Below are the Die Casting operations that have associated feasibility rules, grouped by GCD type. Each operation is accompanied by necessary conditions for the operation’s feasibility. aPriori checks the operations in the order specified by the operation templates.
Note: inaccessible holes, voids, and combo voids that are obscured or undercut are assumed to be machined. You must unmerge any such combo voids, so that the constituent hole and void can be assigned machining operations. Such combo voids that are not unmerged will fail to cost (see also GCD Extraction for Die Casting).
See Trim Machine Selection for information on Trim operation feasibility, which affects tooling cost as well as required clamp force.
Curved Surface
As Cast
Surface area is nonzero.
Tolerance is not too small to cast, if secondary machining is disabled.
GCD does not lie on an axigroove.
Curved Wall
As Cast
Surface area is nonzero.
Tolerance is not too small to cast, if secondary machining is disabled.
GCD does not lie on an axigroove.
Void and ComboVoid
All Operations
Box width is not too small to cast (that is, diameter is greater than or equal to the plant variable minDieCastableHoleDia).
Box height is not too small to cast (that is, diameter is greater than or equal to the plant variable minDieCastableHoleDia).
Insert Coring
GCD is obscured or undercut.
GCD is not accessible from the draw direction.
Side Coring
GCD is obscured or undercut.
GCD is accessible from the void direction.
No Coring
GCD is accessible from the draw direction (accessibility is Side A, Side B, or Through).
Multistep Hole
All Operations
Diameter is not too small to cast (that is, diameter is greater than or equal to the plant variable minDieCastableHoleDia).
Insert Coring
Always infeasible
No Coring
Hole is accessible from the draw direction (accessibility is Side A, Side B, or Through)
Hole is not threaded, if secondary machining is disabled.
Side Coring
Hole is obscured from the draw direction.
Hole has unobstructed parallel access for a slide.
Hole Unscrewing
The GCD is threaded.
Planar Face
As Cast
Surface area is nonzero.
Tolerance is not too tight to cast, if machining is disabled.
Simple Hole
All operations
Diameter is not too small to cast (that is, diameter is greater than or equal to the plant variable minDieCastableHoleDia).
Tolerance is not too tight to cast, if secondary machining is disabled.
Insert Coring
Always infeasible
No Coring
Hole is accessible from the draw direction (accessibility is Side A, Side B, or Through)
Hole is not threaded, if secondary machining is disabled.
Side Coring
Hole is obscured from the draw direction.
Hole has unobstructed parallel access for a slide.
Hole Unscrewing
The GCD is threaded.