激光技术2018，Vol.42Issue(2)：271-275,5.DOI:10.7510/jgjs.issn.1001-3806.2018.02.025
水辅助激光无重铸层钻孔Al2O3陶瓷实验研究
Experimental study about water-assisted laser drill on Al2O3ceramics without recast layer
摘要
Abstract
In order to solve the problem that recastation layer can not be eliminated in traditional process, ultrafoot picosecond laser was used to do the drilling experiment of Al2O3ceramics in water medium. Compared with the drilling results in the air,the influences of main parameters such as single pulse energy and scanning frequency on pore size,taper and thickness of ceramic micro pores were analyzed. Interaction mechanism between picosecond laser and Al2O3ceramics and material removal mechanism with different media were analyzed and discussed. The results show that, the diameter of laser drilling in water medium increases by about 35μm, micropore taper reduces to 1.04° and the effect of no reclamation layer drilling can be obtained. The presence of water in the process of laser drilling can cause vacuolization, absorption and transportation. It can effectively prevent the secondary adhesion of erosion material,eliminate re-cast layer and reduce micro-hole taper and improve the quality of micro-porous. The study describes the specific impact of water-assisted laser drilling and deepens the understanding of the mechanism of water-assisted effects.关键词
激光技术/水辅助加工/激光钻孔/Al2O3陶瓷Key words
laser technique/water-assisted machining/laser drilling/Al2O3ceramics分类
信息技术与安全科学引用本文复制引用
周翔,段军,陈航,张菲,白克强,韩小花..水辅助激光无重铸层钻孔Al2O3陶瓷实验研究[J].激光技术,2018,42(2):271-275,5.基金项目
国家自然科学基金资助项目(51475182 （）
51675205) （）
