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首页> 外文会议>Sixth International Conference on Progress of Machining Technology: With Some Topics in Advanced Manufacturing Technology (ICPMT'2002); Sep 10-14, 2002; Xi'an, China >HIGH PRODUCTIVE DIRECT TAPPING BY INTELLIGENT MACHINE TOOLS
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HIGH PRODUCTIVE DIRECT TAPPING BY INTELLIGENT MACHINE TOOLS

机译：通过智能机床实现高生产率的直接攻丝

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摘要

This paper presents methodologies to enhance the productivity and to extend the tool life in direct tapping processes by using the Intelligent Machine Tool. Thrillers-type direct taps, which perform both drilling and contour machining by one tool, require less machining time compared to other types of direct taps. A critical issue is that it is often subject to a large cutting force when the contour machining process starts. The tool breakage is most likely to occur at the beginning of the contour machining process, because the arc length of cutting engagement becomes maximum at this point. To prevent the tool breakage and to enhance that productivity in direct tapping processes, we employ a constant cutting force control method by regulating the feedrate according to the arc length of cutting engagement. Experimental studies are conducted to validate its effectiveness to extend the tool life and shorten the total machining time. Furthermore, a tool life detection method in drilling processes based on the estimated cutting force is also presented.
机译：本文介绍了使用智能机床在直接攻丝过程中提高生产率并延长刀具寿命的方法。与其他类型的直接攻丝相比，使用一种工具执行钻孔和轮廓加工的惊悚型直接攻丝需要更少的加工时间。一个关键的问题是，轮廓加工过程开始时，它经常受到很大的切削力。刀具破损最有可能在轮廓加工过程开始时发生，因为此时切削啮合的弧长最大。为了防止刀具损坏并提高直接攻丝过程中的生产率，我们采用了恒定的切削力控制方法，该方法通过根据切削啮合的弧长来调节进给率。进行了实验研究以验证其有效性，以延长刀具寿命并缩短总加工时间。此外，还提出了一种基于估计切削力的钻削过程中的刀具寿命检测方法。

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