本文首先从切削剪切变形和刀具离散化理论出发，推导出高速铣削条件下铣削力和切削速度的关系模型。
A relation model between cutting forces and cutting speed is established for high speed milling condition on the basis of research into the theory of shear distortion and the discrete milling cutter.
采用四面刃的剪切刀片，提高了刀具的使用寿命。
The adoption of four-sideedge shearing blade prolongs the service life of blade.
本文通过对盘形滚刀破岩工作运动特点、刀具磨损特性和破碎出的岩碴的分析，认为盘形滚刀的破岩存在着一定的剪切作用，它缘于盘形滚刀的侧向不平衡力。
On the analysis of the motional characteristics of disc cutters, cutters wear and tear, breaking rocks with them, the rock-cut must exist, This would come from the side-force.
结合剪切面及前刀面接触区的平均温度和切削热解析法，研究了高速切削中切削热在切屑、工件和刀具部分的量化分配规律。
Also, combining theoretical analysis method of cutting temperature with the FEA, the distribution of cutting heat in components of chip, workpiece and tool was researched.
分析了切削过程中切削力的变化情况，并指出负剪切现象对刀具破损的影响。
Analysis is conducted for the variation of cutting force during the cutting process and the effect of negative shearing on the cutter damage is pointed out.
应力，应变和铣削温度分布表明，压力是定位在主剪切带，而最大应变和温度升高时沿的刀具芯片接口。
Distribution of stress, strain and milling temperature showed that stress is localized in the primary shear zone, while the maximum strain and temperature rise occurs along the tool-chip interface.
应力，应变和铣削温度分布表明，压力是定位在主剪切带，而最大应变和温度升高时沿的刀具芯片接口。
Distribution of stress, strain and milling temperature showed that stress is localized in the primary shear zone, while the maximum strain and temperature rise occurs along the tool-chip interface.
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