What is the difficulty of mirror polishing for headlight molds? How to solve it?

(1) The first difficulty is the volume of the mold, the lamp mold is generally large. During the process of mold polishing, the mold surface flatness can not meet the standard requirements. Lack of flatness will lead to the refractive index of light are not able to meet the requirements of automotive industry standards, which will affect the safety of driving. If we want to reach the standard, we need to ensure both the surface brightness and flatness and this work quality will be mainly guaranteed by a professional polishing expert with at least 10 years of working experience.

headlight mold

(2) The second difficulty is the mold glossiness and translucency requirements. The most important requirement of a high-quality lamp is translucency, if the translucency is out of the standard, then the car is not able to go on the road. Because the lamp translucency will highly affect the driver's vision. In order to meet high glossiness and translucency requirements the mold costs are always higher than common molds. Most high-quality car makers request certain high-quality steel such as Gröditz, Assab 1.2738, 1.2083,1.2343ESR, NAK80, and S136 imported from German, Japan, or Switzerland. Except for the steel this high requirement also request special polishing tools, precision instruments, and polishing experts with rich experience too.