Modeling of cutting forces in trochoidal milling with respect to wear-dependent topographic changes
Modeling of cutting forces in trochoidal milling with respect to wear-dependent topographic changes
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DOI：
10.1007/s11740-021-01060-4
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发表时间：
2021-05
期刊：
影响因子：
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通讯作者：
J. A. Bergmann;Nils Potthoff;T. Rickhoff;P. Wiederkehr
中科院分区：
文献类型：
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作者：
J. A. Bergmann;Nils Potthoff;T. Rickhoff;P. Wiederkehr
航空航天工业使用镍基高温合金，因为它具有很高的强度和耐腐蚀性。为了评估有关刀具磨损的铣削策略，对这些切割操作过程中的力进行预测是至关重要的。这包括确定未变形的切屑厚度。由于工具接触的复杂相互依赖关系，确定这些厚度是具有挑战性的。为了提高未变形切屑厚度的计算精度，采用了一种新的时间离散包络模型对基于几何物理的仿真系统进行了扩展。为了考虑刀具磨损的影响，建立了不同刀具磨损状态下刀具的数字化形貌模型。
The aerospace industry utilizes nickel-based super-alloys due to its high level of strength and corrosion resistance. To evaluate milling strategies regarding tool wear, the prediction of forces during these cutting operations is essential. This comprises the determination of the undeformed chip thickness. Due to the complex interdependencies of tool engagements, the determination of these thicknesses is challenging. A geometric physically-based simulation system was extended by a novel time-discrete envelope model to increase the precision of the calculated undeformed chip thicknesses. In order to take tool wear into account, digitized topographies of cutting inserts in different states of tool wear were modelled.