Laser Welding Method, Fuel Cell, and Computer Readable Medium

Abstract

A laser welding method, a fuel cell, and a computer readable medium are disclosed. The laser welding method includes (i) securing the bipolar plate in place and fitting an area to be welded of the bipolar plate, (ii) determining a predetermined trajectory on the area to be welded for an alignment point of a laser welding device, the predetermined trajectory including a starting point and an end point, (iii) moving the alignment point of the laser welding device along the predetermined trajectory from the starting point and activating a laser emitter of the laser welding device, and (iv) turning off the laser emitter prior to the end point of the predetermined trajectory and keeping the alignment point moving along the predetermined trajectory until the end point of the predetermined trajectory is reached. The method and the device according to this disclosure effectively avoid a perforation defect in bipolar plate welding.

Dependencies are inferred from the claim text.