Shell Molding And Die Casting

Pattern making: The first step is to create the metal pattern of the desired part shape. This two-piece pattern is usually made of steel or iron, but can also be made of aluminum, graphite or other materials.
Mold making: first heat and lubricate the mold to make it easy to remove. Then, connect it to a dustbin filled with a mixture of sand and resin. Then put the trash can upside down to cover the pattern with sand and resin. Due to the heated pattern, the mixture begins to solidify and form a shell surrounding the pattern. After the curing process is complete, remove the shell from the pattern.
Mold assembly: The two halves of the housing are then clamped together to form a complete mold. If a core is required, place it in place before closing the mold.
Pouring: The molds are then clamped together, and the molten metal is poured into the mold cavity through the gate system. cnc machining part
Cooling: After the mold is filled, the metal is cooled and solidified into the final casting shape.
Remove castings: Then break the mold, and then remove the castings. Then remove all excess metal and sand from the feed system and mold.
Shell molding applications
Shell molding can be used for ferrous and non-ferrous metals, and most commonly used for carbon steel, stainless steel, alloy steel, cast iron, copper alloy and aluminum alloy. It is usually used to manufacture small and medium-sized parts that require high dimensional accuracy and thin cross-sections. Common parts made with shell molding include: