c/foundry-workers

The shift from shared pots to solo takeout at our shop

We used to have a big electric kettle in the break room where everyone would heat up soups or make instant coffee. Now, with the new schedule, most guys grab a burger from the diner across the street and eat in their cars. I remember when old Joe would bring in his famous beef stew every Friday, and we'd all share. Those shared meals made the long shifts feel shorter.

Skipping furnace soak time to hit a deadline? That's how you wreck a batch and your reputation.

Why my mold wash mix ruined a casting

I made the mold wash like always, but the metal came out rough. A veteran worker told me I put too much water in it. Today I mixed it with less water, and the surface looks better. Is there a trick to get the thickness perfect for each pour?

Warning: Our foundry's new robots are making us forget how to work

We let the machines do everything and lose our touch with the metal. I noticed a crew mess up a simple pour because they trusted the auto-system too much. Now we're stuck fixing errors that should never happen.

Heads up on recycled sand and core voids

I learned it was the recycled sand. We reuse sand from broken molds to save money, but the clay gets low after a few uses. Last week, a whole batch of parts had holes inside because the sand didn't hold up. I tested the moisture, and it was too dry. Now I mix in new sand every third time to keep it right. It's a small thing, but it stops wasting metal. If you see this too, check your sand. Don't let old sand mess up your castings.

After tweaking my burnout cycle, the wax melted clean for a change

Working on a small bronze pendant at home, and my last few tries left residue in the mold. This time I ramped up the kiln slower and held it at temp a bit longer. The flask came out clear, so the metal should fill the details better. Really happy with how it turned out for once.