I am in a civilian lab and the last time I calibrated a surface plate was back in the 80's. I have a customer that is asking for 12 plates to be calibrate. does anyone have a procedure that you can foward to me. either PM me or send me a regular e-mail gbl25@aol.com
also is you perfom that type of work in the North East, I may just sub contract you. I am aware I need to buy lasers and mirrows.
Can you tell me what part of the country your in? That might help narrow down possible places to sub to.
What are the size of the plates? You may only need a repeat-o meter if they are small enough.
I am in NJ, and they have various sizes. I think the bigger one is 32 x 64 inches.
Have you checked Gidep for a procedure?
We utilize a repeat o meter and an autocollimator to verify repeat measurement and overall flatness.
You will also need diamond powder and a lapping plate to return the plate to the specified grade required if found out of tolerance.
There is a learning curve to this procedure and there is math involved so I recommend utilizing an approved qualified vendor in your area.
No I didn't check Gidep, I don't have access to it.
and for sure if the plate is out of tolerances...I am not going to touch it. if anything I just performed a verification. does anyone does this type of work around New Jersey?