The new Coherent HighLightTM FL-ARM with Fiber-Fiber-Switch is a high-power (2 - 8 kW), dual fibreoutput laser that can sequentially power two separate workstations or processes. Dual fibre output delivers increased throughput in cost sensitive, high-volume welding applications, particularly in automotive manufacturing, such as welding of doors, hang-on parts, ultra-high strength steel components, and aluminum body frames. Alternately, the second fibre can act as a redundant backup for the first, thus minimising service downtime when required.
HighLight FL-ARM implements power sharing through the use of Coherent’s proprietary Fiber-Fiber-Switch technology. The process fibres themselves utilise Coherent’s unique Adjustable Ring Mode configuration, comprising a dual core delivery fibre which produces a central spot surrounded by another concentric ring of laser light. The power levels in the center and the ring can be independently adjusted on demand (from 1 percent o 100 percent) and switched at a rate 1000 times faster than competing products; it can also be independently modulated. This arrangement provides improved control of keyhole and melt pool stability during the welding process, leading to superior results. Added to this, HighLight FL-ARM employs a multi-stage back reflection immunity system that enhances laser reliability and lifetime, and enables safe processing of highly reflective materials, including brass, copper, and aluminum.
The HighLight FL-ARM with Fiber-Fiber-Switch is the first new product to be introduced by the recently created Coherent Center of Excellence for fibre lasers in Tampere, Finland.