Scott.Hilton
Starting to get Involved
So we have a supplier who has chosen to save money by not calibrating their ID mics. The practice they have been using and will not change, is that on ID's they take the "measurement" with the ID mic that is not calibrated, remove the ID mic from the bore and then gage an OD mic over the ID mic for the reading.
This is on ID's that have total tolerances of .003-.005 metal components. I find this to be not only a poor practice, but an unacceptable one. I believe that in order to be accurately recorded final dimensions they should be taking direct measurements and not introducing variance. However, the person over supplier quality says this is a perfectly acceptable industry practice.
I am newer here, but not new to the industry (Oilfield) and I have been through enough customer audits that I would be be both embarrassed if this was my personal practice and I would also expect a corrective action from my customer. So I am concerned with this stance.
That being said, I am human and can be wrong. So, does anyone any points of clarification or industry standards they could point me towards in researching this method of inspection? The drawings do not call out a specific industry standard to use, so any insight would be greatly appreciated.
SH
This is on ID's that have total tolerances of .003-.005 metal components. I find this to be not only a poor practice, but an unacceptable one. I believe that in order to be accurately recorded final dimensions they should be taking direct measurements and not introducing variance. However, the person over supplier quality says this is a perfectly acceptable industry practice.
I am newer here, but not new to the industry (Oilfield) and I have been through enough customer audits that I would be be both embarrassed if this was my personal practice and I would also expect a corrective action from my customer. So I am concerned with this stance.
That being said, I am human and can be wrong. So, does anyone any points of clarification or industry standards they could point me towards in researching this method of inspection? The drawings do not call out a specific industry standard to use, so any insight would be greatly appreciated.
SH