摘要
利用热力学方程进行了激光切割AZ31B镁铝合金的仿真实验。激光切割速度为8mm·s-1时,试样具有较好的切割质量。开展了光纤激光切割1.0mm厚AZ31B镁铝合金的工艺实验,获得了激光功率、切割速度、离焦量对激光切割质量影响的单因素实验数据,并提出了三因素正交实验方案。1.0mm厚AZ31B镁铝合金激光切割的优化工艺参数为:激光功率120W,切割速度0.5m·min^(-1),离焦量1.2mm,与理论计算值基本一致。
The simulation experiment on the laser cutting of the AZ31B magnesium aluminum alloys is conducted based on the thermodynamic equations and it is found that the cutting qualitZ of samples is better when the laser cutting speed is 8 mm· s-1. The process experiment on the laser cutting of the 1.0-mm-thick AZ31B magnesium aluminum alloys is carried out and the single-factor experimental data related to the effects of laser power, cutting speed and defocusing is obtained. The scheme of three-factor orthognal exper（ment is also proposed. The optimum process parameters for a laser cutting of the 1.0-mm-thick AZ31B magnesium aluminum alloys are a laser power of 120 W, a cutting speed of 0.5 m · min-1 , and a defocusing of 1.2 mm, which are basically consistent with the theoretical calculation values.
作者
王洪建
李永亮
李平
Wang Hongjian1,2, Li Yongliang1, Li Ping1,2(1 Chongqing Key Laboratory of Manufacturing Equipment Mechanism Design and Control, Chongqing Technology and Business University, Chongqing 400067, China ; 2 National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University Chongqing 400067, China)
出处
《激光与光电子学进展》
CSCD
北大核心
2018年第10期211-218,共8页
Laser & Optoelectronics Progress
基金
重庆市教育自然科学项目(KJ1600633)
重庆工商大学科研平台项目(KFJJ2016031
KFJJ2017052
KFJJ2017053)
关键词
激光技术
激光切割
正交实验
热力学方程
切割质量
laser technique
laser cutting
orthogonal experiment
thermodynamic equation
cutting quality
