METHOD AND APPARATUS FOR LASER WELDING

摘要

The present invention relates to a system for welding a joint edge of a first sheet metal component to a joint edge of a second sheet metal component to form a weld joint. The system includes a gauging sub-system which positions each joint edge at a desired distance from a weld line. A sub-system then clamps the sheet metal components in this relationship. A joint edge butting sub-system then moves the clamped components toward each other until the edges are in butting relationship. A laser welding sub-system then moves a welding head along the butted edges to form the weld joint. The laser beam, which forms the weld joint, passes through an air shield in the welding mechanism so that weld splatter from the welding zone is carried off by an air stream and does not reach the welding head optics. The invention also relates to a method of laser welding.