摘要
板料激光弯曲技术研究季忠，刘庆斌，吴诗春板料激光弯曲技术是一种利用激光束扫描板料表面时形成的厚向温度梯度所导致的热应力来实现板料弯曲成形的方法。其基本原理是［‘］：激光束照射板料上表面某处，则该处在板厚方向产生强烈的温度梯度，由于体积膨胀，板料产生背...
We are the first in China to study the application of emerging laser technology to bending of aluminum plated steel sheet metal.We used several sheet thicknesses:0.6,0.8,1,0,1.2,1.5mm. The experiments were conducted on imported laser cutting machine in a factory in Jinan, Shandong province.All the more important steps in our experiments could be done on this machine.The aluminum plated sheet metal could be bent into useful shapes by means of continuous TEM10 CO2 laser beam without hard dies and external forces. Our test conclusions were all presented in graphical form, but only Figs. 1 and 2 are given in this summary.Fig.1 shows that the bending angle tends to decrease with increasing diameter of laser pot provided that both laser power and scanning velocity remain unchanged.Fig.2 shows that the bending angle becomes smaller with increasing scanning velocity provided that laser power and pot diameter remain unchanged. There are three other conclusions(1)the bending angle of sheet metal is quasi -linearly related to the number of laser beam scannings;(2) in the research region,the bending angle is approximately inversely proportional to the sheet thickness;(3)at the same power density,the angle increases with decreasing scanning velocity.
出处
《西北工业大学学报》
EI
CAS
CSCD
北大核心
1996年第4期645-646,共2页
Journal of Northwestern Polytechnical University
基金
航空基础科学基金
关键词
板料
弯曲
激光束
laser beam,sheet metal,bending
