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http://dx.doi.org/10.5762/KAIS.2018.19.8.25

A Study for Stamping of Patchwork with Resistance Spot Weld  

Lee, Gyeong-Min (Korea Automotive Technology Institute)
Jung, Chan-Yeong (Hyundai Hitec)
Song, Il-Jong (Hyundai Hitec)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.19, no.8, 2018 , pp. 25-31 More about this Journal
Abstract
Recently, research on the development of lightweight vehicle bodies is increasing continuously as a response to fuel economy regulations. To reduce the weight of a vehicle body, a conventional steel plate has been substituted by light weight material with high specific strength and the jointing of multi-materials is generally applied. On the other hand, the customer's demand for safety and emotional quality in NVH (Noise, Vibration and Harshness) is becoming increasingly important. Therefore, a light weight with proper strength and NVH quality is needed. In the view of light weighting and NVH quality, the application of a vibration proof steel plate can be an effective solution but the formability of a sandwich panel is different with a conventional steel sheet. Therefore, careful analysis of formability is required. This study aims to characterize the formability of a sandwich high-strength steel plate. The high-strength steel plates of different thicknesses with resistance spot welding and sealer bonding were analyzed using forming limits diagram through a cup drawing test.
Keywords
Cowl Module; FEM; Forming Limit Diagram; Sealer Patchwork; Stamping;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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