Balance mirrored cavities by gate area

PourA356Porosity4/5 confidence

What we learned

What worked

Opening the gate to the starved cavity by 2mm while leaving the runner alone.

What failed

Assuming a symmetric runner splits evenly. The part is only symmetric about one axis and the flow found that out first.

War story

Changing gate area is a ten minute file job on a printed tool. Moving a runner is a reprint. Always reach for the cheap change first.

Pour conditions

Pour temp
700C
Mold temp
170C
Metal velocity
Low
Degassed
Yes
Degassing
Standard cycle
Die spray
Water based
Spray ratio
1:80
Cycle time
145 s

Tags

4
gatingmirroringbalanceA356

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Captured Apr 2, 2026