Method for the precision working of the flanks of gears with a gear-shaped tool coated with hard-material granules and a method for dressing such a tool
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United States of America Patent
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-
Mar 17, 1987
Grant Date -
N/A
app pub date -
May 8, 1985
filing date -
May 16, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for the manufacture or machining of the tooth system of straight or helically toothed, externally or internally toothed, nonhardened or hardened workpiece with a toothed tool, the tooth flanks of which are coated with a cubic boron nitride (CBN). The workpiece and the tool roll along with a single-flank contact and are supported by a guide-gear pair which also roll along with a single-flank contact. The contacting flanks of the workpiece-tool pair are the mating flanks for the contacting flanks of the guide-gear pair. To protect the CNB-coating, the tool is already driven at a speed which is necessary for an optimum chip removal before the tool tooth flanks start to work on the workpiece tooth flanks.
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