Numerical Controlled Two Optical Paths CO_2 Laser Die-Cutting Technology  

作　　者：王萌 刘铁根 霍晓飞 许宝忠 张国顺 

机构地区：[1]Key Laboratory of Opto-Electronics Information Technical Science of Ministry of Education, Tianjin University

出　　处：《Transactions of Tianjin University》2010年第4期284-288,共5页天津大学学报（英文版）

基　　金：Supported by by Major State Basic Research Development Program of China ("973" Program, No. 2010CB327800)

摘　　要：A CO2 laser die-cutting system, which does not need die board any more, is a new technique for manufac-turing packing box. Two optical paths, the galvanometer scanning system and the flying optical system, are used to satisfy different processing needs. The scanning system is composed of galvanometer scanning mirrors and F-θ lens. And the flying optical system is driven by two servo motors. This paper presents the software and hardware design of the laser die-cutting system, the difference between the two optical paths, as well as the relationship among the cutting speed, thickness of wrapping paper and laser power. The cutting speed and thickness of wrapping paper are linearly increased by the incremental laser power, while the cutting speed is hyperbolically decreased by the incremental thickness of wrapping paper when the laser power is constant. The amount of incision is reduced by 20% and the processing time by 40% when tested by a low power RF CO2 laser die-cutting system using the optimized program. This tech- nique is also used for the reference of other rapid laser processing systems.A CO2 laser die-cutting system, which does not need die board any more, is a new technique for manufacturing packing box. Two optical paths, the galvanometer scanning system and the flying optical system, are used to satisfy different processing needs. The scanning system is composed of galvanometer scanning mirrors and F-θ lens. And the flying optical system is driven by two servo motors. This paper presents the software and hardware design of the laser die-cutting system, the difference between the two optical paths, as well as the relationship among the cutting speed, thickness of wrapping paper and laser power. The cutting speed and thickness of wrapping paper are linearly increased by the incremental laser power, while the cutting speed is hyperbolically decreased by the incremental thickness of wrapping paper when the laser power is constant. The amount of incision is reduced by 20% and the processing time by 40% when tested by a low power RF CO2 laser die-cutting system using the optimized program. This technique is also used for the reference of other rapid laser processing systems.

关 键 词：laser manufacturing technique laser die-cutting galvanometer scanning system flying optical system 

分 类 号：TG485[金属学及工艺—焊接]