HOUSING, TERMINAL DEVICE, AND PREPARATION METHOD FOR HOUSING

This application provides a housing, a terminal device, and a housing manufacturing method. The housing includes a magnesium-based metal matrix. A first aluminum-based metal layer and a second aluminum-based metal layer are respectively disposed on two sides of the magnesium-based metal matrix, a first transition layer is disposed between the magnesium-based metal matrix and the first aluminum-based metal layer, an appearance layer is disposed on a surface of a side that is of the first aluminum-based metal layer and that is away from the first transition layer, a second transition layer is disposed between the magnesium-based metal matrix and the second aluminum-based metal layer, and an electrical connection layer is disposed on a surface of a side that is of the second aluminum-based metal layer and that is away from the second transition layer. The first transition layer may be used to increase an interface bonding force between the magnesium-based metal matrix and the first aluminum-based metal layer, and the second transition layer may be used to increase an interface bonding force between the magnesium-based metal matrix and the second aluminum-based metal layer. The housing has a light weight, a good look, high wear resistance, high reliability, high strength, high rigidity, good corrosion resistance, and good electrical connectivity.