negative rake

基本解釋

It is possible to have rake angles at zero or negative.
前角取零度或負值也是可能的。
This error has influenced the precision of gear, especially, when negative rake angle of gear-shaped cutter is used, the current design method has not reguired the profile precision.
這種誤差影響了齒形精度，特別是負前角插齒刀，現(xiàn)行的設計方法不能滿足齒形精度。
The present paper also introduces the theory for the design of bit parameters in order to improve the economic target, such as negative rake angle, bypass angle and the exposure height.
本文還介紹了爲提高複郃片鑽頭經(jīng)濟指標的諸鑽頭蓡數(shù)設計的理論根據(jù)，如負前角、旁通角、出露高度、複郃片佈置等等。