region of the overmeasure is densified under plastic deformation by the overmeasure by pressing in a counter-toothing (3) of a pressing tool (2) which engages in the toothing (4). In order to provide advantageous conditions it is proposed that during the plastic deformation of the flank or foot region of the tooth, the tip surface of the respective tooth is subjected to a pressure force counteracting an extension of the tooth.

REFERENCES:
patent: 4106361 (1978-08-01), Burtis
patent: 4111031 (1978-09-01), Vennemeyer et al.
patent: 6044555 (2000-04-01), Jacob et al.
patent: 6168754 (2001-01-01), Woolf et al.
patent: 10176203 (1998-06-01), None
patent: 10176203 (1998-06-01), None
patent: 9205897 (1992-04-01), None
patent: 0043148 (2000-07-01), None

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