M
We have a requirement for 1Ra surfaces, and although what we've been doing in the past is OK per our customer, I know we are whistling in the dark about our stated values. We want to do better, but the problem starts with the uncertainty we can get from accredited sources.
2Ra is about the limit for uncertainty, unless you have NIST do it ($1650) or Oak Ridge (dunno but it ain't cheap). We are thinking of doing it ourselves, we have a new lab coming up with an isolated slab, and I'm looking at isolation tables - I think we can do it with a high end lab grade profilometer or with a laser based device.
I'm guessing we can do a roughness sample for about $100, with an uncertainty (if it's a good patch) as low as .5Ra and values down to 1Ra or so.
Do you know anyone that might be interested in a service like this? (other than us, and we are a little nutty)
2Ra is about the limit for uncertainty, unless you have NIST do it ($1650) or Oak Ridge (dunno but it ain't cheap). We are thinking of doing it ourselves, we have a new lab coming up with an isolated slab, and I'm looking at isolation tables - I think we can do it with a high end lab grade profilometer or with a laser based device.
I'm guessing we can do a roughness sample for about $100, with an uncertainty (if it's a good patch) as low as .5Ra and values down to 1Ra or so.
Do you know anyone that might be interested in a service like this? (other than us, and we are a little nutty)
My name is Sam.