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Design of Prepreg Compression Molding for Manufacturing of CFRTP B-pillar Reinforcement with Equivalent Mechanical Properties to Existing Steel Part

  • Jung-Min Lee
  • Chan-Joo Lee
  • Byung-Min Kim
  • Dae-Cheol KoEmail author
Review Paper
First Online:
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Abstract

Prepreg compression molding (PCM) is a well-known process for manufacturing of carbon fiber reinforced thermo-plastics (CFRTP) products with high quality and production rate. However, the design method used for the development of automotive parts has not been clearly presented. In this paper, we propose a process chain that can satisfy the stiffness of existing steel products. First, the CFRTP product of a B-pillar reinforcement to satisfy the bending deformation of an existing product is designed using a structural analysis and genetic algorithms. Next, forming conditions of the product are determined by a forming analysis. To investigate the feasibility regarding the mass production of the PCM process, a rapid heating and cooling system was applied to PCM molds. The heating and cooling times of the molds were calculated using a computational fluid dynamics analysis. Finally, a CFRTP product was fabricated and its bending deformation, dimensional accuracy, and weight were evaluated.

Keywords

Carbon fiber reinforced thermo-plastic (CFRTP) Process chain B-pillar Reinforcement Prepreg compression molding (PCM) 
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Notes

Acknowledgement

This study was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2019R1A5A6099595), the Korea government (MOE) (NRF-2018R1D1A3B07049114) and the Small and Medium Business Administration of Korea (SMBA) grant funded by the Korea government (MOTIE) (No. S2522059).

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Copyright information

© Korean Society for Precision Engineering 2019

Authors and Affiliations

  • Jung-Min Lee
    • 1
  • Chan-Joo Lee
    • 2
  • Byung-Min Kim
    • 3
  • Dae-Cheol Ko
    • 4
    Email author
  1. 1.PNU-IFAM JRC, Pusan National UniversityBusanRepublic of Korea
  2. 2.Dongnam Regional DivisionKorea Institute of Industrial TechnologyJinju-SiRepublic of Korea
  3. 3.Division of Precision and Manufacturing SystemsPusan National UniversityBusanRepublic of Korea
  4. 4.Graduate School of Convergence SciencePusan National UniversityBusanRepublic of Korea

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