| 摘要 |
Axial loads encountered during thread cutting are reduced by controlling interactions between rotation speed, axial feeding speed, feeding (threading) pitch, and feeding position. A counterload is generated by changing a feeding pitch to a corrected feeding pitch, which changes the rotation speed, while keeping the feeding speed constant; by changing the feeding speed, while compensating the rotation speed (which is derived from the feeding speed) to remain constant; by changing the rotation speed, while compensating the rotation speed deviation feedback (to allow the deviation correction to follow the rotation speed change), while keeping the feeding speed constant; by generating a function according to empirical results that controls the feeding pitch, and therefore the rotation speed, while keeping the feeding speed constant; and by combinations of these methods.
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