Thread grinder

Details Thread grinder Thread grinder

1983-04-21

1984-11-27

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51 48HE, B24B 322

Patent

active

044849311

ABSTRACT:
A machine for grinding threads on a workpiece which is rotated in a workhead while the workhead is reciprocated by a table under a grinding wheel to form threads in the workpiece. To improve the accuracy with which the threads are formed, the workpiece and a grinding wheel dresser contact the grinding wheel on the same side of the wheel at points which are symmetrical to and on opposite sides of the centerline of the wheel which extends parallel to the path along which the wheel is fed into the workpiece. If a fluted workpiece is being ground to produce a tap, the threads may be relieved in accordance with either the United States or European convention.

REFERENCES:
patent: 3337996 (1967-08-01), Stade et al.
patent: 3538647 (1970-11-01), Woloszyn
patent: 3905156 (1975-09-01), Vogelsanger
patent: 4142330 (1979-03-01), Thut
patent: 4182083 (1980-01-01), Kushigian
patent: 4358911 (1982-11-01), Vogelsanger

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