Describe term pattern materials, Mechanical Engineering

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Pattern Materials

The requirements of pattern are:

Secure the desired shape and size of the casting.
Cheap and readily available.
Light in mass and convenient to handle.
Have high strength.
Retains its dimensions and rigidity during the entire service of its life.

Based on the above factors, we can choose pattern material as follows:

Piece and short run production: Plastic
Large scale and mass production: Metal
Batch production: Plastics

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