A Study of Forging of Aluminum-Based Metal Matrix Composites
Date Issued
2009
Date
2009
Author(s)
Ho, Yu-Chien
Abstract
Due to its lightweight and high specific strength, aluminum-based metal matrix composites have been widely used for structural components. Although the principle manufacturing process has been casting, the forging has considerable potential because of its competitive productivity and performance. As for forging, A6061/Al2O3 is considered as the suitable aluminum-based metal matrix composites for the manufacturing process at the present time. In the present study, the forging of aluminum-based metal matrix composites at elevated temperatures is studied by experiments and the finite element analysis. he forging process of a characteristic geometry is studied in the present study. The forging of aluminum-based metal matrix composites characteristic geometry at elevated forming temperatures was then investigated afterwards. In the forging process, a bulk is formed into the part shape in which a boss and side wall of certain height are required. In order to examine the effect of process parameters, such as forging temperature and forging velocity and die temperature and friction factor, on the formability of boss height, the finite element software DEFORM 2D is employed to simulate the forging processes, using the relations between boss and side wall height , material flow pattern, and forging load as forming index. The experimental results obtained in the present study provide the fundamentals for the forging aluminum-based metal matrix composites.
Subjects
aluminum-based metal matrix composites
forging
characteristic geometry
finite element method
experimental
Type
thesis
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