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Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 27 , No. 1

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[ Article ]
Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 27, No. 1, pp. 46-56
Abbreviation: J. Korean Soc. Manuf. Technol. Eng.
ISSN: 2508-5107 (Online)
Print publication date 15 Feb 2018
Received 03 Nov 2017 Revised 29 Dec 2017 Accepted 08 Jan 2018
DOI: https://doi.org/10.7735/ksmte.2018.27.1.46
자동차 엔진용 Thrust Washer 생산을 위한 판형 소재의 단조 공정기술개발 및 이를 위한 유한요소해석
강봉기^a ; 윤중현^a ; 정주노^a ; 정현환^a^{, *} ; 이원석^b ; 한수희^b ; 최원만^b


Development of A Plate-type Cold Forging Manufacturing Process and Finite Element Analysis for Producing Thrust Washer of Automotive Engine
Bongki Kang^a ; Joonghyun Yoon^a ; Joono Cheong^a ; Hyunhwan Jeong^a^{, *} ; Wonseok Lee^b ; Suhee Han^b ; Wonman Choi^b
aDepartment of Electro-Mechanical System Engineering, Korea University, 2511, Sejong-ro, Jochiwon-eup, Sejong 30019, Korea
bDoowon Industry, 130, Eungam 2-gil, Yeondong-myeon, Sejong 30067, Korea
Correspondence to : ^Tel.: +82-44-860-1448, Fax: +82-44-865-1820, E-mail address:*hyunhwanjeong@korea.ac.kr (Hyunhwan Jeong).



Funding Information ▼ Ministry of Trade, Industry and Energy R0005558 Korea Institute for Advancement of Technology R0005558

Abstract

In this paper, we present a study on the development of the manufacturing process of thrust washers for an automobile. The thrust washers are manufactured using the progressive cold forging method. The proposed progressive cold forging method requires less manufacturing cost and processing time compared with the previous conventional manufacturing method, through the elimination of some cutting and grinding processes. The proposed cold forging method uses the single plate material that is used in multi-step forging process (progressive method). In order to estimate the plastic deformation of the product due to cold forging, we conduct a finite-element analysis and compare the predicted deformation with the experimental results. The effectiveness of the proposed manufacturing process is verified by comparing the simulation and experimental results. Finally, we suggest a new stereotyped design of the single plate type cold forging process, based on the data obtained by performing simulation and experiments.


Keywords: Thrust washer, Cold forging, Forging process, Forging analysis, Deformation analysis, Progress pressing

Acknowledgments

본 연구는 산업통상자원부와 한국산업기술진흥원의 “지역특화산업육성사업(R&D, R0005558)”으로 수행된 연구결과입니다.

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