Open Access iconOpen Access

ARTICLE

Three-Dimensional Printing Conformal Cooling with Structural Lattices for Plastic Injection Molding

Suping Shen1,2, Baris Burak Kanbur1,2, Chenlong Wu2, Fei Duan1,2,*

1 Singapore Centre for 3D Printing, Nanyang Technological University, 639798, Singapore
2 School of Mechanical and Aerospace Engineering, Nanyang Technological University, 639798, Singapore

* Corresponding Author: Fei Duan. Email: email

Frontiers in Heat and Mass Transfer 2024, 22(2), 397-415. https://doi.org/10.32604/fhmt.2024.048984

Abstract

The design of three-dimensional printing based conformal cooling channels (CCCs) in injection molding holds great significance. Compared to CCCs, conformal cooling (CC) cavity solutions show promise in delivering enhanced cooling performance for plastic products, although they have been underexplored. In this research, CC cavity is designed within the mold geometry, reinforced by body-centered cubic (BCC) lattice structures to enhance mechanical strength. Three distinct BCC lattice variations have been integrated into the CC cavity: the BCC structure, BCC with cubes, and BCC with pillars. The thermal performances of the BCC lattice-added CC cavity are assessed numerically after experimental validation. To provide feasible solutions from viewpoints of thermal performances, various BCC lattice structure thicknesses are analyzed in the range of 0.8–1.2 mm. Thermal simulation outcomes reveal that thicker lattice structures enhance mechanical strength but simultaneously lead to an increase in cooling time. Upon examining all the proposed CC cavity solutions supported by BCC, the cooling times range from 2.2 to 4 s, resulting in a reduction of 38.6% to 66.1% when compared to conventional straight-drilled channels. In contrast to CCCs, CC cavities have the potential to decrease the maximum temperature non-uniformity from 8.5 to 6 K. Nevertheless, the presence of lattice structures in CC cavity solutions results in an elevated pressure drop, reaching 2.8 MPa, whereas the results for CCCs remain below 2.1 MPa.

Graphic Abstract

Three-Dimensional Printing Conformal Cooling with Structural Lattices for Plastic Injection Molding

Keywords


Cite This Article

APA Style
Shen, S., Kanbur, B.B., Wu, C., Duan, F. (2024). Three-dimensional printing conformal cooling with structural lattices for plastic injection molding. Frontiers in Heat and Mass Transfer, 22(2), 397-415. https://doi.org/10.32604/fhmt.2024.048984
Vancouver Style
Shen S, Kanbur BB, Wu C, Duan F. Three-dimensional printing conformal cooling with structural lattices for plastic injection molding. Front Heat Mass Transf. 2024;22(2):397-415 https://doi.org/10.32604/fhmt.2024.048984
IEEE Style
S. Shen, B.B. Kanbur, C. Wu, and F. Duan "Three-Dimensional Printing Conformal Cooling with Structural Lattices for Plastic Injection Molding," Front. Heat Mass Transf., vol. 22, no. 2, pp. 397-415. 2024. https://doi.org/10.32604/fhmt.2024.048984



cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • 647

    View

  • 226

    Download

  • 3

    Like

Share Link