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材料表面粗糙度对激光吸收率影响的研究

Influence of surface roughness on laser absorptivity

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摘要

为了在激光热处理过程中能更好地控制工件温度,并为激光热处理的数学模拟提供更为准确的激光吸收率数据,研究了材料表面粗糙度对激光吸收率的影响原理,等效处理了材料表面轮廓线,建立了数学模型,采用集总参量法测得激光的吸收率,得到的激光吸收率与理论公式计算所得的光吸收率相吻合。结果表明,所建立的模型可以准确地描述材料表面粗糙度对激光吸收率的影响,更有利于激光热处理各项参量的控制。

Abstract

The influence of surface roughness on laser absorptivity was studied to better control the temperature of workpiece during laser heat treatment process and supply more precise calculate model of laser absorptivity for mathematical simulation. The surface outline of material was equivalent treated,then mathematical model was set up. The laser aborptivity was measured bylumped parameter method,which was agreed with the value of laser absorptivity calculated by theoretical formula. The results indicated that the mathematical model could exactly describe the influence of surface roughness on laser absorptivity.

Newport宣传-MKS新实验室计划
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中图分类号:TG156.99

所属栏目:激光与光电子技术应用

收稿日期:2007-08-22

修改稿日期:2008-03-19

网络出版日期:0001-01-01

作者单位    点击查看

陈君:浙江工业大学 机械制造及自动化教育部重点实验室,杭州 310014
张群莉:浙江工业大学 机械制造及自动化教育部重点实验室,杭州 310014
姚建华:浙江工业大学 机械制造及自动化教育部重点实验室,杭州 310014
傅纪斌:浙江工业大学 机械制造及自动化教育部重点实验室,杭州 310014

联系人作者:姚建华(laser@zjut.edu.cn)

备注:陈君|男|硕士研究生|主要从事材料的激光吸收及激光与材料相互作用方面的研究工作|(1982-)

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引用该论文

CHEN Jun,ZHANG Qun-li,YAO Jian-hua,FU Ji-bin. Influence of surface roughness on laser absorptivity[J]. Laser Technology, 2008, 32(6): 0624

陈君,张群莉,姚建华,傅纪斌. 材料表面粗糙度对激光吸收率影响的研究[J]. 激光技术, 2008, 32(6): 0624

被引情况

【1】陈君,张群莉,姚建华,傅纪斌. 外加电场对金属材料激光吸收率的影响. 激光技术, 2009, 33(2): 121-123

【2】肖婧,何衡湘,夏惠军,贾静. 长脉冲与连续激光联合辐照铝合金的温度场仿真. 中国激光, 2012, 39(11): 1103002--1

【3】李扬,胡绳荪,申俊琦. 紫铜与316L不锈钢脉冲激光焊微观组织及力学性能. 中国激光, 2014, 41(7): 703008--1

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