LASER MACHINING SYSTEMS AND METHODS

02-10-2018 дата публикации
Номер:
CA0002917563C
Принадлежит: GENERAL ELECTRIC COMPANY, GEN ELECTRIC
Контакты:
Номер заявки: 2917563
Дата заявки: 14-01-2016



A laser machining method includes directing, from an F-theta lens having a long focal length of greater than about 250 millimeters, a laser beam at a non- perpendicular beam tilt angle from an optical axis of the lens having a top-hat profile and a narrow beam divergence angle of between about 1 degree and about 3 degrees towards a workpiece on a stage movable in at least an X-direction and a Y-direction, engaging the directed laser beam with the workpiece disposed in the usable field of view, moving the workpiece and the directed laser beam relative to each other, and removing portions of the workpiece with the directed laser beam to define a machined surface.