A Study on the Shear Characteristics of Fine Blanking for Al 5052 and Eco-Al 5052 Sheet

Abstract:

Fine blanking is a press-working process that permits the production of precise finished components which are cleanly sheared through the whole cutting surface. It can be eliminated secondary operations, such as milling, grinding, etc. Recently, many studies on the weight reduction of automobile for fuel saving were underway. Especially, there are many examples which new materials were applied for automotive parts. Eco-Al is the new material which is replaced Mg of aluminum alloy with Mg+Al₂Ca, therefore Eco-Al material has improved mechanical properties and formability. In this paper, the shear characteristics of Eco-Al 5052 and Al 5052 parts which had been blanked by fine blanking process were analyzed and compared. As a result, even though Eco-Al and Al sheets were not treated for fine blanking, the cutting surface of Eco-Al and Al parts had the shear surface of more than 85% and dimensional accuracy of more than ISO accuracy grade 9.

• Periodical: Advanced Materials Research (Volume 717)
• Pages: 188-193
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.717.188
• Online since: July 2013
• Authors: Jong Deok Kim, Young Moo Heo, Si Tae Won, Ho Keun Kang
• Keywords: Al 5052, Eco-Al 5052, Fine Blanking, Shear Surface

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