Mildly Interesting

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Thermal image of cutting a metal bar with a hacksaw (media.piefed.social)

submitted 5 days ago by pageflight@piefed.social to c/mildlyinteresting@lemmy.world

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The bar is clamped in a metal vise, so the vise is very slightly heated and that side of the bar is much cooler.

Taken using the Topdon Android attachment.

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[–] pageflight@piefed.social 1 points 4 days ago (1 children)

I do have some kapton tape. I've heard black sharpie on masking tape too. The cutoff piece was definitely uncomfortable to hold but not in the range of instant burns; also a pretty dull surface. I wouldn't be surprised if it were a bit about 107⁰F but I don't think it was near 300⁰F.

[–] huquad@lemmy.ml 2 points 4 days ago

Haven't used sharpie and masking tape before, but I've used kapton at relatively high temps (500F). Contact pain for metal typically starts around 113F (45C), but I was referring to right where you were cutting, not where you were holding.