Multiple laser set up

[grclarke1000]

If say 3 lasers of the same color were set up, focused all to one same position where the maximum burn would be, would the temperature be the same as with only using one laser, or would the temperature be higher and if so, by how much?

 

[Things]

It will be higher, as you're concentrating 3x as much power into the same area as with a single laser, but by how much would take some pretty in-depth calculations based on how much heat is actually transferred to the material to begin with, it's thermal capacity and also how quickly it's being cooled. So 3x lasers on the same spot won't necessarily mean the material gets 3x hotter, but it means it'll get hotter faster.

 

[grclarke1000]

Hi 'Things', many thanks for a quick reply and has helped me a lot. Previously I search the internet and could not get an answer, thanks, Graham