Showing posts with label CAD. Show all posts
Showing posts with label CAD. Show all posts

Wednesday 23 October 2013

Sand Casting Process



Steps in Sand Casting

1.Pour molten metal into sand mold
2. Allow metal to solidify
3. Break up the mold to remove casting
4. Clean and inspect casting
5. Heat treatment of casting is sometimes required to improve metallurgical properties
 

Making the Sand Mold
 
1.The cavity in the sand mold is formed by packing sand around a pattern, then     
  separating the mold into two halves and removing the pattern
2.The mold must also contain gating and riser system
3.If casting is to have internal surfaces, a core must be included in mold
4.A new sand mold must be made for each part






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Casting Patterns QUIZ






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SAND CASTING QUIZ

Sand Casting



•Most widely used casting process, accounting for a significant majority of total tonnage cast
•Nearly all alloys can be sand casted, including metals with high melting temperatures,
  such as steel, nickel,and titanium
•Parts ranging in size from small to very large
•Production quantities from one to millions






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