Nowadays, even a thousand-yuan mobile phone uses a metal body, and the cold touch is more stimulating to the user’s desire to consume. However, although metal phones seem to be similar, their physical structures may vary greatly. Only by grasping the secret behind them can they have the opportunity to “see and be honest”. Cost and attitude There is no doubt that the metal material has a texture far superior to that of plastic (polycarbonate), and it is also the magic weapon to increase the value of the mobile phone. However, there are many ways to give a metal element to a mobile phone. The most common ones are stamping, die casting and integrated CNC. Stamping: The metal sheet style required to press the metal plate out of the outer casing of the mobile phone with a punch. Solid to solid, belonging to material deformation; Die casting: The molten liquid metal is filled into the mold cavity by pressure, cooled, and formed. Liquid to solid, belonging to material molding; CNC: Cutting, drilling and grinding a whole piece of metal through a CNC machine, and finally getting an integrated metal casing. 01 In terms of cost, processing difficulty, process time, physical strength and quality, stamping
