Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1981-03-23
1983-12-13
Smith, James G.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51154, B24B 504
Patent
active
044198450
ABSTRACT:
A rough-ground camshaft has a shaft extending along and defining an axis and carrying a plurality of axially spaced cams each having a cam surface. This camshaft is finish-ground in system wherein for each cam there is a respective coarse prefinish tool and a respective fine finish tool. Every other cam surface is engaged in one diametrial direction by the respective coarse prefinish tool and in the opposite diametrical direction by the respective fine finish tool, and vice versa for the remaining cams, so that the prefinish tools, like the finish tools, alternate to opposite side of the camshaft axis. The camshaft is rotated about its axis and to start with all of the tools are urged against the respective cams, so that each cam is engaged in one diametrical direction by the respective prefinish tool and in the opposite direction by the respective fine finish tool. This shapes the tools, whereupon the fine finish tools are retracted for prefinishing of the cam surfaces. Then the prefinish tools are retracted and the fine finish tools are engaged with the cams for fine-finishing.
REFERENCES:
patent: 1622755 (1977-03-01), Asbridge
patent: 1957568 (1934-05-01), Wills
patent: 4141180 (1979-02-01), Gill, Jr. et al.
Voigt Heinz
Wolters Martin
Dubno Herbert
Ernst Thielenhaus KG
Fridie Jr. Willmon
Ross Karl F.
Smith James G.
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