crochambeau wrote:multi_s wrote:here is some low wattage fun maybe you will be into cro-my-beau (scroll down to rusty whale) man (anti?)rusting the the control labelling. that would look hawt. just saying.
https://jenslabs.com/2013/12/16/what-ca ... er-cutter/
here is what you really need though:
I think the reaction I'm looking for is...
MY BONERjwar wrote:The laser beam does get hot enough and it works fan-fucking-tastic with steel. No doubt about it. However, when annealing steel, which would be close to the same settings as cutting, it causes the opposite side of the steel to oxidize. I'm assuming it's some sort of chemical reaction to the beam, but I've never figured out exactly why. Instant rust and bad, bad, bad.
Oh, hey jwar, I promise I'm not stealing your lines. I just, borrowed it for one second.. see, no scratches or nothing..
While on the surface instant rust sounds like my bag, I agree that it has no place in cutting. Were you introducing any gas?
Realistically, labeling controls through rust would get more of a workout than actual cutting.. at least until I fall in love with square holes. Sort of brings my interest in line with the original Eleksmaker A5 post.
No gases introduced. Just oxygen after the lasering process.
So what I'm assuming is occurring is that while the laser is creating exothermic conditions (which would be annealing or cutting), the steel gets super heated to the point of causing a reaction when introduced to oxygen. So perhaps, and this is just a theory, the rust like conditions only occur when the steel cools too fast or is introduced to oxygen. With the machine I had, it was air tight, so that would explain the rapid interaction.
Again, I'm just guessing here based on my knowledge base.