| 摘要 |
PURPOSE:To enable good cutting especially even for glass, changing internal stress of a thick sheet, having poor flatness or varying plate thickness, by providing incidence of laser beams which are heating sources oblique at a specific angle in cutting a glass article utilizing the laser beams under thermal stress. CONSTITUTION:Laser beams are utilized to cut a glass article under thermal stress. In the method, at least one laser beam is provided to cut the glass article under the thermal stress while obliquely irradiating the glass article so as to provide an incidence angle of the laser beam within the range of 45-85 deg. to the glass surface. |
