| 激光近净成形CBN磨具温度场仿真分析 |
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| 引用本文： | 于天彪,贾闯,于奎东,赵旭峰.激光近净成形CBN磨具温度场仿真分析[J].激光与红外,2019,49(5):523-528. |
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| 作者姓名： | 于天彪 贾闯 于奎东 赵旭峰 |
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| 作者单位： | 东北大学机械工程与自动化学院,辽宁 沈阳 110819;辽宁省大型装备智能设计与制造技术重点实验室,辽宁 沈阳 110819;东北大学机械工程与自动化学院,辽宁 沈阳 110819;辽宁省大型装备智能设计与制造技术重点实验室,辽宁 沈阳 110819;东北大学机械工程与自动化学院,辽宁 沈阳 110819;辽宁省大型装备智能设计与制造技术重点实验室,辽宁 沈阳 110819;东北大学机械工程与自动化学院,辽宁 沈阳 110819;辽宁省大型装备智能设计与制造技术重点实验室,辽宁 沈阳 110819 |
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| 基金项目： | 2018沈阳市科技创新平台项目(No.18006001);中央高校基本科研业务费(No.N170307009)资助 |
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| 摘 要： | 为了探究激光近净成形CBN磨具实验时的温度场分布,用Simufac.Welding对其进行三维建模数值模拟。采用高斯面热源和圆柱体热源组合热源,综合考虑对流、热传导、相变潜热及热物性参数的影响,分析了不同工艺参数下温度场的分布规律,另外进行了实际测温,验证了温度场仿真的可靠性,最后根据剖面显微硬度值分析了激光近净成形加工的急热急冷特征。
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| 关 键 词： | 激光近净成形 组合热源 温度场 显微硬度 |
Temperature field simulation of LENS CBN abrasive tool |
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| YU Tian-biao,JIA Chuang,YU Kui-dong,ZHAO Xu-feng.Temperature field simulation of LENS CBN abrasive tool[J].Laser & Infrared,2019,49(5):523-528. |
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| Authors: | YU Tian-biao JIA Chuang YU Kui-dong ZHAO Xu-feng |
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| Affiliation: | 1.School of Mechanical Engineering and Automation Northeastern University,Shenyang 110819,China;2.Liaoning Provincial Key Laboratory of Large Equipment Intelligent Design and Manufacturing Technology,Shengyang 110819,China |
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| Abstract: | In order to investigate the temperature field distribution of LENS CBN abrasives,three-dimensional modeling numerical simulation was carried out by using Simufac.Welding based on the Gaussian surface heat source and the cylindrical heat source.The influence factors such as convection,heat conduction,latent heat of phase change and thermal properties were considered in the model and the distribution of temperature field under different process parameters was also analyzed.In addition,the actual temperature measurement was carried out to verify the reliability of temperature field simulation.At last,the characteristics of rapid heating and cooling in LENS are analyzed according to the microhardness value of the profile. |
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| Keywords: | LENS combined heat source temperature field microhardness |
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