Injection Moulding

Injection Moulding is a manufacturing process for producing from both thermoplastic and thermosettingplastic materials. Molten plastic is injected at highpressure into a mould, which is the inverse of the product's shape. After a product is designed, usually by an industrial designer, molds are made by a mould maker. from metal, usually either steel or aluminium and precision-machined to form the features of the desired part. Injection molding is widely used for manufacturing a variety of parts, from the smallest component to entire body panels of cars.Injection molding is the most common method of production, with some commonly made items including bottle caps and outdoor furniture. Injection molding typically is capable of tolerances equivalent to an IT Grade of about 9–14.
Injection molding machines, also known as presses, hold the molds in which the components are shaped. Presses are rated by tonnage, which expresses the amount of clamping force that the machine can exert. This force keeps the mold closed during the injection process. Tonnage can vary from less than 5 tons to 6000 tons, with the higher figures used in comparatively few manufacturing operations. The required force is determined by the material used and the size of the part, larger parts require higher clamping force.