Method for welding cutter segments

Details Method for welding cutter segments Method for welding cutter segments

1985-04-24

1987-09-01

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51207, 219121LC, B24D 506

Patent

active

046899197

ABSTRACT:
Method for welding cutter-segments characterized by focusing an electron beam or a laser beam on the boundary between a carbon-steel core body (7) and segments (1). Each segment is formed by a Co (cobalt) powder compact, containing diamond or CBN grit, which has been sintered to nearly 100% apparent density. The boundary may or may not have Ni (nickel)-filler. In cases of bond materials other than Co, the segment (1) has a structure of double layers (4, 5), one layer of which is composed of a powder compact, containing diamond or CBN grit, which has been sintered to nearly 100% apparent density, and the other layer (5) of which is composed of a sintered Co powder compact without any grit. The carbon-steel core body (7) welded by the above-mentioned method is thereafter tempered at 350.degree.-450.degree. C. if necessary. A steel core having no slot at its periphery may be used as the core body.

REFERENCES:
patent: 2683923 (1954-07-01), Replogle
patent: 3069816 (1962-12-01), Pratt et al.
patent: 3110579 (1963-11-01), Benson et al.
patent: 3203774 (1965-08-01), Pratt
patent: 3590535 (1971-07-01), Benson et al.
patent: 4462293 (1984-07-01), Gunzner
Marks' Standard Handbook for Mechanical Engineers, pp. 13-47, 13-48.

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