Method of punching material

Details Method of punching material Method of punching material

1989-02-27

1990-08-07

Yost, Frank T.

Cutting

Processes

Plural cutting steps

83 39, B23D 2700

Patent

active

049457969

ABSTRACT:
The present invention is a method for removing material from a sheet of material with a press having a movable upper platen, a stationary lower platen, and a cutting tool secured to the upper platen. The method includes the steps of establishing a reference point at the surface of the material with the cutting tool and moving the upper platen and cutting tool away from the lower platen a predetermined distance once the reference point is established. The steps also include moving the upper platen and cutting tool toward the lower platen the predetermined distance plus a percentage of the thickness of the material to displace material to be cut with the cutting tool. The steps further include repeating the latter two steps a plurality of times until the material to be cut is removed from the remainder of the material.

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