建立了金属切削过程的二维颤振数学模型；
This Paper present a two-dimensional non-linear dynamic cutting model.
切削参数是切削过程优化最重要的控制因素。
Cutting parameters are the most important control factors in cutting process.
切削过程为复杂的随机过程，工艺参数较多。
The cutting process is the complex and stochastic process, there are many craft parameters.
因此了解金属切削过程以充分利用它是重要的。
It is therefore important to understand the metal cutting process in order to make the best use of it.
切削过程中，剪切角随切削速度的增加而增大。
切削过程中涂层剥落是造成刀具损坏的主要原因。
The breaking_off of coating during cutting is the main reason for tool damage.
金属切削过程是切削层金属的塑性变形和断裂过程。
Metal cutting is the process of plastic deformation and fracture.
切削过程中金属层流过剪切区发生塑性变形后形成切屑。
During metal cutting, the metal plastic deformation occurred on shearing plane zone.
在金属切削加工中，对高速切削过程的研究有着重要的意义。
In metal cutting, high-speed cutting process of great significance.
在金属切削加工中，对高速切削过程的研究有着重要的意义。
In metal cutting, high-speed cutting process of great significance.
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