Method for manufacturing rotary cutting die

Metal working – Method of mechanical manufacture – Shaping mating parts for reassembly in different positions

Reexamination Certificate

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Reexamination Certificate

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06959477

ABSTRACT:
A lower plywood sheet and an upper plywood sheet which are set on a cylinder are cut in two processes by use of a router to create a 1.4-mm-wide groove in the back of the lower plywood sheet and in the front of the upper plywood sheet. Thus, a rotary cutting die which allows a 4-point (1.4-mm-thick) blade to be accurately inserted thereinto, a method for manufacturing the same, and a device for manufacturing the same are provided.

REFERENCES:
patent: 6109158 (2000-08-01), Koelsch
patent: 6189414 (2001-02-01), Yoshizawa et al.
patent: D447495 (2001-09-01), Strobel et al.
patent: 2004/0023773 (2004-02-01), Dombkowski
patent: 3015518 (1995-06-01), None

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