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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 国际磨粒技术学会(International Committee of Abrasive Technology, ICAT)委员,中国机械工程学会极端制造分会副主任、生产工程分会常务委员、微纳米制造技术分会常务委员,中国机械工程学会生产工程分会磨粒加工技术专业委员会副主任、切削加工专业委员会常委委员、精密工程与微纳技术专业委员会常委委员,中国机械工程学会特种加工分会超声加工技术委员会副主任,中国机械工程学会摩擦学分会微纳制造摩擦学专业委员会常务委员,中国机械工业金属切削刀具协会切削先进制造技术研究会常务理事、对外学术交流工作委员会副主任、切削先进制造技术研究会自动化加工技术与系统委员会副主任。
性别:男
毕业院校:西北工业大学
学位:博士
所在单位:机械工程学院
学科:机械制造及其自动化. 机械电子工程. 航空宇航制造工程
办公地点:机械工程学院7191
电子邮箱:kangrk@dlut.edu.cn
Vapor-melt Ratio in Laser Fine Cutting of Slot Arrays
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论文类型:会议论文
发表时间:2011-01-01
收录刊物:CPCI-S、Scopus
卷号:1353
页面范围:657-662
关键字:Laser fine cutting; Aluminum alloy; Slot array; Vapor-melt ratio; Cutting quality
摘要:In order to improve cut quality for slot arrays, a new method of laser fine cutting under the consideration of the ratio of vapor to melt is presented. Laser cutting of 6063 aluminum alloy sheet, 0.5 mm in thickness, was carried out on a JK701H Nd:YAG pulse laser cutting system. The effects of vapor-melt ratio on kerf width, surface roughness and recast layer were studied which relate cutting qualities. Observation on the cut samples with different vapor-melt ratios (0.687, 1.574, 3.601 varied with laser power increasing, and 1.535, 3.601, 7.661 with decreasing of beam cutting speed) shows that high vapor-melt ratio improves laser cut quality clearly. Kerf width 0.2 mm of smooth area on kerf top area and thickness 2.03 mu m of recast layer are obtained. No dross was found on the kerf bottom and the percentage of the smooth area is up to 40% out of whole kerf side. The research on vapor-melt ratio provides a deeper understanding of laser cutting and improves laser cut quality effectively.