Joining dissimilar materials in battery manufacturing is challenging due to varying thermal properties. In busbar welding, aluminum and copper need to fuse without creating brittle intermetallics or excess porosity, all while meeting tight dimensional tolerances.
This FLOW-3D WELD simulation captures how aluminum and copper mix in the melt pool, how heat distributes through both materials, and how the joint solidifies. This visibility helps engineers avoid intermetallic compounds at the joint interface, spatter from uncontrolled melt pool dynamics, and porosity that degrades both electrical and mechanical performance.
Simulation lets you test parameter combinations (laser power, travel speed, scan path, spot size) before running physical trials, mapping out viable process windows and identifying problem areas early. This significantly reduces iteration cycles when dialing in new processes or scaling from development to production.
Want to learn more about the physics behind busbar welding and see what the industry is doing?
🔅Research paper on laser welding for battery busbars:
sciencedirect.com/science/ar…
🔅IPG Photonics on battery module busbar welding solutions:
ipgphotonics.com/en-us/solut…
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