Researches on physical field evolution of micro-cutting of steel H13 by micron scale ceramic cutter based on finite element modeling
Researches on physical field evolution of micro-cutting of steel H13 by micron scale ceramic cutter based on finite element modeling
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DOI：
10.1007/s00170-014-6751-1
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发表时间：
2015-01
期刊：
影响因子：
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通讯作者：
Hong-jun Hu;Z. Zhai;Yunyang Li;Hao Wang;Junlin Dai
中科院分区：
文献类型：
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作者：
Hong-jun Hu;Z. Zhai;Yunyang Li;Hao Wang;Junlin Dai
研究了1 μm陶瓷刀具对H13钢进行超微切削时的磨损特性。建立了微切削的三维有限元模型，应用了微切削的仿真条件和材料特性。仿真结果表明，X、Z方向的切削力比Y方向的切削力更稳定、更小。切削力波动随切削速度的增加而增大。刀具磨损量随切削速度的增加而增大。微切削过程中刀具/工件的最高温度存在微小差异，偏差值约为10 °C。通过这些研究，可以预测一些微观切削参数的物理场演化，这将有助于预测切削力的变化，刀具磨损和温度的演变。研究结果可为陶瓷刀具微细切削金属时切削速度的选择提供理论依据和实践指导。
The purpose of this study is to investigate the wear characteristics of ceramic cutter with size 1 μm for ultra micro-cutting of steel H13. The three-dimensional (3D) finite element model of micro-cutting has been developed, and micro-cutting conditions of simulation and material properties have been applied. The simulation results show that cutting forces alongXandZdirections are more stable and smaller than the force alongYdirection comparatively. And, the force fluctuation increases with rise of cutting speeds. The cutter wears increase with the rise of cutting speeds. There exist minor differences between maximum temperatures in cutter/workpiece during micro-cutting, and the deviation values are about 10 °C. Through these researches, some physical field evolution of micro-cutting parameters could be predicted, and it could be helpful to predict the variation of cutting force, cutter wears, and temperature evolutions. The obtained results could provide the fundamental and practical guidelines for choices of cutting speeds for the metal micro-cutting by ceramic cutter.