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Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 32 , No. 1

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[ Technical Papers ]
Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 32, No. 1, pp. 49-55
Abbreviation: J. Korean Soc. Manuf. Technol. Eng.
ISSN: 2508-5107 (Online)
Print publication date 15 Feb 2023
Received 03 Oct 2022 Revised 18 Dec 2022 Accepted 31 Jan 2023
DOI: https://doi.org/10.7735/ksmte.2023.32.1.49
알루미늄 판재의 Tail Gate Hinge 부품 블랭킹 공정에서 버어 감소 및 융착 방지를 위한 급속 Air Cooling 금형기술
박동환^a^{, *} ; 이태길^b ; 전하준^b


Rapid Air Cooling Mold Technology for Reducing Burrs and Preventing Fusion in the Blanking Process of Tail Gate Hinge Parts of Aluminum Alloy Sheets
Dong-Hwan Park^a^{, *} ; Tae-Gil Lee^b ; Ha-Jun Jeon^b
aGyeongbuk Hybrid Technology Institute
bR&D Center, Samsungtech Co., Ltd.
Correspondence to : ^*Tel.: +82-54-330-8052 E-mail address: pdh@ghi.re.kr (Dong-Hwan Park).

Abstract

Aluminum alloy is different from high strength steel, which is a hard material. Cracks owing to insufficient elongation in the press forming process and shear stress repeatedly applied in the shear process cause aluminum particles fused to the material surface to fall. To eliminate these, a large waste of manufacturing time occurs due to additional processing operations. We developed a rapid air cooling shear mold with a vortex tube that can prevent fusing of aluminum material at the punch and die edges of the upper and lower molds. The goal was to solve the chronic burr problem by minimizing the thermal occurrence generated during shearing. In the blanking mold of Tail Gate Hinge parts, the temperature inside the mold increases owing to the heat generated during continuous press production. Cooling is possible in an actual mold experiment by applying a rapid air cooling system using a vortex tube.


Keywords: Tail gate hinge parts, Electric vehicles, Rapid air cooling, Shearing, Aluminum alloy sheets

References


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Dong-Hwan Park

Head Researcher, Gyeongbuk Hybrid Technology Institute. His research interest is Metal Forming Technologies for Automobile Parts.

E-mail: pdh@ghi.re.kr

Tae-Gil Lee

Director in the Department of R&D Center, Samsungtech Co., Ltd. His research interest is Sheet Metal Forming for Automobile Parts.

E-mail: ltg1119@naver.com

Ha-Jun Jeon

Researcher in the Department of R&D Center, Samsungtech Co., Ltd. His research interest is Plastic Working for Automobile Parts.

E-mail: masculinjym@naver.com