首页|激光辅助切削CNTs/AL的数值模拟及参数优化

激光辅助切削CNTs/AL的数值模拟及参数优化

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针对碳纳米管铝基复合材料(CNTs/AL)加工过程中加工性差、刀具磨损大等特点,提出采用激光辅助加工的方法进行改善.使用ABAQUS有限元仿真软件进行,对CNTs/AL复合材料的表面损伤形式、亚表面残余应力分布及切削力进行仿真研究,以完成对激光辅助加工CNTs/AL的可行性验证.基于响应曲面实验分析切削力与加工参数的关系,并建立了拟合程度良好的切削力模型.结果表明,使用激光辅助加工可以有效减小切削力和表面质量,平均切削力降低34%,但会稍微增大残余应力;3 个工艺参数对切削力影响强弱依次为:激光功率、切削速度和切削深度.
Numerical Simulation and Cutting Force Optimization of Laser-Assisted Cutting Carbon Nanotube Aluminum Matrix Composites
Aiming at the poor machinability and large tool wear during the processing of carbon nanotube aluminum matrix composites(CNTs/AL),a laser assisted processing method was proposed to improve the process.ABAQUS finite element simulation software was used to conduct simulation studies on the surface damage forms,sub-surface residual stress distribution and cutting forces of CNTs/AL composites,in order to complete the feasibility verification of laser-assisted processing of CNTs/AL.The relationship between cutting force and machining parameters is analyzed based on response surface experiment,and a cutting force model with good fitting degree is established.The results show that the laser assisted machining can effectively reduce the cutting force and surface quality,the average cutting force is reduced by 34%,but the residual stress is slightly increased.The influence of three process parameters on the cutting force is as fol-lows:laser power,cutting speed and cutting depth.

finite elementlaser-assisted cuttingaluminum matrix compositescutting force

刘佳溢、高奇

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辽宁工业大学机械工程与自动化学院,锦州 121000

有限元 激光辅助加工 铝基复合材料 切削力

辽宁省自然科学基金

2022-MS-375

2024

组合机床与自动化加工技术
大连组合机床研究所 中国机械工程学会生产工程分会

组合机床与自动化加工技术

CSTPCD北大核心
影响因子:0.671
ISSN:1001-2265
年,卷(期):2024.(3)
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