Molding and Casting

Molding is the process of manufacturing by shaping liquid or pliable raw material using a rigid frame called a mold or matrix. This itself may have been made using a pattern or model of the final object. ... The liquid hardens or sets inside the mold, adopting its shape. A mold or mould is a hollowed-out block that is filled with a liquid or pliable material such as plasticglassmetal, or ceramic raw material. A mold is the counterpart to a cast

Molding is a technique through which a material, often plastic, but also metal, rubber, or powder mixtures is shaped on the outline of a die or mold. There are many different techniques for molding materials, just as there are many different applications for each process. 

Moulding Boxes. ... Special purpose boxes are designed for use in moulding systems where the demand of high pressure moulding and high production rates (from a fully automated system) require a box designed & machined to exacting tolerances.

Casting is a manufacturing process in which a liquid material is usually poured into amold, which contains a hollow cavity of the desired shape, and then allowed to solidify. The solidified part is also known as a casting, which is ejected or broken out of the mold to complete the process.

Both the processes involves pouring of molten metal into a mold/die which will take the shape of cavity mold or die on solidification. The basic difference between moulding and casting is the method by which molten metal is poured. ... Casting use a one time mold but molding can use molds on repetition too.

Among the most commonly used mold materials are liquid latex, silicone rummer, urethane rubber, and alginates. Common cast making materials include Plaster-of-Paris and Gypsum cementconcreteplastics (resins and epoxies), waxes, metals.

Difference between molding and casting

Molding - molding is the preferred process for manufacturing plastic parts. Injection molding is used to create many things such as electronic housings, containers, bottle caps, automotive interiors, combs, and most other plastic products available today. It is ideal for producing high volumes of plastic parts due to the fact that several parts can be produced in each cycle by using multi-cavity injection molds. Some advantages of injection molding are high tolerance precision, repeatability, large material selection, low labor cost, minimal scrap losses, and little need to finish parts after molding. Some disadvantages of this process are expensive upfront tooling investment and process limitations.

Casting - 
casting involves pouring liquid metal into a mold, which contains a hollow cavity of the desired shape, and then allowing it to cool and solidify. The solidified part is also known as a casting, which is ejected or broken out of the mold to complete the process. Casting is most often used for making complex shapes that would be difficult or uneconomical to make by other methods


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