Design principles for aluminum, zinc and magnesium die casting
Al: 1° min. Zn: 0.5°. Mg: 1.5°. Interior: 1.5-3°. Textures: +1° per 0.025mm.
Al: 2-4mm (min 1). Zn: 0.8-3mm (min 0.5). Mg: 1.5-3.5mm. Max 2:1 variation.
Gas → improve venting/vacuum (1-2% vs 3-5%). Shrinkage → optimize gates. Squeeze pins.
| Alloy | Density | UTS MPa |
|---|---|---|
| Al A380 | 2.71 | 320 |
| Zn Zamak 3 | 6.6 | 280 |
| AZ91D Mg | 1.81 | 230 |