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Loose Piece Patterns

Loose Piece Patterns Points : Loose Piece Patterns A few patterns are formed as assemblies of loose components pieces for the reason of facilitating easy removal of these patterns as of sand moulds prior to the pouring of molten metal to create production castings. The loose piece probable held in correct position on the pattern by using a bent pin or by a dovetail slide. By a bent pin, the sand is rammed up about the loose piece to hold it decisively, and then the pin is reserved. Ramming is after that completed. While drawing the pattern from the mould, the main body is drawn, exit the loose piece or pieces in the mould.

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