ProcessChoice Of MaterialComplexity Of PartNumber Of CastingCasting size or WeightSand1,2,3,4,5,67,8,9,10,11Considerable limited by pattern drawing no limit with cores.relative to tool life wide range, type of pattern depends upon total casting.28 gms. ToShell mold1,2,3,4,5,6,9Considerable, limited by removal of mold from the pattern. Less limited to cores.high metal patterns have moderate to high, casting metal affects the life of the mold.28 gms - 45 gms and several grams - 23 kg.Die casting4,5,7,8,10,11moderate, limited by design of movable coreshigh, mold life affected by casting metal.several gms 33ko. In aluminum 90ka. In zinc usually under 7ko.Plaster molding4,5considerable, possible to make a mold of several pieces expendable mold.moderate depends on pattern ma tergal28 gms to several kos. In most of the materialInvestment casting3,4,5,6;9considerable, very complex pattern can be assembled from pieces.moderate, type of pattern mold depends upon - number of castings.under 28 gms. To 45 \kgs. Best for parts under 0. 8 kg.Centrifugal casting1,2,3,4,5,6,9casting of circular periphery most favorable. Almost any shape can be castlow to moderateup to several kgs.Gray iron (2) malleable iron (3) steel (4) aluminum alloys (5) copper alloys (6) nickel alloys(7) zinc alloys (8) magnesium alloys (9) heat and corrosion resistant alloys (10) tin alloys (11) lead alloys