事实上，铣削允许的切削速度和进给比车削或钻削高三到四倍。
In fact, the permissible cutting speeds and feeds for milling are three to four times higher than those for turning or drilling.
为扩大这一新技术的应用，本文就枪钻机床和枪钻的结构特点及其切削用量和刀具材料作了介绍。
In order to extend this new technology, the article introduces the mechanism of gun drilling and gun driller, cutting data and tool material.
所有深孔钻都是直出屑槽的，并且均为单切削刃。
All gun drills are straight-fluted, and each has a single cutting edge.
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.
深孔钻有两种类型，即用于钻盲孔的中心切削深孔钻和套孔钻。
There are two kinds of gun drills, namely, the center-cut gun drill used for drilling blind holes and the trepanning drill.
本文建立的模型和所采用的研究方法为其他类型的浅孔钻切削力的计算与数值仿真提供了有价值的参考。
The developed model and the research method employed are valuable for the cutting forces calculation and numerical simulation of other kinds of drills with indexable inserts.
理论分析和实验表明：应用该仿真模型，能在振动钻削过程的不同区段寻找最优的振动参数和切削参数。
Theoretical analysis and experiment show that the optimum vibration parameters and drilling parameters can be seeked at the different stages of the drilling process by proposed simulation model.
集中论述了在实际微孔钻削加工过程中主切削刃对微钻头折断和微孔加工精度的影响。
This article focused on drilling in the actual processing of microporous main cutting edge of micro-drill breaks and microporous processing accuracy.
得出普通钻磨时的轴向平均切削力和平均扭矩均远大于超声钻磨加工时的轴向平均切削力和平均扭矩；
The research results show that the average axial cutting force and torque of common drill-grinding are greater than that of ultrasonic drill-grinding.
利用相同的金属切削原理，也会得到完全不同的加工操作或工艺，磨和钻就是其中最普通的一个例子，由于采用不同的加工刀具而产生完全不同的两种加工操作。
A wide variety of machining operations or processes based on the same metal-cutting principle are available; among the most common are milling and drilling carried out on various machine tools.
定钻压、定转速条件下的单切削齿磨损速度试验结果表明，切削齿的线磨损模式是正确的。
On the basis of analyzing cutting mechanisms of cutters, a linear wearing speed model is established by researching the abrasive law of cutters.
通常普通麻花钻的螺旋槽加工有三种方式：切削加工、扭制加工和磨削加工。
Usually there are three methods can be used to machine the spiral flute of twist drill, such as cutting, torsion, grinding.
基于振动钻削的基本原理，对轴向振动钻削的运动学特性和钻尖切削状况进行了分析。
Based on the basic principle of vibration drilling, its kinematics characteristics was analyzed and the cutting conditions of twist drill were studied.
振动钻削方法具有消减切削颤振的特殊功能，能够取得良好的加工效果。
Vibration drilling possess the special function of reducing chatter vibration, thus achieving a good drilling effects.
实验表明，这种麻花钻的轴向力较普通麻花钻降低40%左右，扭矩降低20%左右，是一种切削力小、能耗低的麻花钻。
Experimental results show that the thrust of such a drill is decreased by about 40% as compared with that of a standard drill and the torque by about 20%.
特点：FPC加工专用钻头，切削锋利，能有效抑制毛刺和钻污的产生。
Features: With sharp cutting teeth for preventing burr and smear generation. Suitable for machining FPC and PTFE.
将该分类体系应用于车削、钻削和磨削加工，表明切削运动-刀具切削刃毛刺分类体系定义明确、完整。
And the application results of the new classification system of the burrs in turning, drilling and grinding show many good characteristics.
探讨了获得钻削碳纤维复合材料高质量孔的两个关键因素：保持钻头切削刃的良好锋利性和采用高的钻削速度。
Two key factors for drilling high quality holes of carbon fibre reinforced plastics, which are to keep the fine sharpness of the cutting lip of the drill and to use high drilling speed are discussed.
螺杆钻具的高转速可以为PD C钻头提高切削速度提供井下动力保障。
High rotate speeds of dynamical drilling tools can improve PDC bit's cutting rates, and also can provide downhole motives.
通过分析长螺旋钻机在切削各类土质时，钻具的角速度与土块运动机理关系，提出确定钻具临界的方法，而工程施工中钻杆的实际转速应大于临界转速，以提高钻机的工作效率。
An analysis related to various kinds of soil cutting by earth auger, this paper puts forward that running speed of frill should be faster than critical speed so as to increase the efficiency of drill.
其目的在于提供一种锯、钻定位准确，使用方便，可减少病人损伤的便携式手术用切削工具。
The tool's objective is to provide a portable surgery cutting tool, which can locate sawing and drilling accurately, and is easy to be operated, reducing the damage to the patient.
根据振动钻削所具有的变速切削特性，提出了振动钻削的变速减振新概念。
According to the property of cutting with fluctuation speed in vibration drilling, a new concept of vibration reduction by cutting with fluctuation speed in vibration drilling is presented.
分析了工件材料、形状不同时，钻尖顶角的大小对麻花钻切削性能及寿命的影响，介绍了麻花钻的钻尖顶角的选择。
This paper analyses that tip Angle of drill bit influences on cutting capability and life of twist drill, when the material and shape of work piece is different.
该模型包括了钻头以及钻削操作的重要特性，即钻头的截面几何特征、螺旋角、转速和钻削过程中产生的切削力。
The model includes of important characteristics of drill bit and drilling operation, i. e. sectional geometrical property of drill, spiral Angle, speed and cutting force created during drilling.
讨论了用虚拟技术对复杂金属切削刀具进行建模的问题，建立了麻花钻、群钻、齿轮滚刀的三维数字模型；
The paper research the problem of bow to build the model of cutter with the design technology of virtual product, and built the 3D models of twist drill, gang drill, gear hob;
讨论了用虚拟技术对复杂金属切削刀具进行建模的问题，建立了麻花钻、群钻、齿轮滚刀的三维数字模型；
The paper research the problem of bow to build the model of cutter with the design technology of virtual product, and built the 3D models of twist drill, gang drill, gear hob;
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