Mold making

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One half of a bronze mold for casting a socketed spear head dated to the period 1400-1000 BC. There are no known parallels for this mold.
Stone mould of the Bronze Age used to produce spear tips.
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). Types of molding include:* Compaction plus sintering* Injection molding** Reaction injection molding* Matrix molding* Compression molding* Transfer molding* Extrusion molding* Blow molding* Rotational molding* Thermoforming** Vacuum forming, a simplified version of thermoforming* Matrix molding* Laminating* Expandable bead molding* Foam molding* Rotomolding* Vacuum plug assist molding* Pressure plug assist molding* Matched mold

Contents

Types of Molds in Ceramic

Hump Mold

Drape Mold

Two-Part Mold

Two-or-more Part Mold

Press Mold

  • Injection molding die with side pulls

  • "A" side of die for 25% glass-filled acetal with 2 side pulls.Image:Injection molding die with insert.JPG|Close up of removable insert in "A" side.Image:Injection molding die B side.JPG|"B" side of die with side pull actuators.

  • Insert removed from die.

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