Investment casting processing steps as follow :
1,Make the pattern - The wax patterns is injected into a metal mold then formed as one piece. Several of these patterns are attached to a central wax gating system, Called wax pattern tree , Then dipped
2,Pouring - molten metal is poured from gating system of the mold, filling the mold cavity.
3,Cooling - The casting cooling time depends on the the structure of the parts and the different material .
4,Remove casting shell – the shell should be broken and the casting removed..
5,Finishing - grinding or sandblasting