Semi-Solid Forging Process and Die Design in the Production of Aluminum Thin Plates

Abstract:

In this study, A356 aluminum thin plates (1.2 mm thick) are fabricated using the semi-solid forming process. Using the electromagnetic stirrer, A356-based semi-solid slurry is fabricated. The configuration of the thin die cavity for forging is designed using the fluid analysis of MAGMA software. The dimension of the thin plate is 150 x 150 x 1.2 mm. The semi-solid slurry with 45% solid fraction is created and then injected into the forging die at the 200-ton hydraulic press for compression. Thin plate with semi-solid slurry at 45% of the solid fraction (fs) is fabricated with punch speed of 300 mm/s and punch pressure of 200 MPa for compression the slurry. The formability, mechanical properties and microstructure of a formed thin plate sample are analyzed. As a result, a thin plate with 211.5 MPa of tensile strength and 8.5% of elongation can be formed.

• Periodical: Solid State Phenomena (Volumes 217-218)
• Pages: 151-158
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.217-218.151
• Online since: September 2014
• Authors: Chul Kyu Jin, Chung Gil Kang*
• Keywords: Electromagnetic Stirring, Filling Simulation, Forging, Semi-Solid Material, Solid Fraction

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