切削刀具一开始变钝就须重新打磨。
Cutting tools must be reground at the first sign of dullness.
切削刀具必须比要切削的材料硬。
The cutting tool must be harder than the material to be cut.
切削刀具的硬度越高，耐磨性就越好。
Wear resistance improves as cutting tool hardness increases.
工件和切削刀具都牢固地安装在机器上。
Both the work and cutting tool are firmly supported by the machine.
不同的切削刀具材料在不同的温度点开始软化。
Various cutting tool materials begin to lose their hardness at different temperatures.
切削刀具还必须具有高强度才能抗振动和抗冲击。
Cutting tools must also have high strength in order to be vibration and impact-resistant.
分析了切削硬岩时的刀具磨损和破损特征。
不能直接观察到刀具的切削情况。
切削性能试验表明，激光硬化的刀具寿命可以大大提高。
Test of cutting performance shows that its lifetime can be increased greatly.
陶瓷刀具具有优良的切削性能。
金刚石是切削有色金属的优选刀具材料。
Diamond is the best material of cutting-tools to cut nonferrous metals.
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.
可听阈内的切削声信号包含着丰富的刀具磨损信息。
The cutting sound signal in audible range includes a plenty of tool-wear information.
在干切状态下，切削深度对刀具寿命影响最大。
Under dry cutting state, tool life is affected mostly by cutting depth.
烧结金刚石几乎是能胜任其切削加工的唯一刀具材料。
It indicated that the synthetic diamond tool is almost the only suitable cutting tool.
在分析PCD刀具切削模型的基础上进行了切削试验。
The cutting model of PCD cutting tool was analyzed and some experiments were done.
刀具的磨损和破损是切削加工研究的重点。
The cutting abrasion of tools is the focus in cutting study.
对机械加工时刀具的选择及切削参数的选择给出了明确方案。
The specific scheme has been given for selecting the cutting tool and parameter.
俯视显微照片显示了刀具的切削刃和前刀面。
The top view micrographs show the cutting edge and the rake face of the tools.
刀具的切削力和振动信号是研究刀具磨损状态的很好的手段。
The cutting force signals and vibration signals are good means to research tool wear.
刀具是一种先进的切削工具，由于其优良的切削性能而备受人们关注。
The coated cutting tools are a kind of advanced cutting tool with good cutting performance.
对高速钢刀具的磁化切削进行了初探。
对高速钢刀具的磁化切削进行了初探。
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