The casting process seems simple however, dealing with molten metal is an uphill task. Then the molten material is poured into the mold and left to solidify. Manufacturing commences by carefully designing and making a mold cavity where the operator will pour the liquid. The mold is made in the shape of the desired part, and it is very useful when it comes to complex designs. Casting usually involves metal, but sometimes, manufacturers can use other materials like clay, concrete. Unlike injection molding, where there is pressure used, casting utilizes gravity. Injection molding is costly to start since the machines are expensive.Ĭasting is an industrial process where the hot liquid is poured into a mold to form a product.It becomes expensive when producing small quantities of products.Injection molding allows variation in the material used, like different colors simultaneously.There is consistency in the manufacturing.Production cost is lowered due to reduced labor.Ability to produce a large number of parts fast.Injection molding is applicable in many industries from medical, automotive, packaging, appliances, etc. It is then left to cool and solidify to produce the final part. The operator then injects the molten substance into the mold cavity under pressure, taking the shape and design of the mold. After the mold is ready, the chosen material is put in a heater and melted. It is the most critical step in injection molding as any mistake will reflect in the final product. The final product takes the shape and size of the mold. The standard mold is usually made of metal, preferably steel, due to its properties. The injection molding process starts by making a mold. All these processes use the injection molding concepts to make products. Injection molding has several types: plastic injection molding, die casting, cube molding, silicone rubber molding, reaction injection molding, etc. The process is utilized in the mass production of similar parts. Injection molding is a manufacturing process of producing plastic (most common), metal, glass, or rubber.
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