Investigation on Friction Coefficient Considering Al-Si Coating Layer Fracture of Boron Sheets in Hot and Cold Deep Drawing

Abstract:

In this paper, hot and cold deep drawing processes are determined with direct deep drawing process and indirect deep drawing process. To predict the friction coefficient, the finite-element method, which can predict deformation behavior until the fracture of a blank sheet, was proposed using the forming limit diagram (FLD) curve. The effect of fracturing of the coating layer on the friction coefficient during the hot and cold deep drawing processes was investigated. The deformation behavior of the coating layer of the boron steel sheet that affects the friction coefficient in the hot and cold deep drawing processes was also proposed. A forming method that can control the surface condition of the formed product is further proposed by explaining the fracture of the coating due to the forming process.

• Periodical: Key Engineering Materials (Volume 846)
• Pages: 117-121
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.846.117
• Online since: June 2020
• Authors: Min Sik Lee, Jun Park, J.S.S. Babu, Chung Gil Kang*
• Keywords: Coating Layer Fracture, Cold Deep Drawing, Direct Hot-Press Forming, Forming Limit Diagram, Friction Coefficient, Hot Deep Drawing, Indirect Hot-Press Forming

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