Material Selection
Material Selection
(OP)
Anyone familiar with a viable material that is CO2 laser friendly (probably available in a range of thicknesses from 0.1mm - 0.7mm)that can stand an operating temp around 150C(300F)? Currently we are using an acrylic substrate but for this application the thermal effects kill it.
note: I am not talking about the thermal effects of cutting it on the laser.. It is when the customer uses the end-product it fails due to warping.
note: I am not talking about the thermal effects of cutting it on the laser.. It is when the customer uses the end-product it fails due to warping.





RE: Material Selection
What is the material supposed to accomplish?
RE: Material Selection
RE: Material Selection
RE: Material Selection
That said, motion guy, is cleanliness, including out gassing, an issue for your application?
We use a lot of delrin, pomalux and that kind of stuff in our semiconductor metrology equipment but it might be too stiff for this application.
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Material Selection
Wood is stable at the temperature indicated, if kiln dried first. Yeah, it would tend to have a lot of extractables if put under vacuum or in the presence of solvents.
I don't think there _is_ a material that will do all of the above.
RE: Material Selection
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Material Selection
RE: Material Selection
I am currently looking into some Polyimides and PEEKs to see if I can have some small thin sheets made without giving them my checkbook.
They have a pretty high Tg (glass transition temp)too and continuous working temps rated around 245C.
RE: Material Selection
RE: Material Selection
RE: Material Selection
I can't help you with the suitability of laser cutting, but I have some ideas for the heat. You might be a little close Tg-wise for polycarbonate, but if you can add some glass it might be close enough. My next choices would be Ryton (PPS), Ultem (PEI), and Radel (PPSU).