调整或更换工装、成型工具（含螺纹刀具）后加工的第一件产品。
The first article after the tooling or forming cutter (thread cutter) is adjusted or replaced.
主要产品有齿轮刀具、拉削刀具、孔加工刀具、铣削刀具、螺纹刀具等六大类产品。
Its main products include such six kinds of products as gear cutter, broaching cutter, hole drilling cutter, milling cutter, threading cutter and etc.
适用于成型磨削，刀具，量具，螺纹工件、仪表零件的精密磨削，及其它各种高光洁度的表面加工。
For form grinding, precision grinding of cutters, measuring tools, instrument parts, thread grinding and fine surface finish grinding.
同时，这些刀具的平面角必须始终与螺纹形状的平面角保持一致。
Also, the plane angles of these tools must always be identical to those of the thread forms.
使用的刀具外形必须正好与要切削螺纹的轮廓一致，即三角形刀具必须用于三角形螺纹等等。
The form of the tool used must exactly coincide with the profile of the thread to be cut, i. e. , triangular tools must be used for triangular threads, and so on.
在切削实验中，可对切屑厚度、刀具磨损及螺纹等的形貌进行观察并测量其尺寸。
In cutting experiments, it can be observed and measured that the chip thickness, the tool wear, the screw thread teeth, and so on.
常见的共轭曲面包括齿轮的齿面、空间凸轮的工作面和螺旋面等，其中螺旋面被广泛应用于螺纹、蜗杆、螺杆泵及金属切削刀具等领域。
The common conjugate surface includes tooth surface of gear, working surface of solid CAM, helicoidal surfaces existing in spiral burr, worm, chip flute of cutters, and so on.
前言：钢质曲轴螺孔攻丝加工中经常出现螺纹烂牙、中径扩大等问题，且刀具寿命较短。
During tapping in steel crankshafts, the most commonly encountered problems are "mess tooth" and oversize thread, additionally the tap life is very low.
钛合金材料由于存在硬度高、强度大等特点，在进行内螺纹加工过程中刀具经常损坏。
With features of superhigh hardness and strength, the cutting tool is broken down frequently when female thread was processed using titanium alloy.
通过改进刀具角度及操作方法，提高了加工效率，解决了内螺纹加工的难点。
On the basis of improving cutting-tool angle and operating method, the machining efficiency is raised, the difficulties in processing inside whorl are also solved.
多马刀具公司隶属于山特维克集团，擅长制造高质量的圆柄类整体硬质合金和高速钢刀具，例如钻头、丝锥、铣刀、铰刀和螺纹铣刀等。
Part of the Sandvik Group, Dormer's expertise lies in the manufacture of superior round tools - drills, taps, cutters, reamers and thread milling cutters - in Solid Carbide and HSS.
多马刀具公司隶属于山特维克集团，擅长制造高质量的圆柄类整体硬质合金和高速钢刀具，例如钻头、丝锥、铣刀、铰刀和螺纹铣刀等。
Part of the Sandvik Group, Dormer "s expertise lies in the manufacture of superior round tools - drills, taps, cutters, reamers and thread milling cutters - in Solid Carbide and HSS."
多马刀具公司隶属于山特维克集团，擅长制造高质量的圆柄类整体硬质合金和高速钢刀具，例如钻头、丝锥、铣刀、铰刀和螺纹铣刀等。
Part of the Sandvik Group, Dormer "s expertise lies in the manufacture of superior round tools - drills, taps, cutters, reamers and thread milling cutters - in Solid Carbide and HSS."
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