45钢表面微凹腔激光加工工艺  

Research on the Laser Texturing Technology of 45 Steel Surfaces with Micro-cavity

作　　者：杨东燕[1] 袁润[1] 符永宏[1] 华希俊[1] 张宗涛[1] 季伟[1] 

机构地区：[1]江苏大学机械工程学院,江苏镇江212013

出　　处：《机械设计与研究》2011年第6期72-74,87,共4页Machine Design And Research

基　　金：国家自然科学基金资助项目(51175233);江苏省科技支撑计划资助项目(BE2010060);江苏省六大人才高峰(08-B-04);江苏省科技成果转化专项资金资助项目BA2010068

摘　　要：采用"单脉冲同点间隔多次"工艺和"单因素分析法"对45钢进行激光焦点位置、激光功率密度、脉冲重复次数等激光加工工艺参数变化影响激光微造型加工质量的研究。通过此工艺加工的凹腔半径大约为58μm,一个脉冲深度大约为2μm,凹腔圆度好,分布均匀,熔渣少;当激光头距试样加工表面距离为2 mm,激光功率为1.84 W～3.82 W时,重复次数为1～10次时,加工出微凹腔质量最好,重复频率对其影响不大。The technology of single pulse at the same point interval more times and the single factor analysis method are used for researching the influence of laser micro-texturing process parameters on micro-cavity quality of 45 steel, such as laser focus positions, laser power density, pulse repetitional times. The show that the cavity radius on the surface of 45 steel is about 58p, m, the depth of a pulse processing is about 2p, m, and cavity distributes is evenly. At the same time, its roundness is good and its slag is less. When the distance between the laser head and the samples is 2mm, the laser power is 1.84W - 3.82W, and the repetition is 1 - 10 times, the micro-cavity quality will be the best and the has little influence on it.

关 键 词：激光微造型 微凹腔 工艺参数 

分 类 号：TG156.99[金属学及工艺—热处理]