Cutting – Processes – With subsequent handling
Patent
1994-03-01
1995-09-12
Peterson, Kenneth E.
Cutting
Processes
With subsequent handling
83 25, 83 98, 83216, 83554, B26D 718
Patent
active
054489334
ABSTRACT:
A method and apparatus for stamping a strip of material to prevent slug "back out" is disclosed. The stamping machine has a punch which moves through a first stroke and a second stroke. A slug receiving opening is provided in the die. The punch is moved during the first stroke into engagement with the strip of material. A slug is punched from the strip of material to form an opening therein. The punch is then moved through a second stroke, in which the punch is moved through the opening in the strip of material. As this occurs, the punch forces a volume of gas ahead of the punch, so that the volume of gas cooperates with the slug to force the slug into the slug receiving opening.
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Peterson Kenneth E.
The Whitaker Corporation
Wolstoncraft Bruce J.
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