阐述内锥面刃磨麻花钻原理及在工具磨床上进行磨削工艺试验的方法和机床的调整。
Illustrates the principle of the inner cone grinding twist drills, the process of grinding experiments on the tool grinder and the adjustment of the tool grinder.
详细阐述了通过机床的调整、刀夹和端面刀的改进及废端面刀的再利用，提高刀具材料的利用率，降低产品成本。
Adjusting of the machines, improvement of tool holder and tool end and reuse of used tools were introduced. With the way, the amount of material is saved and the cost is decreased.
数控机床的转速调整，目前越来越多地应用了变压变频技术来实现。
NC machine speed adjustment, and more and more application of the VVVF technology to achieve.
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