Dissimilar Metal Joining of Aluminum Alloys and Steel in the Spot Welding by using Advanced Hot-dip Aluminized Steel Sheet

Nisshin Steel and Kobe Steel have developed a spot welding technique capable of obtaining high joint strength in joining the dissimilar metals of an aluminum alloy and steel by using an advanced hot-dip aluminized steel sheet (advanced HDAS) supplied by Nisshin Steel. This report reveals the results of investigating the spot welding properties in joining dissimilar metals of the advanced HDAS and aluminum alloy. Furthermore, this report presents the results of investigating the long-term durability of the dissimilar metal joint material electrocoated under the accelerated corrosion test.