Workshop Technology
The metal is subjected to mechanical working for

Reducing original block into desired shape
All of these
Refining grain size
Controlling the direction of flow lines

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Workshop Technology
The purpose of a gate is to

Act as a reservoir for the molten metal
Feed the molten metal to the casting in order to compensate for the shrinkage
Delivers molten metal from pouring basin to gate
Delivers molten metal into the mould cavity

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