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Optical defects in automotive lighting molds are often misunderstood as surface or polishing issues. This article explains why internal stress formed during molding is usually the real cause, how flow, gate, and cooling decisions shape stress behavior, and why these problems become difficult to correct after steel is cut. Read More

Automotive lighting mold failures rarely start with machining or polishing.

They are usually caused by early engineering misjudgments in optical behavior, structural design, and molding trade-offs.

This article explains where real failure risks come from — and why many problems are already locked in long before steel is cut.

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This article explains how ADAS-related requirements are reshaping aftermarket exterior mold engineering. It focuses on deformation behavior, warpage as a system outcome, and why front-loaded engineering judgment before steel cutting improves repeatability, stability, and transfer readiness in bumper and exterior trim programs. Read More