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