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The straightness of an automotive steering rack directly determines the feel, точність, and noise control of a vehicle’s steering system. Starting from technical principles, this article provides an in-depth analysis of the key technical points in straightening S45C steering racks, в тому числі: tackling massive initial deformation challenges (2.5-3мм), achieving high precision TIR (0.1мм) control, measurement difficulties

The straightness of an ejector pin directly impacts the overall lifespan of the mold and the quality of the injection-molded/die-cast parts. Starting from technical principles, this article provides an in-depth analysis of key technical points in straightening slender ejector pins, в тому числі: process method comparison (manual/multi-roll vs. horizontal point straightening), high-precision measurement methods, process parameter optimization