Honda’s new technology to Join Steel and Aluminum reduces vehicle weight to improve fuel economy
Honda today announced that it has newly developed a technology to join steel and aluminum and applied it to enable adoption of aluminum for an outer door panel, which has conventionally been made of steel. To join together the dissimilar metals of steel and aluminum, the simultaneous establishment of several different technologies was required such as technologies to prevent corrosion (electrical corrosion) and thermal deformation caused by the different expansion rates of steel and aluminum.
The new technology contributes to the improvement of fuel economy and dynamic performance of the vehicle by reducing door panel weight by approximately 17% compared to the conventional all-steel door panel. In addition, weight reduction at the outer side of the vehicle body enables to concentrate the point of gravity toward the center of the vehicle, contributing to improved stability in vehicle maneuvering.
Honda will adopt this technology first to the North American version of the all-new Acura RLX, which will go on sale in the United States in March 2013, and will expand application sequentially to other models.