https://kingship.alumcasting.com/blog/ Recent content in Precision Manufacturing & Tool Design Technical Blog on KingShip Hugo -- gohugo.io en © 2026 KingShip Sun, 05 Jul 2026 00:00:00 +0000 https://kingship.alumcasting.com/blog/advanced-porosity-control-aluminum-die-casting/ Sun, 05 Jul 2026 00:00:00 +0000 https://kingship.alumcasting.com/blog/advanced-porosity-control-aluminum-die-casting/ <p>In precision aluminum die casting, sub-surface porosity is one of the most insidious defects. Unlike surface blisters or macro-shrinkage cavities, sub-surface porosity remains hidden until the skin layer ($0.5\text{ mm}$ to $1.2\text{ mm}$) is removed during CNC machining or surface treatment. For high-pressure die cast (HPDC) components utilizing <strong>ADC12</strong> and <strong>A380</strong> alloys, this defect leads to catastrophic structural failures, pressure-test leaks, and aesthetic rejects after anodizing or powder coating.</p>