Calibration Of Plug gages (G0-No Go Tri lock gages)

DietCokeofEvil

Trusted Information Resource
#11
Depending on what accuracy you need to hold, I think your best bet would be to use a micrometer or send the plugs out for calibration. I've never heard of checking a plain plug with a plain ring- there is too much room for error. You could either pass a bad part or fail a good part if your tolerance band doesn't match up.
 
Elsmar Forum Sponsor

Wayne

Gage Crib Worldwide
#12
... I've never heard of checking a plain plug with a plain ring...
There is a reason for that. It does not work, but many have tried it.

Take this extreem example...
Get a 1" pin and make a perfect master ring gage for it. The two will assemble just fine. The pin goes into the ring all is well.

Now take the pin and bring it over to the grinder and grind it down real good. When you bring it back to the ring it will still fit in the ring, so all must be still good:lmao:

Well you protest, it will feel sloppy. I will agree that it will feel sloppy, but with your poorly calibrated fingers how can you tell how much slop is too much slop?
 
Thread starter Similar threads Forum Replies Date
C Calibration of Master Thread Plug Gages General Measurement Device and Calibration Topics 2
S NPT Thread Calibration Method - NPT Taper Thread Plug Gages General Measurement Device and Calibration Topics 9
T Calibration and Control - Need help with plug, ring, and thread plug gages General Measurement Device and Calibration Topics 12
T Plug Gages - How people are maintaining calibration on plug gages General Measurement Device and Calibration Topics 3
S Failed Calibration - Plain Plug Gages - They grow! General Measurement Device and Calibration Topics 24
T Plug Gage Calibration Calibration and Metrology Software and Hardware 1
L Calibration of Plug Gauges - Tolerancing General Measurement Device and Calibration Topics 1
D Indysoft Calibration Software Thread Plug Template Help General Measurement Device and Calibration Topics 2
G Gage Recall Analysis - Threaded Plug Gage has failed Calibration General Measurement Device and Calibration Topics 10
M Thread Plug Gage - Calibration Frequency ISO 13485:2016 - Medical Device Quality Management Systems 1
L Calibration Procedure for Internal Spline Plug Gage Needed General Measurement Device and Calibration Topics 4
R Thread Measurement - Basics on Thread Plug and Ring Calibration General Measurement Device and Calibration Topics 5
B Method for Calibration of Thread Plug Gauges General Measurement Device and Calibration Topics 13
R Calibration Check Points for ACME & LPT Thread Plug & Rings General Measurement Device and Calibration Topics 5
P Plug Gage Calibration Report does not include actual data - ISO 9001:2000 section 7.6 General Measurement Device and Calibration Topics 3
J Confused about Calibration Tolerances of Plug Gauge, Ring Gauge & Snap Gauge General Measurement Device and Calibration Topics 4
R Setting Calibration Tolerance on Gauges - Oven Calibration and Stepped Plug Gage General Measurement Device and Calibration Topics 10
T Threaded plug and ring gage calibration procedures General Measurement Device and Calibration Topics 4
Geoff Cotton ISO 6H Go Screw Plug Gauges Calibration to ANSI / B1.16M vs BS 3643 General Measurement Device and Calibration Topics 5
P Thread plug gauge failed calibration - Must I remeasure everything measured with it? General Measurement Device and Calibration Topics 23
D Plug Gage Calibration - Manufacturer's Certification vs. Calibration Laboratory General Measurement Device and Calibration Topics 2
lanley liao Question regarding the calibration of monitoring and measure equipment. Oil and Gas Industry Standards and Regulations 0
N IATF Calibration Lean in Manufacturing and Service Industries 3
Q Do these certificates of calibration meet ISO 9001 requirements for traceability to NIST? ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 10
M Load Cell Calibration using a totalizer on a flow meter General Measurement Device and Calibration Topics 0
E Calibration Records needed ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 1
D Limited Range Calibration - 5000 lb Industrial floor scale General Measurement Device and Calibration Topics 3
D Calibration of Small Scales General Measurement Device and Calibration Topics 26
C How to Establish the Calibration & Measurement Capability (CMC)? ISO 17025 related Discussions 1
I IQOQ or just initial calibration required? General Measurement Device and Calibration Topics 3
B Calibration in real life ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 3
J Calibration cycle for monitoring & measuring tools used in medical device manufacturing General Measurement Device and Calibration Topics 5
A Is calibration of test weight required General Measurement Device and Calibration Topics 4
S Calibration Frequency for Slip Gauge Kit used for CMM Calibration? General Measurement Device and Calibration Topics 0
S Calibration/Verification of customer fixtures IATF 16949 - Automotive Quality Systems Standard 6
Ron Rompen Calibration by manufacturer ISO 17025 related Discussions 4
Q Calibration verification records 7.1.5.2.1 IATF 16949 - Automotive Quality Systems Standard 2
B AS9100D 7.1.5.2 Calibration or Verification Method using outside cal lab AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 1
W Next Calibration Due Date Calibration Frequency (Interval) 5
S Where do l get calibration standards to run a calibration lab? Other ISO and International Standards and European Regulations 2
A OEM On-Site Calibration issues during Covid19 ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 12
D Calibration tolerance question using Pipettes Medical Device and FDA Regulations and Standards News 1
M Calibration Certificate Result issued by an accredited external laboratory General Measurement Device and Calibration Topics 9
G Calibration of "Master Parts" Used as Gauges Calibration Frequency (Interval) 5
R Calibration lab environmental monitoring General Measurement Device and Calibration Topics 4
G Calibration of Rotronic probe but not digital readout? General Measurement Device and Calibration Topics 3
F Standard Calibration Procedures: Recommended Practice ISO 17025 related Discussions 0
T Temperature Requirements For In House Calibration - AS9100 AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 16
B Gage calibration frequency, ISO and IATF - What are the requirements Calibration Frequency (Interval) 3
Crimpshrine13 Laboratory Scope - Calibration vs. Test Methods - IATF 16949 IATF 16949 - Automotive Quality Systems Standard 3

Similar threads

Top Bottom