Chip Load Kinematics in Milling With Radial Cutter Runout
Chip Load Kinematics in Milling With Radial Cutter Runout
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DOI：
10.1115/1.2803631
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发表时间：
1996-02
期刊：
影响因子：
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通讯作者：
J. Wang;S. Liang
中科院分区：
文献类型：
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作者：
J. Wang;S. Liang
建立了考虑刀具跳动的铣削过程切屑载荷和切屑体积分布的解析模型。对切屑载荷运动学的理解对铣削力的预测、对所产生的表面光洁度和刀具振动的评估以及对用于多齿加工过程监测和控制的跳动的识别具有很强的影响。在这项研究中，切屑厚度的表达式解析地建立在槽数，刀具偏移位置和偏移量的每齿进给量的比率。通过对切削区域和切屑载荷图的说明，讨论了跳动几何形状、进给速度和切削深度对整个切屑生成动作的影响。明确的解决方案的入口和出口角度制定的上下文中的铣削参数和配置。实验测量所产生的芯片体积从加工用偏置刀具相比，从芯片厚度表达式制定的分析模型。此外，平均芯片厚度的预测，结合的入口/出口角的解决方案的芯片体积模型的基础上，进行比较，在文献中报道的数据进行有效性评估。
This paper presents the analytical modeling of chip load and chip volume distribution in milling processes in the presence of cutter runout. The understanding of chip load kinematics has a strong bearing on the prediction of milling forces, on the assessment of resulting surface finish and tool vibration, and on the identification of runout for multi-toothed machining process monitoring and control. In this study a chip thickness expression is analytically established in terms of the number of flutes, the cutter offset location and the ratio of offset magnitude to feed per tooth. The effects of runout geometry, feed rate, and depths of cut on the overall chip generating action is discussed through the illustration of cutting regions and chip load maps. Explicit solutions for the entry and exit angles are formulated in the context of milling parameters and configuration. Experimental measurement of the resulting chip volumes from machining with an offset cutter is compared to an analytical model formulated from the chip thickness expression. Additionally, an average chip thickness prediction, based on the chip volume model in combination with the entry/exit angle solutions, is compared to data reported in the literature for validity assessment.