Continuous chip formation in drilling
Continuous chip formation in drilling
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DOI：
10.1016/j.ijmachtools.2005.03.011
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发表时间：
2005-12-01
影响因子：
14
通讯作者：
Stephenson, DA
中科院分区：
文献类型：
--
作者：
Ke, F;Ni, J;Stephenson, DA
在钻井过程中，钢卷连续切屑的形成往往会导致切屑处理问题。研究了连续切屑(螺旋形切屑和串形切屑)的钻屑形成过程。对排屑机构的运动和受力进行了分析。分别建立了预测螺旋切屑和串形切屑的两个模型。这些模型基于切屑在刃口产生的弯曲程度和沟槽的挠曲程度，定性地研究了点角和沟槽螺旋角对平均切屑长度的影响。钻探实验验证了两种模型预测的螺旋和串形切屑长度。(C)2005年由爱思唯尔有限公司出版。
The formation of coil continous chips in drilling often leads to chip disposal problems. This paper investigates the drill chip formation process of continuous chips (spiral chips and string chips). Chip removing motions and forces are analyzed. Two models are developed to predict the spiral and string chip formation, respectively. Based on the level of bending due to the chip generation at the cutting edge and deflection by the flute, these models qualitatively investigate relationship of the point angle and flute helix angle on the average chip length. Drilling experiments validate the chip length for spiral and string chip predicted by both models. (c) 2005 Published by Elsevier Ltd.