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- Oct 14, 2012
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Not sure what nuclear power lathe are you running But mine doesn't produce anything blue hot, or white hot, or yellow hot, or even any hot chips.
During summertime I actually do operate the lathe shirtless simply because it's the safest (and comfortable) way. There are no hot pieces flying around.
I agree about the "supervision" nonsense, though. Five minutes in, the one watching is having worse reaction time than the guy actually operating the lathe, due to being bored out of his mind and daydreaming/sleeping.
When I mentioned the hot "blue" chips, it was relative to the OP's pictures of lathe work in an industrial/toolroom setting, which most of the time would probably include the cutting of steel.
If you are turning steel in most any size lathe, (doesn't even need to be a nuclear one ), and you are taking a decent size cut, the chips should be coming off the part and turning blue.
This indicates that the heat from cutting is being removed with the chip (a good thing), and not staying in the part. This is for steel only, aluminum will never change color.
On our hobby size projects, working mostly with aluminum, and taking light cuts, the heat shouldn't ever be a problem.
Below are a couple of pics showing what the (steel) chips should look like after a cut.