ワイヤ供給によるAl合金のYAGレーザ表面改質

抄録

In order to make a product light, the use of aluminum as a material instead of iron is increasing. It is considered that this tendency will continue from now on. However, aluminum has the faults that the hardness is low and that the surface is easily damaged in comparison with iron-based materials. In this study surface modified layer was formed on the surface of aluminum alloy A5083 by irradiating a YAG laser beam with the wire made from stainless steel supplied. Surface was modified under various conditions in order to obtain high hardness having no crack. As a result, we got the thick modified layer with high hardness on the aluminum alloy. The hardness distribution in the inside of the modified layer was almost uniform.