Apparatus and method for stamping and deburring clutch discs

Metal deforming – With cutting – By shearing tool-couple

Reexamination Certificate

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C029S893330, C192S070140

Reexamination Certificate

active

10973680

ABSTRACT:
Stamped and deburred clutch discs (20a,20b) are provided by progressive stamping apparatus (46) whose method of use performs a two step stamping of the clutch disc blank and a third deburring stamping step that removes burrs on opposite axial faces by contact in opposite directions.

REFERENCES:
patent: 3307669 (1967-03-01), Klinkenberg
patent: 4672729 (1987-06-01), Hoguchi et al.
patent: 5737956 (1998-04-01), Takahashi et al.
patent: 5779018 (1998-07-01), Hofmann et al.
patent: 6212930 (2001-04-01), Skrabs et al.
patent: 6223578 (2001-05-01), Kamijo

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