From what perspectives can problems with mechanical parts be classified?
Published Time:
2026-08-19
Impurities in raw materials, too high blending ratio of nozzle materials, insufficient drying of raw materials
Raw material stage issues
Impurities in raw materials, too high blending ratio of nozzle materials, insufficient drying of raw materials, wrong material grade selection, and poor dispersion of modified materials (glass fiber/flame retardant).
Problems at the processing and molding stage
Injection molding/CNC/stamping process defects: shrinkage, bubbles, edges, knife marks, deformation, material shortage, weld marks; mold/tooling wear, positioning deviation.
Dimensions and inspection stage issues
Dimensions are out of tolerance, geometric tolerances are unqualified, measurement datum is wrongly selected, and measuring tool errors are detected.
Assembly stage issues
Poor fitting clearance, assembly interference, difficult buckles, loose assembly, and parts scratching and wearing each other.
Finished product use/reliability stage issues
Stress fracture, creep loosening, high and low temperature deformation, aging and yellowing, insufficient impact resistance, and waterproof failure.
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Email: chenhongxieli@dgchmold.cn
Contact: Xiao Shuangxi
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Email: info@dgchmold.cn
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