Aluminum / Steel 이종소재 접합의 모재강도 및 두께별 SPR 접합성에 관한 연구Joint Quality Study of Self-piercing Riveted Aluminum and Steel Joints Depending on the Thickness and Strength of Base Metal
- Other Titles
- Joint Quality Study of Self-piercing Riveted Aluminum and Steel Joints Depending on the Thickness and Strength of Base Metal
- Authors
- 정택언; 김민규; 이세헌; 감동혁
- Issue Date
- Jun-2019
- Publisher
- 대한용접접합학회
- Keywords
- Aluminum; Steel; Dissimilar joint; Thickness; Strength of base metal; Self-piercing rivet (SPR)
- Citation
- 대한용접접합학회지, v.37, no.3, pp 212 - 219
- Pages
- 8
- Indexed
- KCI
- Journal Title
- 대한용접접합학회지
- Volume
- 37
- Number
- 3
- Start Page
- 212
- End Page
- 219
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/2186
- DOI
- 10.5781/JWJ.2019.37.3.3
- ISSN
- 2466-2232
2466-2100
- Abstract
- Dissimilar joining of aluminum and steel is one of the fundamental techniques for achieving weight reduction in the automotive industry. Self-piercing rivets have been widely adopted for the aluminum-steel lap joint because of its simplicity and high joining strength. In this study, the joining quality of the aluminum-steel joint produced by self-piercing rivets is investigated depending on the strength and thickness of the aluminum sheet. Four different tensile strengths (228, 305, 320, and 326 MPa) of aluminum are considered in this study, which corresponds to Al5052-H32, Al5754-H18, Al5083-H32 and Al6061-T6. For the thickness variation test, Al5052-H32 sheets with a thickness of 1.2, 1.5, 2.0, 2.5 mm are used. The SPR joint quality was quantified with cross-sectional visual analysis and tensile lap shear test. In aluminum(top)-steel (bottom) SPR joint, it was observed that the joint load increased with increasing aluminum strength up to 320 MPa. Nevertheless, the thickness of top aluminum was found to not affect the joint strength between the thickness of 1.5 ~ 2.5 mm. In steel(top)-aluminum(bottom) SPR joint, it was found that joint strength did not change with aluminum strength but increased with increasing aluminum thickness.
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