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首页> 外文期刊>Machining Science and Technology >AN EXPERIMENTAL AND FEM STUDY ON DRY TURNING OF ROTOR STEEL 26NiCrMoV145 USING MULTILAYER COATED CEMENTED CARBIDE TOOL
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AN EXPERIMENTAL AND FEM STUDY ON DRY TURNING OF ROTOR STEEL 26NiCrMoV145 USING MULTILAYER COATED CEMENTED CARBIDE TOOL

机译：多层涂层硬质合金刀具对转子转子26NiCrMoV145干转的实验与有限元研究

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摘要

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+Al_2O_3 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.
机译：转子钢26NiCrMoV145由于其独特的性能已广泛应用于航空航天和电力行业。对于在重要场所广泛使用的这种新材料，值得研究其可加工性。通过实验和有限元（FE）仿真研究了使用多层TiCN + Al_2O_3涂层硬质合金刀片对26NiCrMoV145进行高速干车削时的切削力，切削温度和刀具磨损机理。选择正交试验并测量切削力以验证有限元模拟。已对磨损的工具进行了SEM分析，以确定工具的磨损机理。在每种切割速度下都会发现陨石坑磨损和涂层剥落。当切削速度增加时，侧面磨损会变得很光滑。还对模拟切削过程中的刀具应力和温度分布进行了分析，以帮助理解刀具的磨损机理。最后，在考虑材料去除率，切削力和刀具磨损时，建议对切削条件进行优化。

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