Method for manufacturing cutting tools and cutting tools made th

Details Method for manufacturing cutting tools and cutting tools made th Method for manufacturing cutting tools and cutting tools made th

1993-06-11

1995-05-09

Payer, Hwei Siu

Metal tools and implements, making

Blank or process

Drill

408144, B21K 502

Patent

active

054130166

ABSTRACT:
In a method of manufacturing tools having attached thereto cutting plates with a cutting edge coated with a hard cutting material, the cutting plates are first positioned on the cutting tool body in a desired position and fixed on the cutting tool body in that desired position by electric spot welding. Subsequently, the soldering material is applied to each cutting plate. Soldering of the cutting plates to the cutting tool body is performed at a temperature of 720.degree. C. to 850.degree. C. in a vacuum of 10.sup.-4 to 10.sup.-6 mbar. In a final step, the cutting tool body with the cutting plates soldered thereto is slowly cooled in the vacuum oven.

REFERENCES:
patent: 1441687 (1923-01-01), Jones
patent: 1833099 (1931-11-01), Welch et al.
patent: 2973047 (1961-02-01), Edgar et al.
patent: 4730765 (1988-03-01), Tomlinson et al.
patent: 5272940 (1993-12-01), Diskin
Andy Davies; Induction Brazing for Diamond Toolmakers; Jun. 1992; pp. 325-327.

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