AN EXPERIMENTAL AND FEM STUDY ON DRY TURNING OF ROTOR STEEL 26NiCrMoV145 USING MULTILAYER COATED CEMENTED CARBIDE TOOL
AN EXPERIMENTAL AND FEM STUDY ON DRY TURNING OF ROTOR STEEL 26NiCrMoV145 USING MULTILAYER COATED CEMENTED CARBIDE TOOL
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DOI：
10.1080/10910344.2011.580702
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发表时间：
2011-04
影响因子：
2.7
通讯作者：
Ming Chen;Junli Li;Guoqiang Guo
中科院分区：
文献类型：
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作者：
Ming Chen;Junli Li;Guoqiang Guo
转子钢26 NiCrMoV 145因其独特的性能而广泛应用于航空航天和电力工业。对于这种在重要场合得到广泛应用的新材料，其加工性能值得研究。通过试验和有限元模拟研究了TiCN + Al2O3涂层硬质合金刀片高速干车削26NiCrMoV145时的切削力、切削温度和刀具磨损机理。选择正交试验和切削力的测量，以验证有限元模拟。对磨损的刀具进行了SEM分析，以确定刀具磨损机理。在不同的切削速度下均出现了凹坑磨损和涂层剥落现象。随着切削速度的增加，后刀面磨损趋于平缓。分析了模拟切削过程中刀具的应力和温度分布，以帮助理解刀具磨损机理。最后，综合考虑材料去除率、切削力和刀具磨损等因素，提出了切削条件的优化方案。
Rotor steel 26NiCrMoV145 has been widely employed in aerospace and power industry because of its unique properties. As to this new material that is used widely in important places, it is worth studying its machinability. An experiment and finite element (FE) simulation has been carried out to study the cutting forces, cutting temperature and tool wear mechanism during high speed dry turning of 26NiCrMoV145 using multilayer TiCN + Al2O3 coated carbide inserts. The orthogonal test was chosen and cutting forces were measured to validate the FE simulations. SEM analysis has been carried out on worn tools to determine the tool wear mechanism. Crater wear and coating peeling could be found at every cutting speed. Flank face wear appears smooth when cutting speed increases. Analyses of tool stress and temperature distribution during simulated cutting process were also taken out to help in understanding tool wear mechanism. At last, an optimization of the cutting conditions was suggested when considering material remove rate, cutting forces and tool wear.