Dissimilar Metals Joining (Page 3)

By Henry Cialone President & CEO, EWI Although the who, what, when, and where frequently change, one constant at EWI is the why. Our mission to deliver innovative technological solutions that enhance competitiveness in manufacturing is the why that guides everything we do. We approach that mission in three separate, interrelated steps: Step 1: Identify the best options to solve manufacturing challenges.Step...

Metal matrix composites (MMCs) have always been considered “unweldable,” and have been joined mechanically in the past. Now, however, EWI reports that aluminum MMCs can be joined using friction stir welding, a solid-state joining method. This investigation is discussed in Friction Stir Welding of Metal Matrix Composites, written by EWI Senior Engineer Michael Eff. You...

A standard electric vehicle (EV) automotive battery can be decomposed into cell level, module level, and pack level. A cell mainly includes the anodes and cathodes, a module includes multiple cells, and a pack includes multiple modules. The three most common metal-to-metal joints in a lithium-ion battery pack are foil-to-tab, tab-to-tab, and tab-to-bus. All three...