Author name: todd

Most engineers who ask their foundry for better surface finish get the same answer: use finer sand. That advice is […]

A wood pattern that warps after six months of storage costs you more than the aluminum pattern you avoided buying

Ductile iron is one of the most widely cast ferrous alloys on the planet, with global foundry output exceeding 30

A six-piece welded pivot arm hits the fabrication floor — cutting, fitting, welding, grinding, stress-relieving. The same part as a

Pick up a sand casting and a die casting side by side. Run your thumb across both surfaces. The sand

When a new casting job lands on my bench, the first two questions I ask are always the same: how

Resin sand casting uses a chemical binder — typically furan or phenolic urethane — instead of the clay-and-water mixture in

Every week someone sends me a drawing with +/-0.5 mm on every dimension and asks if sand casting can hold

Gray iron’s compressive strength reaches 3-4x its tensile strength — a property inversion that makes it the dominant choice for

Sand casting produces roughly 70% of all metal castings worldwide. The blank you receive from a foundry arrives rough —

Which pattern type does your project actually need? Textbooks list eight or ten types with equal weight, as if skeleton

Most people walking into a foundry for the first time call the pattern “the mold.” It is not the mold.

A pattern that’s off by half a percent in shrinkage produces castings that miss the machining envelope — and the

Every stainless steel family — austenitic, ferritic, martensitic, duplex, and precipitation-hardened — has established cast equivalents with ASTM designations. I’ve

On a recent order of fifty 1,000-lb steel castings, 91% of all grinding time went to remediating casting defects —

Yes. Steel is sand cast every day — for valve bodies, pump housings, structural brackets, and pressure-containing components across every

A $10,000 savings on tooling sounds like a clear win — until a 20-minute CNC cycle on every unit burns

A $50,000 die casting mold adds $50 to every part at 1,000 units — but only $0.50 at 100,000. That

Every “top 10 sand casting companies” list I’ve reviewed in the past year was written by a foundry that ranked

The first 3D printed sand mold I unpacked looked wrong. The layer lines were visible, the surface felt rougher than

I pull dry sand castings off the line every week that could have been green sand jobs. The tolerance table

Sand-related defects account for 30 to 40 percent of all casting rejections. A large share of those trace directly to

Sand casting is not a permanent mold process. It is an expendable mold process — you break the mold apart

Most sand molds get used exactly once. The mold is destroyed when you break it apart to pull out the

I’ve reviewed thousands of casting quotes over the years, and the most common budgeting mistake I see is treating the

If 42% of North American foundries run green sand and 40% run no-bake, why does every comparison guide act like

Automated green sand lines produce over 300 molds per hour — faster than any other sand casting method. That speed,

Sand type and mold type are not the same thing, even though most references use the terms interchangeably. The sand

Sand selection is not one choice but two — the base sand material and the bonding system that holds it