Method of making blanking die sets

Details Method of making blanking die sets Method of making blanking die sets

1986-08-01

1988-06-21

Parker, Roscoe V.

Metal tools and implements, making

Blank or process

Die

219121EM, B23H 912, B21D 3720

Patent

active

047518600

ABSTRACT:
The method of making blanking die sets provides for preparing a stack of blanks of a predetermined profile for use as positive tool electrodes. The working parts of blanking die sets are subjected to prior machining. Production holes are provided in positive tool electrodes, after which using one of the positive tool electrodes, the working parts of the die set are marked off, dimensions of the working profile of the tool electrode are reduced either mechanically or chemically, and the female die and the stripper are subjected to rough electrical discharge machining. The second positive tool electrode is used for finish electrical discharge machining of the female die and the stripper. The third positive tool electrode is used for burning through a stack of negative tool electrodes wherein production holes are provided. The negative tool electrodes are used for rough and finish machining of the male die and the knock-out.

REFERENCES:
V. S. Mendelson et al, "Manufacture of Dies and Moulds", 1982, Mashinostroenie, Publishers (Moscow), p. 78.
B. A. Artamonov et al, "Electromachining of Metals to Correct Size", 1978, Vysshaya Shkola Publishers, (Moscow), p. 132 and pp. 160-162.
V. M. Vladimirov, "Manufacture of Die Sets, Press Moulds and Fixtures", Vysshaya Shkola Publishers, 1981, pp. 180-201.

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