油井管螺纹切削加工中产生的毛刺会直接影响螺纹检验的准确性和螺纹连接质量。
The accuracy of thread inspection and quality of threaded connection will be influenced by burrs resulted from the thread cutting process of tubing and casing.
探讨了螺纹的数控加工工艺。阐述了切削用量选择、走刀方式确定、数控程序编制等内容。
This paper discusses the problem about NC manufacturing process for the thread analyzes cutting parameters selection, feed pattern determination, NC programming, and so on.
本文首先介绍了螺纹数控切削的编程方法，并就其对加工误差的影响进行了分析，最后根据实际工作总结出数控车床螺纹切削编程及加工时的注意事项。
This paper discussed the methods about cutting thread on nc Lathe. The cutting errors was analyzed. The program about cutting thread and the notices in cutting process were concluded.
对于只具备普通螺纹切削功能的数控车床，一般来说不能加工变螺距的螺纹。
It is difficult to machine the variable pitch of screw part on the CMC lathe without variable pitch cutting faction.
文章基于3.5轴数控铣床，利用螺旋线展开的平面曲线编程，分层切削，加工出变螺距螺纹；
Programming by the plane curve unwrapped from the helix curve and cutting layer by layer, we created the variable pitch screw on the 3.5 axis NC milling.
攻丝是切削加工中广泛使用的一种内螺纹加工方法。
铝基复合材料内螺纹攻丝属封闭切削，加工难度大，丝锥极易折断。
It is very difficult to tap inside Aluminum matrix composites. The process is difficult to operate due to its close condition, and the tap is subject to breaking.
铝基复合材料内螺纹攻丝属封闭切削，加工难度大，丝锥极易折断。
It is very difficult to tap inside Aluminum matrix composites. The process is difficult to operate due to its close condition, and the tap is subject to breaking.
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