Turbine Inlet Housing·Kestrel Aerosystems
Trial 2
FailureA356Apr 27, 2026
Goal
Raise pour temp and add a second gate to close the flange.
Process
- Pour temp
- 745C
- Mold temp
- 210C
- Alloy batch
- A356-2604-D
- Trial date
- Apr 27, 2026
- Gating
- Two bottom gates, three flange risers.
- Changed from the previous trial
- Pour temp 730 to 745. Second bottom gate added.
What came out
Defects observed
Cold shut reduced but still present on one of two. Heavy oxide on the flange face.
Lessons learned
Chasing temperature is making the oxide worse. The part needs a redesign, not a hotter pour.