摘要
为实现对大厚度材料的高质量加工,采用自主研发的水射流红外激光加工系统,研究在不同工作距离下水射流激光对7075铝合金的切割深度、切缝宽度、表面粗糙度的影响规律。结果表明:随着工作距离增加,第一道切深从0.698 mm缩短至0.498 mm,切穿的缝宽度从75.32μm增加至81.85μm,而切深增加速率和表面粗糙度值均呈现先增加后减小的趋势。基于试验结果分析,在工作距离6 mm处可实现深度10.437 mm的7075铝合金打孔加工,孔半径为1.028 mm,平均加工次数35次,为实现大厚度材料的加工奠定了基础。
In order to achieve the purpose of high-quality processing of large thickness materials,the article studied the influence of water-jet laser on the cutting depth,slit width and surface roughness of 7075 aluminum alloy at different work distances by using a self-developed water-jet infrared laser processing system.The results showed that with the increase of working distance,the first cutting depth decreases from 0.698 mm to 0.498 mm and the slit width increases from 75.32μm to 81.85μm,while the cutting depth increase rate and surface roughness both increase first and decrease subsequently.Based on the analysis of test results,7075 aluminum alloy drilling with a depth of 10.437 mm can be realized at a working distance of 6 mm,obtained hole radius is 1.028 mm and the average processing times is 35,which lays an experimental foundation for the realization of large thickness materials processing.
作者
王吉
张文武
张广义
潮阳
WANG Ji;ZHANG Wenwu;ZHANG Guangyi;CHAO Yang(Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201,China)
出处
《电加工与模具》
2021年第5期47-51,共5页
Electromachining & Mould
基金
国家自然科学基金青年基金资助项目(51805525)。
关键词
水射流加工
7075铝合金
切深
打孔加工
water-jet processing
7075 aluminum alloy
cutting depth
drill machining
