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激光直接金属沉积工艺能效的田口试验研究

Taguchi experimental investigation on process energy efficiency of laser direct metal deposition

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摘要

为了研究金属激光直接沉积工艺过程中工艺参量对工艺能效的影响, 采用自主研发的HCX60五轴激光复合制造机床开展工艺能效田口试验, 并对其结果进行了信噪比分析、极差分析以及方差分析, 得到激光功率、送粉量、扫描速率、提升量以及搭接率对工艺能效的影响主次关系, 提出了工艺因素优化组合。结果表明, 送粉量对工艺能效的影响最为显著, 最佳参量组合为激光功率P=500W, 送粉量f=28g/min, 扫描速率v=600mm/min,提升量h=0.6mm和搭接率λ=30%。这为研究增材制造工艺参量对工艺能效的作用及影响规律提供了理论借鉴和实验基础。

Abstract

In order to study influence of direct metal laser deposition process parameters on the process efficiency, a self-developed HCX60 five-axis laser composite manufacturing center was adopted to carry out Taguchi experiment for process efficiency. Signal-to-noise ratio analysis, range analysis and variance analysis were used to analyze the results. The influence of laser power, powder feed rate, scanning rate, lifting capacity and overlap ratio on process energy efficiency was discussed and the optimum combination of technological factors was put forward. The results show that, powder feeding rate is the most significant parameter for the process of energy efficiency. The best combination of parameters is laser power P of 500W, powder feeding rate f of 28g/min, scanning speed v of 600mm/min, lifting capacity h of 0.6mm and overlap rate λ of 30%. The research provides theoretical and experimental grounds for further studying the effect of process parameters on process energy efficiency and its influence rule.

Newport宣传-MKS新实验室计划
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中图分类号:TG156.99

DOI:10.7510/jgjs.issn.1001-3806.2018.01.005

所属栏目:激光与光电子技术应用

基金项目:国家自然科学基金资助项目(51605156)

收稿日期:2017-03-21

修改稿日期:2017-05-15

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袁丰波:湖南大学 汽车车身先进设计制造国家重点实验室, 长沙 410082湖南大学 机械与运载工程学院, 长沙 410082湖南大学 智能激光制造湖南省重点实验室, 长沙 410082
韦海英:湖南大学 汽车车身先进设计制造国家重点实验室, 长沙 410082湖南大学 机械与运载工程学院, 长沙 410082
黄 矗:湖南大学 汽车车身先进设计制造国家重点实验室, 长沙 410082湖南大学 机械与运载工程学院, 长沙 410082湖南大学 智能激光制造湖南省重点实验室, 长沙 410082
吴家柱:湖南大学 汽车车身先进设计制造国家重点实验室, 长沙 410082湖南大学 机械与运载工程学院, 长沙 410082湖南大学 智能激光制造湖南省重点实验室, 长沙 410082
张 屹:湖南大学 汽车车身先进设计制造国家重点实验室, 长沙 410082湖南大学 机械与运载工程学院, 长沙 410082湖南大学 智能激光制造湖南省重点实验室, 长沙 410082

联系人作者:张屹(zy@hnu.edu.cn)

备注:袁丰波(1991-), 男, 硕士研究生, 现主要从事智能激光复合制造的研究。

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引用该论文

YUAN Fengbo,WEI Haiying,HUANG Chu,WU Jiazhu,ZHANG Yi. Taguchi experimental investigation on process energy efficiency of laser direct metal deposition[J]. Laser Technology, 2018, 42(1): 24-29

袁丰波,韦海英,黄 矗,吴家柱,张 屹. 激光直接金属沉积工艺能效的田口试验研究[J]. 激光技术, 2018, 42(1): 24-29

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