Process Sand casting
Sand casting produces parts with high geometric complexity. Molds are fairly inexpensive and sand casting is therefore suited for small series production. With automated casting machines (Disamatic) high volume production is possible.

Molds are made from sand (a mixture of silicon sand, carbon? and water). A model of the desired part (called a pattern) is made from wood, plastic or metal. The pattern is placed on a plate and the sand is pressed around it to form the mold.

After casting the mold is destroyed and the cold part can be cleaned and entry runner cut away. Due to slip angles and rough surfaces is additial machining often required.
Danish Name Sandstøbning
Category Mass conserving processes, Metal casting
Materials Cast iron Steel Aluminium
Typical products Car engine block
Frying pan
Price notes Molds are relativily inexpensive. Automation possible with specialised casting machinery (Disamatic)
Environmen- tal notes Sand from used molds is often recycled and after proper treatment used for new castings.
Keywords Complex geometry
Holow parts
Photo Thomas Nissen, Video from IPL, DTU
Copyright © 1996-2019 Torben Lenau
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