Robots in Laser Seam Stepper Automated Work Cells

Laser seam stepping is essentially a laser-based stitch welder that uses special optics to position the laser spot for joining the components. Coldwater Machine Company (Coldwater, OH) recently integrated two IPG Photonic laser seam steppers with FANUC R-2000i/165 robots, along with part fixtures and part magazine systems, to join stainless steel components for an appliance manufacturer. These Laser Seam Stepping automated work cells are also very well suited to automotive body-in-white applications and anywhere there is a need for low heat input and good surface finish. “Adding these systems to our capability enables us to offer alternative methods for joining today’s lightweight, high-strength materials,” said Dan Barry, the vice president of sales and marketing at Coldwater.

These systems feature integrated clamping technology with the laser welding taking place inside the pieces being clamped together, providing a Class 1 safety enclosure. Depending on the application, laser seam stepping is an excellent replacement for resistance spot welding and offers the benefits of fast welding speed, repeatability, high productivity and low heat input. And, given the fact there is no need for complex laser-protected housings, these work cells can easily be used on production lines.

Coldwater Machine Company, 911 North 2nd Street, Coldwater, OH 45828-8736, 419-678-4877, www.coldwatermachine.com/laser-systems.