Copper Welding with High‐Brightness Fiber Lasers

Abstract

The consumer electronics and automotive industry are the driving forces for an increased use of copper in industrial processes and products. With the development of new battery technologies and higher battery capacities, the demands to the joining technologies are increasing. While soldering is still the state of the art for low power applications in consumer electronics, it is necessary to apply welding technology whenever high currents have to be transmitted, or high and dynamic loads stress the joints. The e‐mobility sector is especially driving this trend and the automotive industry and its suppliers are looking for robust and efficient processes for high volume production in electrical power storage and transmission line applications.