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.
声发射是一种新的切削刀具状态的监测方法。
Acoustic emission (AE) is a new method for cutting tool condition monitoring.
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.
用数学分析方法精确求解木材切削刀具的角度。
This article introduce a strict mathematical analysis that can exactly calculate angles of wood cutting tool.
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.
已经说明了工件必须相对于切削刀具定位并确保到位。
It has already been stated that the workpiece must be located relative to the cutting tool, and be secured in that position.
高速切削刀具技术则是实现高速切削的关键技术之一。
The high speed cutting tool technology is one of the key technologies to achieve :he high speed cutting.
切削刀具的切削力及密封圈回转摩擦力的初步分析计算。
A primary analysis for cutting force of the tools and the frictional force in rotating seal ring are also given.
夹具可以与切削刀具相对定位系统装夹的方法结合在一起。
Fixtures may incorporate means of setting the cutting tools relative to the location system.
因此切削刀具材料应具有高耐磨性以提高刀具的有效寿命。
The cutting tool material should therefore have high abrasion resistance to improve the effective life of the tool.
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.
利用绘图分析的方法分析金属切削刀具工作角度的变化规律。
The graphic method of analyzing the changing law of working angles for the wetting tools ispreseted.
在这种情况下，切削刀具即钻头快速转动，但工件却根本不动。
In this case, the cutting tool, thAT is, the drill, turns fast, but the workpiece doesn't move AT all.
本文还研究了玻璃切削刀具特征参数对已加工表面粗糙度的影响。
In addition, the influences of characteristic parameters of tools for glass cutting on machined surface roughness are presented in this paper.
典型切削刀具的简化形式如图7.1所示。要注意的重要特征如下。
A typical cutting tool in simplified form is shown in Fig. 7.1. The important features to be observed are follows.
切削刀具最重要的性能是在高温下能保持的硬度、耐磨损和冲击韧性。
The most important properties of cutting tools are hardness at high temperature, wear resistance, and impact strength.
对绿色铸造粘结剂、绿色热处理工艺、干切削刀具选用进行试验分析；
The test analyse is conducted to green casting adhesive and green heat treatment and selections of dry cutting tools.
在车削操作中，车床用一个单刃切削刀具在旋转的工件上进行金属切削。
For turning operations, the lathe USES a single-point cutting tool which removes metal as it travels past the revolving workpiece.
讨论这些材料性能之前，先看一下作为切削刀具材料应具备哪些重要特性。
Before we discuss the properties of these materials, let us look at the important characteristics expected of a cutting tool material.
本文在分析干切削加工对刀具要求的基础上，阐述了干切削刀具设计的要点。
After making an analysis of requirements for tools used in dry machining, the main points in the design of cutting tools for dry machining are ex-pounded.
夹具在机加工作业时夹持工件，但它不象钻模那样包含引导切削刀具的特殊布置。
A fixture holds the work during machining operations but does not contain special arrangements for guiding the cutting tool, as drill jigs do.
因此，刀具的硬度和它在高温下所能保持的硬度是选择切削刀具材料时的重要因素。
Hence, the hardness of the tool and the degree to which it remains its hardness at high temperature are important in the selection of a cutting-tool material.
图3 - 2说明了在一些普通切削成型加工工艺中，切削刀具和工件之间必要的关系。
Figure 3-2 illustrates the necessary relationship between cutting tool and the workpiece for chip formation in several common machining processes.
为了要把加工的零件切削成所要求的形状与尺寸，金属切削刀具就要从工件上切除切屑。
The metal cutting tool separates chips from the workpiece in order to cut the part to the desired shape and size .
理论分析表明：行星轮公转与自转的速比，影响着每个切削刀具的阻力矩的大小与方向；
Theoretical study shows that the ratio of revolution velocity to rotation velocity will affect the magnitude and direction of resistance moment of all the cutters.
本文介绍了刀具涂层在干式切削中的应用，综述了干切削刀具涂层制备新材料及新技术。
The applications of tools coating on dry machining were introduced. The new material and technology applied on dry machining tools coating were summarized.
为了要把加工的零件切削成所要求的形状和尺寸，金属切削刀具就要从工件上切除切屑。
The metal cutting tool separates chips from the workpiece in order to cut the part to the desired shape and size.
为了要把加工的零件切削成所要求的形状和尺寸，金属切削刀具就要从工件上切除切屑。
The metal cutting tool separates chips from the workpiece in order to cut the part to the desired shape and size.
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