Process | Sand casting |
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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. |
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Danish Name
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Sandstøbning |
Category
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Mass conserving processes, Metal casting |
Materials
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Cast iron Steel Aluminium |
Typical products
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Car engine block Frying pan |
Price notes
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Molds are relativily inexpensive. Automation possible with specialised casting machinery (Disamatic) |
Environmen- tal notes
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Sand from used molds is often recycled and after proper treatment used for new castings. |
Keywords
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Complex geometry Holow parts |
Photo
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Thomas Nissen, Video from IPL, DTU |
Copyright
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