As an important part of the automobile, the automobile lamp manufactured by the auto lamp mould , its manufacturing process and its effect in practical application are very important to ensure the safety of the automobile while driving. At the same time, car lights can be said to be the most demanding parts in cars, so the requirements for mold design and manufacturing are very high.

The material of the reflector is BMC, which is a very hard material. The gluing method of the front and rear mold steel is 8407 (higher polishing effect is required), and the original material certificate is provided, namely the front mold HRC46-50 and the rear mold HRC44-48.

The front mold (reflective surface) has been polished and oilstone cannot be used. Save the mold on 1000# sandpaper and polish it, and the mold will be ordinary 600#

The CNC emits an intermediate light and then ejects the mold. After flying the mold, the high-speed machine is in place at a time and rotates 20000 revolutions. After assembling all the plastic parts of the mold, use a knife below 3mm to finish them.

BMC product steel cannot be welded, heat treatment process and quality (can go to the material factory for hardening) vacuum heat treatment

There should not be any sharp corners (including bottom holes) on the mold. The R angle should be as large as possible. Before hardening, drill a deep hole to process the heating tube hole (positive value 0.02), and then harden the heating tube. If you buy the heating tube itself, it is minus 0.05 -0.1.

The exhaust port is open to the outside of the mold base, the front mold is exhausted, and the PL surfaces of the front mold and the rear mold are effectively sealed to prevent air from entering. The counterweight needs to open the exhaust slot.

The above are the tips and precautions for making auto reflective part mold .