Challenge:
The main challenge was to achieve a bright and uniform mirror-like surface on the CHMSL photometric lens. The visible surface required strict quality control, as any flow marks, weld lines, sink marks, scratches, polishing marks, or uneven gloss could affect the final appearance. Since this part is a photometric lens, surface clarity and stable optical performance also needed to be maintained during molding.
Solution:
We applied high-precision machining and fine polishing to the mold surface to meet the mirror-finish requirement. The gate layout and cooling system were optimized to improve material flow and reduce surface defects. During mold trials, we fine-tuned the mold temperature, material temperature, injection speed, holding pressure, and cooling time to ensure a stable high-gloss appearance, consistent mirror-like surface quality, and reliable optical performance.
Share your 2D/3D drawing, material requirements, annual volume and project timeline. Our engineering team will review the manufacturability and provide mold solution suggestions.