Thermal cutting of glass
In contrast to conventional cutting processes, in which micro-fissures form in the break edge, with this process glass can be cut with almost no defects. This is achieved by introducing deliberate thermal stresses into the glass. Local stress fields, which are used to guide a separating crack through the glass with contour precision, are typically generated using laser light. Lasers can apply heat controllably to exactly the right position and with exact timing, which makes them an ideal tool for this task.