为了保证加工表面质量，数控车床一般都具有恒表面切削速度控制功能。
In order to guarantee the machining surface quality, numerical control lathe generally has constant surface cutting speed control function.
目的以超微结构为基础，了解准分子激光表面切削术后角膜生物组织反应特点。
Objective To evaluate the ultrastructural changes of the cornea after excimer laser ablation and to understand laser interaction with cornea.
切削速度只有在对表面粗糙度不做要求的时候才不重要。
Cutting speed only in the surface roughness not required when it is not important.
在加工端面、圆弧、圆锥以及蹊径直径相差较大的零件时，沿X轴方向进给时，固然进给速度不变，但切削线速度却不断地变化，导致加工表面质量变化。
In the end, arc, processing and ground is large diameter conical parts, along the X axis into to, is the same, but the linear cutting speed is constantly changing, the cutting surface quality changes.
为增加切削刀具表面硬度引入了钻石化学蒸发沉淀涂层工艺。
Diamond CVD coating process is introduced to increase the surface hardness of cutting tools.
进一步指出，当切削方向背离破坏区扩展方向时，能得到较好的已加工表面质量。
It is further shown that the cutting direction has a remarkable effect on the machined surface quality.
以这两种刀片在不同切削用量条件下的耐用度、加工表面粗糙度和主切削力作为刀具加工性能的评价依据，同时研究了刀片的磨、破损机理和卷、排屑稳定性。
The tool lifespan, surface roughness and main cutting force of the two kinds of tools with different machining parameters are used as the evaluation criterion of machining ability.
为去除损伤而对表面进行切削和打磨的时候，对翻修区域的喷丸应当和原有的喷丸面适当交叠。
When a surface is machined or ground to remove damage, the reworked area should be shot-peened with proper overlap onto the existing shot-peened surface.
在小颗粒松散磨料的低磨损区，磨损机理主要是微观切削磨损机理，表面有明显的犁沟或者印痕。
In the low wearing area of the loose abrasive of tiny particle, wear mechanism is mainly the micro-cuts wearing mechanism, and the surface has obvious furrow and indentation.
切削力、磨削力和磨削表面粗糙度是表征切削加工和磨削加工的最重要特征量，对它们进行预测分析和过程控制具有十分重要的意义。
Cutting force, grinding force and surface roughness of grinding are the most important parameters to scale machine progress, thus precision methods for them is needed in engineering.
端面车削既可以从外表面向内切削也可以从工件中心往外切削。
Facing can be carried out either from the periphery inward or from the center of the workpiece outward.
本论文在分析现状的基础上，从切削声信号和工件表面纹理这两个方面对刀具磨损状态监测技术进行了研究。
This paper researches on the tool wear condition monitoring by cutting sound signal and workpiece surface texture based on analysis of the relative situation.
最好的办法，以确保适当的角度就是削减你的头部直接切削表面和产品。
The best way to ensure the proper Angle is to cut with your head directly over the cutting surface and product.
结果表明：工件进给速度对表面粗糙度的影响最大，切削深度和刀具前角次之，工件硬度影响最小。
The results show that the effects on surface roughness are feed speed, depth of cutting , tool rake angle and parts hardness in turn.
经加工试验证明了该表面粗糙度预测模型的有效性，从而实现加工前在确定切削条件下预测和控制表面粗糙度的目的。
It proves that this prediction model is effective by machining experiments. Using prediction model can predict and control surface roughness under certain condition.
重点研究了加工单晶材料时晶向对临界切深、微切削力和表面粗糙度的影响；
The crystallographic effects on critical depth, micro cutting forces and surface waviness when machining single crystals are emphatically investigated.
介绍了渗氮、超低温处理、气相沉积、等离子改性以及复合表面处理技术等在切削刀具中的应用现状和发展趋势。
The status and development trend of surface treatments, such as nitriding, vapor deposition, plasma modification and multiplex surface treatment technology used for cutting tools were described.
加大插齿刀后角可以有效改善插齿刀的切削条件，提高齿表面加工质量和延长刀具使用寿命。
Enlarging the clearance of gear shaping cutter can improve efficiently its cutting condition, the gear surface quality and tool life.
被切削表面光滑平整。
本文主要研究PCD刀具加工有色金属时刃口及后刀面的刃磨质量对切削表面质量的影响。
The influences of flank surface and edge quality of PCD cutting tool on cutting surface quality when machining nonferrous metal are studied in this paper.
在此基础上，建立了陶瓷镜面磨削塑性变质层的物理模型，并用微刃切削理论解释了表面晶粒的碎化机理。
Based on these, the physical model of plastic degenerating layer has been established and the fractional mechanism of surface crystal particles has been explained by micro-edge cutting theory.
本文通过实验研究了金刚石薄膜涂层刀具的破损机理及刀具表面状态、切削用量对其损坏形式的影响。
This paper studied the breakage mechanism of the diamond film-coated tools, the influence of the surface appearance, the cutting parameters on the damage forms.
合适进给的选择取决于许多因素，例如所需表面光洁度、切削深度和所用刀具的几何形状。
The selection of a suitable feed depends upon many factors, such as the required surface finish, the depth of cut, and the geometry of the tool used.
切削金属时，可以看到光亮的表面，但立刻就变成灰色。
When metals are cut, the shining surface is visible, but it turns grey almost immediately.
通过对成品轴承的清洗，可以去除粘附在轴承表面和沟槽内的铁屑、切削液等杂质，提高轴承的精度与寿命。
It can clear scrap iron, cutting fluid and some other inclusion in order to raise the precision and the life of bearings.
从理论模型中提出的这项工作，表面形貌可从追溯的切削条件，刀具几何形状，切削工具不完善和铣床偏差。
From the theoretical model proposed in this work, the surface prole can be deduced from cutting conditions, cutter geometry, cutting tool imperfections and milling machine deviations.
从理论模型中提出的这项工作，表面形貌可从追溯的切削条件，刀具几何形状，切削工具不完善和铣床偏差。
From the theoretical model proposed in this work, the surface prole can be deduced from cutting conditions, cutter geometry, cutting tool imperfections and milling machine deviations.
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