Lay out plate, sheet steel or other heavy metal and mark bending and cutting lines on work piece using protractors, compasses and drawing instruments or templates.
铺设莱板，钢板或其他重金属，用量角器，圆规和绘图工具或模板在工件上标记弯曲和切割线。
After cutting, the cutting slag on the work piece should be cleaned.
切割后，工件上的割渣应清理干净。
The structure, process of work, essential of design and making of one kind of precision cutting die for two-piece on punch press were introduced. Then a practical die structure was given.
介绍了用在冲床上的一种双件精密剪切模的结构、工作过程和设计制造要点，并给出了实用的模具结构。
The cutting modes and the engagement between the cutting edge and work-piece are studied and presented.
分析了球头铣刀的铣削模式和铣削中刀具—工件的干涉过程。
The advantage of this algorithm is that it does not have to discretize the cutting edge, nor does it need the dimensional gridding of the work piece.
该算法的优点在于勿需对刀齿进行离散，也不需对工件进行三维网格划分，通用性好。
The razor processing of the inner hole outer circle and the end face of the work piece can be carried out simultaneously only requiring a cutting tool and two arbors.
只需用一把刀具、二把刀杆就可同时进行工件的内孔外圆和端面的精剃加工。
Dispersion modeling method based on triangle mesh is used to modeling the work-piece and the cutting tools.
以三角面片离散法为基础对刀具和毛坯进行了建模。
Hydraulically-powered work table feeds work piece at a constant speed, and result in optimize cutting performance.
液压驱动工作台送进工件，进给速度无级可调，以保持最佳的切割性能。
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.
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。
According to characteristics of lathe cutting, two gratings are adopted to measure changes of the diameter when work piece being processed, then calculating the diameter.
根据车削加工的特点，采用两个光栅测量工件加工时的外径变化，最后计算出工件直径。
There are different critical speeds with different cutting condition and different matching of cutter and work-piece material.
不同刀具材料与工件材料的匹配在不同切削条件下有不同的临界速度。
If the work piece can be always kept cooling, cutting speed is not a key factor.
如果工件始终能保持冷却，切削速度不算关键。
The machine also has its own heat sources: motors, friction from machine motion, and the cutting action of the tool on the work piece.
热力因素：来自内部和外部的热量是床身变形的主要原因。
The machine also has its own heat sources: motors, friction from machine motion, and the cutting action of the tool on the work piece.
热力因素：来自内部和外部的热量是床身变形的主要原因。
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