Workshop Technology
The metal is subjected to mechanical working for

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

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Workshop Technology
The purpose of a gate is to

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

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