To study and observe various stages of casting through demonstration of sand casting process

Procedure

• PLACE the inverted pattern at the bottom of the inverted drag
• TRANSFER the sand into the drag with shovel
• RAM the sand into the drag and INVERT it (the pattern faces upward)
• SPRINKLE the parting sand over the drag
• FIX the cope on the drag with guide pins
• PLACE the sprue and the riser perpendicularly into the cope at the allotted positions
• FILL the cope with the moulding sand and RAM it
• REMOVE riser and sprue
• REMOVE the pattern by removing the guide pins and relocate them after remove the mould
• DAMP a depression for pouring basin at the opening of the riser
• POUR the molten metal into the pouring basin
• After cooling, metal casting is prepared
• CLICK on the casting to see various defects