Molding (process): Wikis

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molded parts with an undercut can still be molded with the use of a side action (animated)?

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Updated live from Wikipedia, last check: May 20, 2013 03:45 UTC (52 seconds ago)

From Wikipedia, the free encyclopedia

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.

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.

Types of molding include:

Compaction plus sintering
Injection molding
- Reaction injection molding
Compression molding
Transfer molding
Extrusion molding
Blow molding
Rotational molding
Thermoforming
- Vacuum forming, a simplified version of thermoforming
Laminating
Expandable bead molding
Foam molding
Rotomolding
Vacuum plug assist molding
Pressure plug assist molding
Matched mold

Injection molding die with side pulls
"A" side of die for 25% glass-filled acetal with 2 side pulls.	Close up of removable insert in "A" side.	"B" side of die with side pull actuators.	Insert removed from die.