玻璃态板材激光裁剪的应用基础

发布时间：2018-08-05 18:22

【摘要】：随着电子信息产业的快速发展,各种液晶显示器的发展速度惊人,因此对超薄、大幅面的玻璃基板的切割质量要求也越来越高。传统的机械切割方法已经没有办法满足人们对超薄玻璃切割质量的要求,而激光切割方法切割超薄玻璃不仅切口光滑平直、无毛刺,并且还能够进行异形切割。但是现有的激光切割设备对加工环境的要求比较高,并且没有高度集成化,无法与现有机床结合在一起形成一条在线玻璃切割设备,既浪费了资源,又没有办法实现工业批量生产。因此本文设计了一款与现有机械玻璃切割机类似的机床与激光器相结合的玻璃激光切割生产线改造的可行性方案。本文通过对现有激光切割玻璃的方法以及现有激光切割玻璃设备现状的总结和研究,自主设计了一台激光与改造机床相结合的集上片、装片、切割、划线、涂层处理为一体的在线激光切割玻璃设备,主要研究了其中激光切割机的设计,选择了玻璃加工的方法并且对本台设备所需要的切割工艺参数进行了实验研究。首先,根据现有在线切割玻璃生产线与激光切割机,自主设计了一台激光器与改造机床相结合的在线激光切割玻璃设备,并且介绍了在线激光切割玻璃设备的功能。重点研究了设备的激光切割机部分,为激光切割机部分的激光器选择了相应的激光器件。其次,为了研究自主设计的激光切割玻璃装置应用在激光设备中的可行性,首先搭建了两种YAG激光加工系统并进行了切割玻璃的工艺实验,分析了激光功率、激光扫描速度、材料表面状态对切割质量的影响,并总结出了激光直线切割玻璃的最佳参数。还分析了两种激光加工装置加工玻璃切口对比,并且验证了YAG激光加工装置的可行性。再次,为了研究光纤激光切割玻璃装置应用在激光设备中可行性,搭建了光纤激光加工系统并进行了玻璃切割的工艺实验,分析了光纤激光切割玻璃的原理以及激光功率、激光扫描速度、材料表面状态对切割质量的影响,还分析了光纤激光装置加工玻璃与YAG激光装置加工玻璃切口的对比,得出光纤激光切割玻璃与YAG激光切割玻璃相比没有优势,YAG激光切割玻璃装置更适合应用在激光设备中。最后,论文对所做的工作进行了总结,并对今后的进一步研究方向进行了展望。
[Abstract]:With the rapid development of electronic information industry, the development speed of various liquid crystal displays is amazing, so the cutting quality of ultra-thin, large-format glass substrate is becoming more and more high. The traditional mechanical cutting method can not meet the requirement of cutting quality of ultra-thin glass, but laser cutting method can not only cut the ultra-thin glass smooth and straight, without burr, but also can cut profiled glass. However, the existing laser cutting equipment has high requirements for the processing environment, and is not highly integrated, and can not be combined with existing machine tools to form an on-line glass cutting equipment, which is a waste of resources. There is no way to achieve industrial mass production. Therefore, this paper designs a feasible scheme of reconstruction of glass laser cutting production line, which is similar to the existing mechanical glass cutting machine, which combines machine tool and laser. In this paper, by summarizing and studying the present methods of laser cutting glass and the present situation of laser cutting glass equipment, we have designed a set of film, mounting, cutting and marking, which combines laser and modified machine tool. In this paper, the design of laser cutting machine is studied, the method of glass processing is selected, and the cutting process parameters of this equipment are studied experimentally. Firstly, according to the existing production line of wire cut glass and laser cutting machine, an on line laser cutting glass equipment combining laser and modified machine tool is designed, and the function of on line laser cutting glass equipment is introduced. The laser cutting machine part of the equipment is studied emphatically and the corresponding laser device is selected for the laser cutting machine part. Secondly, in order to study the feasibility of the self-designed laser cutting glass device in laser equipment, two kinds of YAG laser processing system are set up and the technological experiment of glass cutting is carried out, and the laser power and laser scanning speed are analyzed. The influence of the surface state of the material on the cutting quality and the optimum parameters of laser straight cut glass are summarized. The comparison of two kinds of laser processing devices for glass cutting is also analyzed, and the feasibility of YAG laser processing device is verified. Thirdly, in order to study the feasibility of using the optical fiber laser cutting glass device in the laser equipment, the optical fiber laser processing system is built and the technological experiment of glass cutting is carried out, and the principle and the laser power of the optical fiber laser cutting glass are analyzed. The effects of laser scanning speed and material surface state on the cutting quality are also analyzed. The comparison of glass cutting between optical fiber laser device and YAG laser device is also analyzed. It is concluded that the optical fiber laser cutting glass is more suitable to be used in the laser equipment than the YAG laser cutting glass device. Finally, the paper summarizes the work done, and the future research direction is prospected.
【学位授予单位】：北京工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ171.5

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