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Development of injection molding tooling with conformal cooling channels fabricated by optimal process parameters

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Abstract

Wax patterns can be used in precision casting. Developing a low-cost approach to rapid fabrication of customized wax patterns with complex geometry is an important research issue. In this study, a wax filament with low melting point is developed for fabricating wax patterns using additive manufacturing technology. The optimal process parameters for producing wax pattern were investigated using the Taguchi design method. The results show that the most important control factor affecting the form accuracy of the fabricated wax patterns is the flow of nozzle, followed by print speed. The form accuracy of the fabricated wax patterns has the lower impact for the nozzle temperature and bed temperature. The optimal process parameters for producing wax patterns are nozzle temperature of 64 °C, print speed of 60 mm/s, bed temperature of 40 °C, and flow of nozzle of 100%. An injection molding tooling is fabricated by wax conformal cooling channels fabricated by the optimal process parameters.

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Funding

The authors sincerely acknowledge the financial support from the Ministry of Science and Technology of Taiwan under contracts nos. MOST 106-2221-E-131-010, MOST 106-2221-E-131-011, MOST 105-2221-E-131-012, MOST 104-2221-E-131-026, and MOST 103-2221-E-131-012.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Ming Chi University of Technology, No. 84, Gungjuan Road, New Taipei City, 243, Taiwan

    Chil-Chyuan Kuo & Zheng-Yan You

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  1. Chil-Chyuan Kuo
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  2. Zheng-Yan You
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Correspondence to Chil-Chyuan Kuo.

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Kuo, CC., You, ZY. Development of injection molding tooling with conformal cooling channels fabricated by optimal process parameters. Int J Adv Manuf Technol 96, 1003–1013 (2018). https://doi.org/10.1007/s00170-018-1664-z

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  • DOI: https://doi.org/10.1007/s00170-018-1664-z

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