| 基于FEM的纳米TiN改性金属陶瓷刀具的切削性能研究 |
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| 引用本文： | 何光春. 基于FEM的纳米TiN改性金属陶瓷刀具的切削性能研究[J]. 组合机床与自动化加工技术, 2011, 0(6) |
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| 作者姓名： | 何光春 |
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| 作者单位： | 四川工商职业技术学院,成都,611830 |
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| 摘 要： | 文章以纳米TiN改性金属陶瓷刀具作为研究对象.基于大变形-大应变、增量理论及拉格朗日算法,建立了Cockcroft&Latham断裂分离及磨损准则的有限元模型,并对AISI1045钢进行切削加工模拟.改变刀具角度,得到不同角度纳米TiN改性金属陶瓷刀具切削过程中的主切削力、温度及后刀面磨损变化曲线,模拟结果与相关切削理论比较吻合.结合刀具磨损SEM形貌,简要分析了此刀具磨损机理.文章的研究能够为后期新型刀具材料的研究开辟了新路径,以期到达缩短研制周期,降低成本的目的.
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| 关 键 词： | 有限元 纳米TiN改性TiC基金属陶瓷 数值模拟 Archard磨损模型 |
The Study on Machining of Nano-TiN Modified Cermets Cutters based on FEM |
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| HE Guang-chun. The Study on Machining of Nano-TiN Modified Cermets Cutters based on FEM[J]. Modular Machine Tool & Automatic Manufacturing Technique, 2011, 0(6) |
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| Authors: | HE Guang-chun |
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| Affiliation: | HE Guang-chun(Sichuan Technology and Business College,Chengdu 611830,China) |
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| Abstract: | In this paper,nano-TiN modified TiC-based cermets cutters are taken as object investigated.Based on large deformation-strain,increment theory and Lagrangian equation,to establish machining finite element model of Cochcroft & Latham fracture and Archard wear rule.And AISI 1045 steel is used to simulate the cutting process.And obtain the dominating force/temperature/wear graph of nano-TiN modified cermets cutter by changing rake angle,the simulated results is comparatively in agreement with relevant machining... |
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| Keywords: | FEM nano-TiN modified TiC-based cermets Numerical Simulation Archard model |
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