Up until now, conventional cutting methods by using metal or diamond wheels have been widely in use in numerous glass industries. Along with the market trend towards clean and more sophisticated process, constraints by the traditional methods have been unavoidable. Hence, laser separation is seen as an alternative and breakthrough solution to many and in this paper, an overview on laser separation as a whole is provided in terms of its process theories and its system as process equipment. Also glass application varieties as well as market requirements are discussed.
The laser cutting technology utilizes a laser beam to apply heat to the glass. At first, the glass is heated locally by a CO2 laser beam. The next step is a defined cooling. On account of the quick heating followed by a fast cooling, tensions are caused within the glass. The consequence will be a vertical and smooth fracture along the cutting edge where the tension was induced without any edge chips or micro cracks. Owing these characteristics of the cutting edge, the mechanical strain capacity is increased considerably compared to conventional scribed and broken edges. Post processing like grinding will be reduced or will even become unnecessary. The production costs will be considerably reduced whereas the production quality will be improved simultaneously by the new laser cutting process in connection with the appropriate machines.
Conference Committee Involvement (1)
Laser-Based Micropackaging
25 January 2006 | San Jose, California, United States
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