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 12 points 5 days ago (1 children)

I assumed it was because the blades wear quickly, but I wonder if it affects great dissipation too.

[–] desiccated_event@piefed.blahaj.zone 6 points 5 days ago (2 children)

Does this also affect bandsaws, with a single, thin blade that moves rapidly? Your assumption was always mine until I saw this photo, and thought about it. Chances are the replaceable blade was the motivator, and heat dissipation was a happy side-effect.

[–] pageflight@piefed.social 2 points 4 days ago

I'll have to take a thermal image next time I'm using the bandsaw! My understanding is part of the benefit of the long blade loop is heat dissipation.

[–] SlurpingPus@lemmy.world 2 points 4 days ago* (last edited 4 days ago)

I mean, hacksaw blades are sold by a pack of ten usually, because you're definitely gonna need to replace them.