Re: Calibration of Home Made gages
The calibration/maintenance will be done for different gages. Some of our gages are holding fixtures only. In that case we will not do calibration, just maintenance to ensure that the holding fixtures haven't rusted, gotten damaged, etc................ We are actually hoping to do calibration on the gages that are being used as limit gages (is that necessary). We have done no accuracy or precision checks as far as I know. Many of these gages have been in existence for years. I guess our thought was that as long as we are using the gages to "verify" product, they should be calibrated.
Thanks for the reply. Now note, obviously if you followed my posts I have a certain affinity for the field of calibration
. So, when in doubt, calibrate it. Basically, I like the word confidence. If you have any device, tool, etc. calibrated, you have more confidence in it's performance. Now, intervals can be adjusted based on usage, possible wear, etc.
Stijloor provided some good reference material for you. Question: Were you planning on having them done outside, or do them yourself? If you found someone with good standards and such, then you might consider having them do it (at least initially). You could then see what they did on their paperwork to ascertain if you can do it in-house.
I guess I am a little uncertain what level of accuracy you are verifying on the part, and what level your tool is expected to have (and then what level your standard for the tool would need to be). As I am a current student on the Art of estimating uncertainty myself, I do wonder if you try to verify these in-house, if you would have a good enough hold on all your uncertainty to produce measurements you could be confident in.
