Welding demanding materials

A critical step in many applications is welding copper, thin foils, and dissimilar materials in a scalable solution that delivers the desired production throughput, quality, and cost characteristics. In response, we’ve developed a novel infrared fiber laser technology that overcomes the limitations of other sources. Here, the single-mode center beam option for the ARM fiber lasers is the right choice. This benefits copper welding, in particular, because it provides the power required to readily melt the material, despite its relatively low IR absorption coefficient. In fact, Coherent application specialists have recently discovered the lower infrared absorption of copper is actually an advantage. By allowing the laser to penetrate deeper into the keyhole, the yield is more stable and less turbulent process – the Coherent ARM laser dramatically reduces spatter. You’ll also see it delivers: Higher speed than current green lasers Weld penetration depths that meet production requirements Insensitivity to changes in material surface appearance for a stable process