Dissimilar Metal Welding

Commonly seen in battery manufacturing and battery pack assembly applications, dissimilar metal welding is desirable because metals like aluminum and copper are ideal conductors/tab material, but welding them to stainless steel cans poses a few challenges including:

• Low electrical resistivity
• Different melting temperatures
• Different expansion coefficients
• Different absorption coefficient of laser light
• Incompatible chemistry after welding

New laser welding techniques and laser sources have been identified to overcome these dissimilar metal welding challenges. Contact us for more information and a free evaluation of your sample parts.