Flexible, self-supporting blade for cutting electronic crystals

Stone working – Sawing – Rotary

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Details

4273837, B28D 104

Patent

active

042190045

ABSTRACT:
A diamond-nickel blade for cutting electronic crystals and substrates or the like comprising diamond particles in a nickel matrix. The nickel matrix is the sole support for the blade and the volume of the nickel matrix is no greater than about 55% of the volume of the blade. Such blades are made by immersing a flat, electrically conductive substrate in a suspension comprising diamond particles in an electrolyte; electrodepositing nickel in an annular pattern corresponding to the desired shape of the blade on a surface of the substrate, the electrodeposited nickel being only lightly adherent to the substrate surface (diamond particles are thereby codeposited in the nickel which forms a matrix around them); and stripping the annular deposit of nickel and diamond particles from the substrate. Also disclosed are blade-mounting means comprising two identical, lapped-surface collars and a ring.

REFERENCES:
patent: Re29285 (1977-06-01), Christini
patent: 3353306 (1967-11-01), Seymour
patent: 3488892 (1970-01-01), Benner
patent: 3617363 (1971-11-01), Metzger
patent: 3691707 (1972-09-01), Von Arx
patent: 3785938 (1974-01-01), Sam
patent: 3886925 (1975-06-01), Regan
Brochure, "Disco Abrasive System", Dia-Ichi Seitosho Ltd., dated Dec. 5, 1974.
Brochure, Electroglas Inc., dated 5-1974.

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