‘Wobbly’ laser system for automotive welding applications to be introduced at K 2016

Describing a new technology as “wobbly” typically is not an endorsement. But according to laser systems developer LPKF (Fürth, Germany), a wobbly laser beam is actually worth celebrating, especially if you’re joining large components for automotive applications. LPKF CEO Lars Ederleh was visibly excited to unveil the new PowerWeld3D 8000 machine and wobbling technology at the recent K 2016 preview for the media in Düsseldorf, Germany. It will be showcased at the company's booth (11/E04) at the K show in October.

Wobbling is a process by which the laser beam moves transversally in relation to the weld path. The technology allows the PowerWeld3D 8000, which will become commercially available in the first half of 2017, to join components as large as 100 x 70 x 40 cm with weld widths ranging from 1 to 5 mm. Welding contours can be altered with the click of a mouse. Height differences, which would otherwise result in varied seam widths, can be automatically managed by adjusting the system’s amplitude. During the quasi-simultaneous process, the beam “wobbles” across the weld several times, creating homogenous temperature distribution, according to LPKF.

“No one else can do this,” enthused Ederleh during the presentation, noting that it has many applications in the automotive field, notably for welding glass roofs and interior lights.

LPKF will showcase construction and sample welds at K 2016, which returns to Messe Düsseldorf in Germany from Oct. 19 to 26.