I propose that I can create tiny raised 'bumps' in a thin sheet of aluminium, using a laser.
I believe that I can use the laser to heat a tiny spot on the aluminium (say approaching 1 micron), not enough for the spot to melt but simply enough for thermal expansion to occur. This will cause a tiny section of the metal to raise up, due to it expanding around that point, and as it is constrained by the cooler metal surrounding it.
I have a few questions about this:
* Is this process feasable (i.e can it really work?)
* How fast does this process occur?
* Can the bumps turn back to the previous state? (flat)
Any help or infomation about this would be most apreciated.
Thankyou.
I believe that I can use the laser to heat a tiny spot on the aluminium (say approaching 1 micron), not enough for the spot to melt but simply enough for thermal expansion to occur. This will cause a tiny section of the metal to raise up, due to it expanding around that point, and as it is constrained by the cooler metal surrounding it.
I have a few questions about this:
* Is this process feasable (i.e can it really work?)
* How fast does this process occur?
* Can the bumps turn back to the previous state? (flat)
Any help or infomation about this would be most apreciated.
Thankyou.