Had a core shift scare on a big gearbox casting in Erie last month.

The chaplet on the main bearing seat gave way during the pour, so I had to stop the ladle, signal the crane, and we used a steel rod to manually brace the core until the metal set enough to hold it, which saved a two-ton casting from being scrap.

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3 Comments

sam1447mo ago

How long did you have to hold that steel rod in place?

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wilson.anthony6mo ago

Yeah, "how long" is the scary part. I mean, like knight.derek said, it's a wild move, so I gotta ask if they even had a timer or if it was just until someone couldn't take the heat anymore.

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knight.derek7mo ago

Manually bracing with a rod is a wild move under all that heat. What kind of setup did you have for the rod, like was it just a guy in a suit holding it against the core, or was there some way to lock it in place temporarily?

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