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Effect of Conformal Cooling Channels on Warpage Improvement and Mold Strength of Multilayer Thin-Shell Parts
Yuan-Ping Luh a, Chien-Liang Chen b and Chen-Shan Tsai a
aGraduate institute of manufacturing technology, National Taipei University of Technology
bCollege of mechanical & Electrical Engineering, National Taipei University of Technology
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Abstract:
This study explores the application of Conformal cooling channels (CCCs) to reduce warp-age in multilayer thin-shell injection-molded parts while maintaining mold strength. Using a hard disk deflector as a case study, five CCC diameters (0.6–1.4 mm) were analyzed through mold flow and structural simulations. Results show that CCCs effectively reduce warpage to within 0.025 mm, with 0.8 mm and 1.0 mm achieving the lowest warpage of 0.01 mm. Although only the 0.6 mm design meets conventional mold strength guidelines, all designs withstand cavity pressure without plastic deformation. The study demonstrates that CCCs can be effectively imple¬mented in thin, compact molds beyond traditional design limitations.
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Keywords: Conformal Cooling Channels, Warpage, Multilayer Thin Shell Parts, Mold Strength
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©
2026
CSME , ISSN 0257-9731
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