Manufacture of a metal bonded abrasive product

Details Manufacture of a metal bonded abrasive product Manufacture of a metal bonded abrasive product

1997-09-03

1999-08-03

Speer, Timothy M.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

264 65, 76DIG12, B24D 302

Patent

active

059325089

ABSTRACT:
A method of manufacturing a metal bonded abrasive product such as a saw or drill segment or bead for a diamond wire is provided. The method includes the steps of providing a mixture of the metal, in particulate form, and the abrasive particles, cold pressing the mixture to the desired final shape at a pressure in the range 320 to 1500 MPa to produce a cold pressed product at a temperature in the range 900 to 1300.degree. C. under conditions which inhibit degradation of the abrasive particles and the particulate metal. The product, after free sintering, will generally have a relatively high porosity, for example, a porosity of 10 to 25 percent by volume.

REFERENCES:
patent: 4142872 (1979-03-01), Conradi
patent: 4378975 (1983-04-01), Tomlinson et al.
patent: 4655795 (1987-04-01), Bleecker et al.
patent: 4770907 (1988-09-01), Kimura
patent: 5232469 (1993-08-01), McEachron et al.

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