Technical

Most foundries collect reject data in one form or another. Scrap is counted. Rework is tracked. Defect codes are assigned. Quality reports are...

A casting fails pressure testing. Machining exposes a cluster of cavities. A tensile specimen returns disappointing elongation. Someone says,...

When porosity, an inclusion, a rough surface, or a crack shows up in a casting, the investigation often goes immediately to the metal. Was the...

A clean melt is not a permanent condition. A foundry can do a great deal right before casting: control the charge, verify chemistry, skim...

Why Clean Metal Still Needs Calm Handling A clean melt can still produce a dirty casting. Chemistry may be on target, hydrogen or...

Capturing Foundry Know-How Before It Is Lost Many foundries operate with more technical knowledge than their formal systems suggest. That...

The Reject Rate Reduction (R3) program reached an important milestone on July 15, when the Non-Ferrous Founders’ Society convened the first...

Shrinkage is rarely random. When a cavity appears beneath a boss, at the center of a flange, or inside a wall junction, it is recording the...

On July 13, 2026, the Department of War announced the immediate suspension of Phase 2 of the Cybersecurity Maturity Model Certification program....

Porosity is one of the most common words used in foundry defect discussions—and one of the easiest words to misuse. A radiograph shows dark...

When porosity appears in a casting, the first practical question is often whether the voids came from gas or from inadequate feeding during...

A good defect photo can save hours of guessing, a bad defect photo can do the opposite. When a casting problem appears, it is natural to take a...