Welder in action
David Frane Welder in action

To the non-welder, welding is a mysterious process hidden from view by a blinding ball of light. The welder sees more, being close to the action and able to look through the visor. But before the invention of high-speed camera no one saw anything like this—ultra-slow-motion video of what happens when metal is joined by welding.

Standard video cameras can shoot, 24, 30, or 60 frames per second (FPS). Some high-speed cameras are capable of shooting as many as 250,000 FPS, which allows them to be used for the kind of slow motion video seen below. There’s no reason to watch these except that they’re cool, and because one shows why there are ripples in the surfaces of finished welds. It’s too bad none of these have soundtracks—may I suggest watching them to your favorite freaky (or not) music

If metal is not your thing, click here to see ultra-slow-mo video of wood being cut on a table saw.

Redman MC500 Weld Camera 400amp Pulsed Tig - Wirefeed

High speed video MIG welding with transmitted light

High Speed Video of TIG Weld

MIG Flux cored welding with High speed camera