基于304不锈钢内冷式高压冷却车刀的优化分析
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摘要
针对304不锈钢难切削的加工特点,对车刀进行了优化和仿真分析。优化后的车刀结构使高压冷却润滑液通过刀体从前刀面上的小孔喷出,从而能够冷却车刀刀尖区域、润滑前刀面、冲断冗长切屑、消除切屑堆堵、改善切削状况。COMSOL Multiphysics软件仿真结果表明,优化后的车刀在满足应力强度要求的前提下切削区最高温度大幅降低,显著提高了刀具耐用度,同时工件加工精度和已加工表面质量也得到了提升。
Based on the difficult-to-machine feature of the 304 stainless steel,conducting a optimization and a simulated analysis of turning tool in this paper. The optimized structure of turning tool makes the high pressure cooling lubricant pass through the tool body and eject from a small hole on the rake face,which can cool the tip area of turning tool,lubricate the rake face,thrust the interminable chip,eliminate the chip stacking,improve the cutting condition. The simulation result of COMSOL Multiphysics indicates that the highest temperature in cutting zone of the optimized turning tool is greatly reduced under the condition of satisfying the stress and strength requirement. The optimized turning tool increases the tool durability observably,meanwhile,the machined accuracy and machined surface quality are also improved.
Based on the difficult-to-machine feature of the 304 stainless steel,conducting a optimization and a simulated analysis of turning tool in this paper. The optimized structure of turning tool makes the high pressure cooling lubricant pass through the tool body and eject from a small hole on the rake face,which can cool the tip area of turning tool,lubricate the rake face,thrust the interminable chip,eliminate the chip stacking,improve the cutting condition. The simulation result of COMSOL Multiphysics indicates that the highest temperature in cutting zone of the optimized turning tool is greatly reduced under the condition of satisfying the stress and strength requirement. The optimized turning tool increases the tool durability observably,meanwhile,the machined accuracy and machined surface quality are also improved.
引文
[1]陈日曜.金属切削原理[M].北京:机械工业出版社,2002.
[2]周芳娟. 304不锈钢切削加工表面特性的研究[D].武汉:华中科技大学,2014.
[3]冯光,贾涛,于凯强.一种金属切削装置及其使用方法:中国,106424785[P]. 2017-02-22.
[4]于凯强,郭文亮.金属切削刀具结构优化与仿真分析[J].工具技术,2017,51(6):69-72.
[5]迟晓明,张小栋.高速数控车床刀具热变形的计算分析[J].机械设计,2011,28(11):72-76.
[6]M Putz,G Schmidt,U Semmler. Heat flux in cutting:importance,simulation and validation[J]. Procedia CIRP,2015,31:334-339.
[7]Onyechi,Pius C. Analytical modeling of temperature distribution in metal cutting:finite element approach[J]. International Journal of Engineering Science Invention,2013,2(4):17-33.
[8]M Sivaramakrishnaiah,Nanda Kumar. Modeling of temperature distribution in metalcutting using finite element method[J]. International Journal of Innovations in Engineering and Technology,2014,4(3):66-71.
[9]T Braham Bouchnak,G Germain,P Robert. High pressure water jet assisted machining of duplex steel machinability and tool life[J]. International Journal of Material Forming,2010,3(1):507-510.
[10]M. Kamruzzaman,Nikhil R D. Effect of high-pressure coolant on temperature,chip,force,tool wear,tool life and surface roughness in turning AISI 1060 Steel[J]. Journal of Science,2009,22(4):359-370.
[2]周芳娟. 304不锈钢切削加工表面特性的研究[D].武汉:华中科技大学,2014.
[3]冯光,贾涛,于凯强.一种金属切削装置及其使用方法:中国,106424785[P]. 2017-02-22.
[4]于凯强,郭文亮.金属切削刀具结构优化与仿真分析[J].工具技术,2017,51(6):69-72.
[5]迟晓明,张小栋.高速数控车床刀具热变形的计算分析[J].机械设计,2011,28(11):72-76.
[6]M Putz,G Schmidt,U Semmler. Heat flux in cutting:importance,simulation and validation[J]. Procedia CIRP,2015,31:334-339.
[7]Onyechi,Pius C. Analytical modeling of temperature distribution in metal cutting:finite element approach[J]. International Journal of Engineering Science Invention,2013,2(4):17-33.
[8]M Sivaramakrishnaiah,Nanda Kumar. Modeling of temperature distribution in metalcutting using finite element method[J]. International Journal of Innovations in Engineering and Technology,2014,4(3):66-71.
[9]T Braham Bouchnak,G Germain,P Robert. High pressure water jet assisted machining of duplex steel machinability and tool life[J]. International Journal of Material Forming,2010,3(1):507-510.
[10]M. Kamruzzaman,Nikhil R D. Effect of high-pressure coolant on temperature,chip,force,tool wear,tool life and surface roughness in turning AISI 1060 Steel[J]. Journal of Science,2009,22(4):359-370.