[ Papers ]

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 29, No. 5, pp.393-399

ISSN: 2508-5107 (Online)

Print publication date 15 Oct 2020

Received 21 Sep 2020 Revised 05 Oct 2020 Accepted 06 Oct 2020

DOI: https://doi.org/10.7735/ksmte.2020.29.5.393

하이브리드 카울크로스멤버 개발에 관한 연구

손동일^a^{, c} ; 최동혁^a ; 황현태^b ; 소상우^b ; 김선경^a ; 정용하^b ; 김대일^c^{, *}

Development of Hybrid Cowl Cross Member

Dong Il Son^a^{, c} ; Dong Hyuk Choi^a ; Hyun Tae Hwang^b ; Sang Woo So^b ; Sun Kyung Kim^a ; Yong-Ha Jeong^b ; Dae Il Kim^c^{, *}

aKBI Dongkook Ind. Co., Ltd
bAutomotive Parts Institute Center, Ulsan Technopark
cSchool of Materials Science and Engineering, University of Ulsan

Correspondence to: ^*Tel.: +82-52-259-2243 E-mail address: dkim84@ulsan.ac.kr (Dae-il Kim).

Abstract

In this study, a hybrid cowl cross member was produced using the extrusion method and through insert injection manufacturing. Adhesion tests were conducted on aluminum bars and composite materials to compare their performance with that of existing steel products. In addition, the deformation of the aluminum bar through injection pressure was analyzed during the injection molding of the insert. The hybrid cowl cross member was completed using the aluminum bar cross-section, considering the minimum range of adhesion and deformation of the aluminum bar. The durability of the developed product was assessed through vibration tests. Finally, the suitability of the developed product was assessed through sled tests after the vehicle was installed.

Keywords:

Cowl cross member, Injection molding, Crash pad, Weight reduction, Sled test, Vibration test

References

Bang, Y. K., Kang, Y. S., Song, M. S., Jeon, Y. H., 2020, Analysis of Welding Conditions and Weld Joints of Advanced High-strength Steel Through Cold-metal Transfer Welding, J. Korean Soc. Manuf. Technol. Eng., 29:12 141-146. [https://doi.org/10.7735/ksmte.2020.29.2.141]
Choi, D. H., Hwang, H. T., Son, D. I., Kim, D. I., 2018, Study of Surface Improvement for Automotive Part by Injection Mold of Electronic Heating, J. Korean Inst. Surf. Eng., 51 40-46. [https://doi.org/10.5695/JKISE.2018.51.1.40]
Choi, D. H., Hwang, H. T., Son, D. I., Kim, D. I., 2019, Improved Surface Characteristics of Automotive Interior Parts Fabricated by Injection Molding Method, J. Korean Inst. Surf. Eng., 52 43-51. [https://doi.org/10.5695/JKISE.2019.52.1.43]
Kwak, S. B., Lee, J. Y., Lee, J. W., 2018, Development of Automotive Cowl Cross Bar with Polymer Composite Material, Proceedings of the Korean Society of Automotive Eng. Spring Conf., 1136.
Son, D. I., So, S. W., Choi, D. H., Kim, D. I., 2019, Bonding Strength changed Insert Pressure of Hybrid Cowl Cross Member, Proceedings of the Korean Society of Automotive Eng. Spring Conf., 1048.
Son, D. I., So, S. W., Choi, D. H., Kim, D. I., 2019, Topology Optimization of Bracket in Cowl Cross Member using DMI, Proceedings of the Korean Society of Automotive Eng. Spring Conf., 921.
Kim, J. H., Son, D. I., Lee, H. Y., Kim, H. W., 2016, A Study on Aluminium-inserted Injection Molding Process of Automobile Cowl Cross Member Parts, Proceedings of the Korean Soc. Manuf. Technol. Eng. Autumn Conf., 153.

Dongil Son

Director at KBI Dongkook Ind. Co., Ltd.His research interest is Manufacturing Process.

E-mail: sdi@dkdsn.com

Donghyuk Choi

General Manager in the Department of Design at KBI Dongkook Ind. Co., Ltd.His research interest is Component Design.

E-mail: cdh@dkdsn.com

Hyuntae Hwang

Senior Researcher at Ulsan Technopark.His research interest is Static Load Test.

E-mail: a9940325@utp.or.kr

Sangwoo So

Senior Researcher at Ulsan Technopark.His research interest is Collision Test.

E-mail: sws@utp.or.kr

Sunkyung Kim

General Manager in the Department of Design at KBI Dongkook Ind. Co., Ltd.His research interest is Injection Molding.

E-mail: ksk@dkdsn.com

Yong-ha Jeong

Researcher at Ulsan Technopark.His research interest is Vibration Test.

E-mail: jeongyh@utp.or.kr

Daeil Kim

Professor in the School of Materials Science and Engineering at University of Ulsan.His research interest is PVD and TCO thin films.

E-mail: dkim84@ulsan.ac.kr