Method of forming cam by grinding

Details Method of forming cam by grinding Method of forming cam by grinding

1983-04-22

1985-07-16

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

B24B 100

Patent

active

045287813

ABSTRACT:
A method of grinding a workpiece for shaping it into a cam by imparting a rotary motion and a rocking motion, which conforms to the profile of a master cam, to the workpiece. In the first rough grinding step, a grinding wheel is rapidly entered into the workpiece while the workpiece is rotated at a low velocity. In the second rough grinding step, the grinding wheel is rapidly entered into the workpiece while the workpiece is rotated at a velocity greater than the low velocity. In the third rough grinding step, the wheel is rapidly entered into the workpiece while the workpiece is rotated at a high velocity. Each of the three steps includes a step for removing the portion left uncut in such a state that the infeed of the wheel is ceased. The depths of cut in the three steps DS.sub.1, DS.sub.2 and DS.sub.3, respectively, are so set that the following relation holds:

REFERENCES:
patent: 4019288 (1977-04-01), Moritomo
patent: 4118900 (1978-10-01), Moritomo et al.
patent: 4299061 (1981-11-01), Parnum et al.

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