Finishing of Hob Tooth Flank by Plunge Grinding

It is desirable to increase the number of cutting edges per bob revolution as much as possible to reduce the burden of each cutting edge and the polygon error caused in bobbing process. But, it is difficult to increase the number of cutting edges because interference between the grinding wheel and t...

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Veröffentlicht in:Journal of the Japan Society for Precision Engineering 2003/11/05, Vol.69(11), pp.1615-1619
Hauptverfasser: ONO, Takayoshi, YOSHINO, Hidehiro, OHSHIMA, Fumihiro
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container_issue 11
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container_title Journal of the Japan Society for Precision Engineering
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creator ONO, Takayoshi
YOSHINO, Hidehiro
OHSHIMA, Fumihiro
description It is desirable to increase the number of cutting edges per bob revolution as much as possible to reduce the burden of each cutting edge and the polygon error caused in bobbing process. But, it is difficult to increase the number of cutting edges because interference between the grinding wheel and the following cutting edge in relief grinding of the hob is apt to occur. A method for finishing the hob cutting edges by plunge grinding without relieving motion is proposed. In the method, the cutting edge is finished when the grinding wheel and hob work are in a static position. In this paper, the calculation method of the grinding wheel profile to finish the cutting edges, the optimum static position to obtain the desirable clearance angle, and the effects of the positioning errors of the grinding wheel on the accuracy of finished cutting edges are investigated.
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But, it is difficult to increase the number of cutting edges because interference between the grinding wheel and the following cutting edge in relief grinding of the hob is apt to occur. A method for finishing the hob cutting edges by plunge grinding without relieving motion is proposed. In the method, the cutting edge is finished when the grinding wheel and hob work are in a static position. 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source EZB-FREE-00999 freely available EZB journals
subjects clearance angle
cutting edge
gash number
hob
plunge grinding
profile error
profiled grinding wheel
relief grinding
tooth flank
title Finishing of Hob Tooth Flank by Plunge Grinding
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