Method and apparatus for the production of machine tools

Details Method and apparatus for the production of machine tools Method and apparatus for the production of machine tools

1976-02-17

1977-11-22

Vlachos, Leonidas

Metal tools and implements, making

Blank or process

Drill

72 96, 72100, 72264, B21K 502, B21D 1900, B21C 2304

Patent

active

040590313

ABSTRACT:
A method and apparatus as disclosed, to produce a work piece, for example -- a twist drill or the same with inside cooling channels by means of a core matrix or core pins incorporated with the deforming pass, instead of using fusable metal filling. The points of the core matrix or core pins are located in the narrow pass of the forming caliber and remain fixed until the work piece is processed. At the end of the forming process, the work piece with its inside, open cooling channels, is expelled and a new operation starts.

REFERENCES:
patent: 2148805 (1939-02-01), Cogsdill
patent: 2764042 (1956-09-01), Gotze
patent: 2935906 (1960-05-01), Andreasson
patent: 3031553 (1962-04-01), Erdelyi
patent: 3347079 (1967-10-01), Rowell
patent: 3555935 (1971-01-01), Dorrenberg

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