Method for machining parts made of tungsten and of tungsten with

Details Method for machining parts made of tungsten and of tungsten with Method for machining parts made of tungsten and of tungsten with

1987-09-11

1988-08-30

Briggs, William R.

Metal working

Method of mechanical manufacture

Shaping one-piece blank by removing material

82 1C, 408 1R, 409132, B23P 1304, B23C 300, B23B 3500, B23B 100

Patent

active

047666650

ABSTRACT:
A method is disclosed for shaping parts made of tungsten and of tungsten with thoria. The method involves machining the parts with a machining apparatus wherein the machining tool is made of diamond or material of which tungsten carbide is the main phase, the material having a hardness of greater than about 91 Rockwell A, the machining being done at a speed of from about 40 to about 120 surface feed per minute, and a feed rate of from about 0.0002 to about 0.006 inches per revolution. Machining of parts made of tungsten is done with cooling with a halocarbon solvent. Machining of parts made of tungsten and thoria can be done with or without cooling.

REFERENCES:
patent: 3145529 (1964-08-01), Maloof
patent: 3570332 (1971-03-01), Beake
patent: 4227842 (1980-10-01), Samanta et al.
patent: 4286905 (1981-09-01), Samanta
patent: 4341834 (1982-07-01), Kikuchi et al.
patent: 4563114 (1986-01-01), Casstevens
patent: 4587174 (1986-05-01), Yoshimura et al.
patent: 4708037 (1987-11-01), Buljan et al.

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