45% SiCp/Al复合材料切削表面对高斯激光吸收规律研究

doi:10.3969/j.issn.1000-1093.2020.05.020

兵工学报 ›› 2020, Vol. 41 ›› Issue (5): 1007-1015.doi: 10.3969/j.issn.1000-1093.2020.05.020

45% SiC_p/Al复合材料切削表面对高斯激光吸收规律研究

孔宪俊¹，王明海¹，王奔¹，郑耀辉¹，王扬²，杨立军²

（1.沈阳航空航天大学机电工程学院，辽宁沈阳 110136; 2.哈尔滨工业大学机电工程学院，黑龙江哈尔滨 150001）

收稿日期:2019-06-27 修回日期:2019-06-27 上线日期:2020-07-17
作者简介:孔宪俊 (1986—)，男，讲师，硕士生导师，博士。 E-mail: kongxianjun.2008@163.com
基金资助:
国家科技部重点基础研究发展计划项目(2018YFB1107603)；辽宁省博士启动项目(20180540039)；沈阳航空航天大学启动基金项目(18YB17)；先进航空发动机结构件数字化加工技术辽宁省科技创新团队项目(LT2016008)；沈阳市先进航空难加工结构数字化制造技术重点实验室项目(1801713)

Reaserch on Absorption of Gaussian Laser for the Cutting Surface of 45% SiC_p/Al Composites

KONG Xianjun¹, WANG Minghai¹, WANG Ben¹, ZHENG Yaohui¹, WANG Yang², YANG Lijun²

（1.School of Mechanical and Electrical Engineering, Shenyang Aerospace University, Shenyang 110136, Liaoning, China；2.School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001，Heilongjiang, China）

Received:2019-06-27 Revised:2019-06-27 Online:2020-07-17

摘要/Abstract

摘要： 为探究45% SiC_p/Al复合材料切削表面状态吸收高斯激光的温度变化规律，根据傅立叶热传导公式及碳化硅颗粒、铝基体的热物性参数，计算得出45% SiC_p/Al复合材料吸收激光后不同相的温度随时间变化规律。利用有限元仿真方法建立激光加热辅助切削45% SiC_p/Al复合材料的温度场有限元预测模型，仿真分析获得激光功率、激光移动速度、激光光斑直径、转速对于激光加热温度场的影响规律，结合切削用量对加热温度的影响规律，建立工件表面切削点处温度的经验公式。基于切削点温度经验公式预测得到的温度场，开展硬质合金刀具和聚晶金刚石刀具的激光加热辅助切削实验研究。通过硬质合金刀具和聚晶金刚石刀具对45% SiC_p/Al复合材料开展激光加热辅助切削实验研究。结果表明：使用硬质合金刀具开展激光加热车削45% SiC_p/Al复合材料得到的复合材料表面铝/硅元素含量比值达到1.187，对半导体激光的吸收率为0.21；而当使用聚晶金刚石刀具进行激光加热车削获得的切削表面铝/硅元素含量比值为1.047，激光吸收率达到0.23.

关键词: 45%SiC_p/Al复合材料, 表面状态, 激光, 吸收

Abstract: In order to investigate the temperature variation of cutting surface of 45% SiC_p/Al composites during Gaussian laser irradiating, the temperature variations of 45% SiC_p/Al composites at different phases are calculated based on the Fourier heat transfer theory and the thermal physical properties of silicon carbide particles and aluminum matrix. A finite element model (FEM) is developed for predicting the temperature field in LAM of 45% SiC_p/Al composites. The influence laws of laser power, laser scanning speed, laser spot diameter, and rotational speed on the laser heating temperature field were obtained by FEM simulation. An empirical formula for the temperature at the cutting point from the workpiece surface is established based on the influence law of cutting parameters on heating temperature. The laser assisted cutting experiments of carbide stools and polycrystalline diamond (PCD) cutters are made based on the temperature field obtained by the empirical formula for the temperature at the cutting point. Carbide tools and PCD cutters are used for laser assisted cutting experiment on 45% SiC_p/Al composites. The results indicate that the ratio of aluminum to silicon content is only 1.187, and the absorption rate of laser is 0.21. However, the ratio of aluminum to silicon is 1.047, and the absorption of laser is 0.23 when the PCD cutters are used. Key

Key words: 45%SiC_p/Alcomposite, surfacecondition, laser, absorbtion

中图分类号:

TH161⁺.14

孔宪俊，王明海，王奔，郑耀辉，王扬，杨立军. 45% SiC_p/Al复合材料切削表面对高斯激光吸收规律研究[J]. 兵工学报, 2020, 41(5): 1007-1015.

KONG Xianjun, WANG Minghai, WANG Ben, ZHENG Yaohui, WANG Yang, YANG Lijun. Reaserch on Absorption of Gaussian Laser for the Cutting Surface of 45% SiC_p/Al Composites[J]. Acta Armamentarii, 2020, 41(5): 1007-1015.

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45% SiC_p/Al复合材料切削表面对高斯激光吸收规律研究

Reaserch on Absorption of Gaussian Laser for the Cutting Surface of 45% SiC_p/Al Composites

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45% SiCp/Al复合材料切削表面对高斯激光吸收规律研究

Reaserch on Absorption of Gaussian Laser for the Cutting Surface of 45% SiCp/Al Composites

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45% SiC_p/Al复合材料切削表面对高斯激光吸收规律研究

Reaserch on Absorption of Gaussian Laser for the Cutting Surface of 45% SiC_p/Al Composites