Abstract
The research described herein is viewed as the first step toward the design and production of selectively reinforced aluminum MMC components.
The low density and high specific mechanical properties of aluminum metal matrix composites (MMC) make these alloys one of the most interesting material alternatives for the manufacture of lightweight parts for many types of vehicles. The automotive industry recognizes that “weight reduction and improved engine efficiency will make the greatest contribution to improved fuel economy with current powertrains” [1]. This is evidenced by their increased use of aluminum alloys in engine and chassis components.
Most components do not require the high performance capability of aluminum MMCs throughout their entirety. An un-reinforced cast alloy may accommodate the stresses in these areas. Reinforcement of only the high stress regions of a component is referred to as selective reinforcement. This approach to component design and manufacture optimizes the material for the application, reduces the cost of the cast MMC part, and reduces machining costs.
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Gegel, G.A., Weiss, D.J. Enabling Technology for the Design of Short-Fiber Reinforced Aluminum MMC Components. Inter Metalcast 1, 57–67 (2007). https://doi.org/10.1007/BF03355418
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DOI: https://doi.org/10.1007/BF03355418