harsh cutting drill 磨蚀钻井
Vertical Cutting Drill 立式铣钻床
end-cutting core drill 端面钻中心孔的钻头
cutting tool for drill [矿业] 钻机刀具
Based on the basic principle of vibration drilling, its kinematics characteristics was analyzed and the cutting conditions of twist drill were studied.
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。
By means of drill grinding and selection of suitable cutting parameters, the serviceability of drill and surface quality of workpiece are improved.
通过对钻头进行修磨，选择适当的切削参数，可以提高钻头的耐用度和工件的表面质量。
A fixture holds the work during machining operations but does not contain special arrangements for guiding the cutting tool, as drill jigs do.
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。
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