Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Molding or moulding is the process of manufacturing by shaping pliable raw material using a rigid frame or model called a pattern. A mold or mould is a hollowed-out block that is filled with a liquid like plastic, glass, metal, or ceramic raw materials. The liquid hardens or sets inside the mold, adopting its shape. A mold is the opposite of a cast. The manufacturer who makes the molds is called the moldmaker. A release agent is typically used to make removal of the hardened/set substance from the mold easier. The terminology can depend on the application. Sand casting involves both a pattern" (which is the positive-image model of the desired part) and a "mold" (which is the negative-image hole made by packing sand around the pattern). Manufacturing is the use of machines, tools and labor to make things for use or sale. Also it can be used for selling things. The term may refer to a range of human activity, from handicraft to high tech, but is most commonly applied to industrial production, in which raw materials are transformed into finished goods on a large scale."
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