Method of superfinishing a gothic-arch groove
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United States of America Patent
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Dec 15, 1992
Grant Date -
N/A
app pub date -
Nov 7, 1990
filing date -
Nov 7, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In superfinishing a Gothic-arch-shaped groove of a nut by using a superfinishing stone attached to the tip end of an oscillation arm while oscillating the superfinishing stone about the oscillation axis and, at the same time, moving the superfinishing stone in the longitudinal direction of the Gothic-arch groove, the oscillation axis is inclined by a predetermined angle with respect to the longitudinal direction of the Gothic-arch groove. The shape of the cross section of the Gothic-arch groove orthogonal to the oscillation axis is regarded as a single circular arc and, thus, both flanks of the Gothic-arch groove can be superfinished simultaneously.
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