Development of a New Light-Weight Car Audio Using Polycarbonate/Acrylonitrile-Butadiene-Styrene Copolymer Composite Based Hybrid Material

Seong Ho Jeon, Woo Chun Choi, Tae Hong Park, Heon Mo Kim, Il Eui Jung, Chi Kyoung Baek, Ki Jeong Seo, Byoung Ho Choi

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


Engineering plastics have been applied to automobile components to reduce the weight of an automobile and in essence, improve fuel efficiency. In this study, the application of polycarbonate/acrylonitrile-butadiene-styrene copolymer (PC/ABS) based composite material to the car audio chassis was investigated with respect to the key properties of a car audio chassis mainly through vibration analyses, injection molding analyses and electromagnetic interference shielding effectiveness (EMI SE) tests. A PC/ABS based composite material was designed for replacing carbon steel of current car audio chassis. Before mocking up a prototype of a car audio chassis, two key factors, i.e. injection molding analyses and vibration analyses, were investigated numerically. Next, an actual injection molding of a car audio chassis based on the injection molding analysis results was carried out for various temperature conditions and two types of catapults. The optimum temperature condition and catapult type were determined by observing the distributions of composite fillers of the injection molding chassis microscopically. In addition, base excitation vibration tests were executed to obtain the vibration characteristics of the car audio chassis. Finally, EMI SE of the newly designed car audio chassis was measured to determine whether the injection molding chassis satisfied the EMI SE regulation.

Original languageEnglish
Pages (from-to)85-96
Number of pages12
JournalInternational Journal of Precision Engineering and Manufacturing
Issue number1
Publication statusPublished - 2012 Jan

Bibliographical note

Funding Information:
This research was done by academic-industrial cooperation with LG Electronics and the Department of Mechanical Engineering in Korea University, Seoul, Republic of Korea, and fundamentally supported by LG Electronics, Republic of Korea. The research of polymer and injection molding were done with LG Chem. LTD. The authors would like to acknowledge researchers of LG. Chem. Ltd and LG Electronics for supporting this work successfully. This work was also supported by a Korea University Grant.

Copyright 2021 Elsevier B.V., All rights reserved.


  • CNT
  • Car audio
  • Composite
  • Copolymer
  • EMI
  • Filler
  • Glass fiber
  • Injection molding
  • Light weight
  • Metal fiber
  • PC/ABS

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


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