Coherent debuts fiber technology
Coherent Inc.’s HighLight FL4000CSM-ARM fiber laser enables advanced welding capabilities for high thermal conductivity metals. The laser overcomes limitations such as unstable welds due to welding head wear and a large heat-affected zone caused by ultrasonic or standard fiber laser welding. With the dual beam output (center beam surrounded by a ring beam), the center beam has extremely high brightness, allowing a small spot size that results in high laser intensity that minimizes heating of the material. Together with the pre-heating effect achieved by the ring beam, this significantly improves stability of the melt pool.