F21: Laser Joining for Battery Trays & Application

Solving Porosity Issues in Electric Vehicle Aluminum Battery Tray Production with Laser Hybrid GMAW
The presentation is focused on research completed on the joining of aluminum alloys and structures used in battery tray production for electric vehicles. The information covers the challenges with porosity formation and the testing completed to find a solution using Laser Hybrid GMAW technology.
Wesley Doneth – Fronius USA LLC (wholly owned subsidiary of Fronius International GmbH)

Highly Productive Laser Welding of Battery Trays, Fuel Cells, Hair Pins, Cap-can and Battery Contacts
Welding speeds are often the limit for the productivity of a laser welding station. Laser welding battery trays, particularly 6XXX alloys that require filler wire to prevent hot cracking, the welding speed can be increased by adding an oscillating function and using smaller spots with tactile welding optics. For other battery applications without additional wire such as fuel cells, chillers, busbars, and hairpins. There are developments in a new, very compact scanner device. This pre-focused, very precise scanner head with a fast Z-shifter enables oscillation or “jumps” at a frequency of up to 1 kHz. It is now possible to add and arrange multiple heads (and lasers) to suit the application within one laser station. The talk explains the optics and shows application case studies.
Jason Woolley – Scansonic