![]() ![]() ![]() Very limited research work has been performed with Al-Mg and Al-Cu type alloys. Most of the aluminum alloys poured using the lost foam process are based on the Al-Si system. Some of the unique advantages of using the lost foam casting process are closer dimensional tolerance, higher casting yield, and the elimination of sand cores and binders. This is especially true in Al-Mg and Al-Cu alloy systems that are prone to hot tearing when poured in rigid molds partially due to their long freezing range. The use of un-bonded molding media in the lost foam process will impose less constraint on the solidifying casting, making hot tearing less prevalent. The lost foam casting process is a cost effective method for producing complex castings using an expandable polystyrene pattern and un-bonded sand. With the increased emphasis on vehicle weight reduction, production of near-net shape components by lost foam casting will make significant inroad into the next-generation of engineering component designs. Pretests showed, that there are technical possibilities of manufacturing of casts from ductile cast iron in the LOST FOAM process with use of spheroidization in mould.Įnergy-Saving Melting and Revert Reduction Technology (E-SMARRT): Lost Foam Thin Wall - Feasibility of Producing Lost Foam Castings in Aluminum and Magnesium Based AlloysĮnergy Technology Data Exchange (ETDEWEB)įasoyinu, Yemi [CanmetMATERIALS Griffin, John A. Nodulizer was located in the reactive chamber in the gating system made of foamed polystyrene. The spheroidization was carried out by magnesium master alloy in amounts of 1% casting mass. (author)ĭuctile cast iron obtaining by Inmold method with use of LOST FOAM processĭirectory of Open Access Journals (Sweden)įull Text Available The possibility of manufacturing of ductile cast iron castings by Inmold method with use of LOST FOAM process was presented in this work. The results and the correlations are of particular interest as there is no published literature on lost foam casting of composite materials. These results were compared with those for the matrix material cast under similar conditions. Lost foam casting of aluminum alloy matrix composite containing 20 volume percent SiC was carried out at 690, 730, and 770 o C with a view to determining the effects of cooling rate on microstructure, particle distribution, microporosity and mechanical properties. Metal matrix composites are a viable alternative to cast irons in automotive components with possible increase in strength-to-weight ratio. International Nuclear Information System (INIS)īaalasuburamaniam, R. Lost foam casting of aluminum alloy-SiCp composite material ![]()
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