Can we talk about the time a core shift ruined a whole pour at the old Milwaukee plant?

We were about halfway through a 500-pound bronze pour for a custom gear blank when I saw the core box had shifted a quarter inch, so I yelled to cut the flow and we spent the next three hours chipping the mess out of the flask before the boss even got off the phone with the upset client.

2 comments

2 Comments

barbara845d ago

Our shop had a trainee who mixed the core sand wrong, like way too much binder. Thing was a solid rock. We didn't know until the shakeout, took us a full eight-hour shift with jackhammers just to get the core out of a simple pipe fitting. Felt like archeologists, but for our own dumb mistake.

leow905d ago

Man, that sound brings back a bad memory. We had a greenhorn forget to vent a core once and the whole thing basically EXPLODED when the hot metal hit the trapped air. It wasn't just a ruined pour, it was a safety nightmare with molten splatter everywhere. The cleanup took two days and they had to repaint a whole section of the ceiling. Just a total mess from one skipped step.