To meet these challenges, PSA Peugeot Citroën has decided to lay a full-length weld seam on the doors and body reinforcements, rather than taking the traditional approach of performing individual spot welds. PSA uses three TruDisk 6002 lasers and one TruDisk 4002 laser to create the weld seam. Made by TRUMPF, the lasers have power ranges of 6 and 4 kilowatts, respectively.
“This enables us to achieve high body stiffness in our Peugeot 3008,” says Jean-Charles Schmitt, product and process laser manager at PSA. “Compared to conventional spot welds, full-length weld seams in car body manufacturing requires less sheet folding and thickness due to a specific laser design, and thus saves about 5 kilograms of weight per vehicle.”
The four TruDisk lasers used in production supply 10 processing stations, which are powered by a TRUMPF LaserNetwork. Schmitt says the LaserNetwork enables PSA to achieve capacities of almost 100 percent.
“With this network design, PSA does not need any backup laser source,” says Schmitt. “In case of a problem, we can easily switch the whole pool of stations on the three remaining sources, with little production loss.”
For more information on disk lasers, call 860-255-6000 or visit www.trumpf.com.