Torque wrenches and drivers - How to perform MSA (measurement system analysis)

Elsmar Forum Sponsor

Miner

Forum Moderator
Staff member
Admin
#6
mnavarro said:
Hi, Miner. It´s a torque wrench
If the torque wrench is used as the process for torquing a fastener, you would not perform an MSA. but a capability study using a torque analyzer as the measurement device. You would perform an MSA on the torque analyzer since it is the gage.

If the torque wrench is used as an inspection device to check breakaway torque, or the torque required to additionally tighten the fastener, you would have to perform a destructive/non-repeatable MSA. You can search the threads in this forum for information in that. There have been several recent threads on destructive MSAs.
 
#7
Thank heavens.........

for that bit of advice.:applause:

How many times do folks 'calibrate' their torque drivers, instead of making them part of a maintenance program, after they've established the capability?:rolleyes:

Nice advice Miner!!:agree1:

Andy
 
#8
This has been by our customer and our TS auditor:

We did attribute MSAs on our click over type torque wrenches. Two people got a torque wrench and a torque spec. I had 10 units (that I was using for multimeter MSAs). I loosened 1 of 2 nuts on randomly selected units. Appraiser 1 checked all the nuts and listed which ones were properly torqued and which ones were not. I loosened the same set and let Appraiser B at them. Same answer. We then repeated with a different set of nuts loose and Appraiser B going first. Two Appraisers, 20 parts, 2 trials, done.

We calibrate (or validate) our torque wrenches annually against known standards. Since they cannot be adjusted, any wrench that begins to trend out of tolerance is removed from service.

We use torque specifications to get fasteners "tight" without breaking them loose from the substrate(which is sometimes steel and sometimes circuit board).

But Miner is right, too. If you have to meet a customer spec for torque, say for a safety item like a seat belt mount, I would follow his advice.
 

mnavarro

Starting to get Involved
#9
:agree1: Hi, Miner. In my case, I use it as a final inspection device and to additional tighten. I´m going look at site for more information. Thanks a lot.
 

Miner

Forum Moderator
Staff member
Admin
#10
mnavarro said:
:agree1: Hi, Miner. In my case, I use it as a final inspection device and to additional tighten. I´m going look at site for more information. Thanks a lot.
Your welcome. If you cannot find the specific information in your search, I will be happy to help further.
 
Thread starter Similar threads Forum Replies Date
J Calibration Merry Go Round - Torque Wrenches and Testers Calibration Frequency (Interval) 13
M How to perform a Gage R&R on Torque Wrenches Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 3
hogheavenfarm Is there a relatively inexpensive method of Calibrating our Torque Wrenches? General Measurement Device and Calibration Topics 7
G Gage R&R for torque wrenches - Fixed values ranging from 7.5 to 200Nm Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 1
C GR&R on Torque Wrenches - Seeking Example Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 6
C Calibration of Torque Wrenches and Screwdrivers using Torque mate 200 General Measurement Device and Calibration Topics 4
B Gage R&R - Digital Torque Wrenches - 5-50 nM range units Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 12
Y MSA - Torque Wrenches - Statistical studies that cover requirements of MSA Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 15
R Gauge R&R on pre-set torque wrench Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 2
B M85049 backshell strain relief screw torque Manufacturing and Related Processes 1
J Gauge R&R on a torque measurement Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 11
H Can a calibration lab still use ISO 6789:2003 as guide for torque calibrations Other ISO and International Standards and European Regulations 1
D Torque fractional unit of measure; cN-m or N-cm? General Measurement Device and Calibration Topics 2
L Special Processes - Technical reason concerning torque - Anaerobic compounds Manufacturing and Related Processes 10
M Gage R&R with large inter part variance - Torque Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 7
A Torque Value for Different types of Fasteners (Socket Head, Button Head, CSK) Manufacturing and Related Processes 2
D How about another torque discussion? Assembly processes General Measurement Device and Calibration Topics 9
D Yet another torque question... Assembly processes AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 2
A Does Torque Gage Need Validation? Reliability Analysis - Predictions, Testing and Standards 4
C AIAG's IATF 16949 section 7.1.5.1.1 - Torque MSA Requirement Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 10
M Chrysler is requesting a "Torque Strategy" for all Fastener Joints FMEA and Control Plans 7
T Adding an adapter to a Torque Meter to change the Range Capability, Accuracy and Stability - Processes, Machines, etc. 6
J Pneumatic & Electrical Torque Tool - Calibration/Verification of 'Power Tools' General Measurement Device and Calibration Topics 2
B How to do an MSA on an Automated Torque / Angle System Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 5
D Standard torque values for threaded fasteners AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 8
sonflowerinwales Torque of nuts and bolts, which one should you use? Manufacturing and Related Processes 8
I Torque-Tension Testing on Automotive Parts AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 4
D Torque Wrench Calibration Interval Extension with Non-Use? General Measurement Device and Calibration Topics 1
W Torque Wrench Calibration question Service Industry Specific Topics 9
K MSA for Torque Dynamometer in Stepping Motor Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 2
C Preventing Torque Wrench Deterioration Calibration Frequency (Interval) 5
B Digital Torque Meter Gage R&R General Measurement Device and Calibration Topics 4
S Which Torque Meter do I choose based on CpK studies ? Capability, Accuracy and Stability - Processes, Machines, etc. 2
A Torque Wrench Calibration/Verification General Measurement Device and Calibration Topics 24
Q Need help on MSA study on a torque analyzer Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 3
J How to measure Loosening and Tightening Torque (VDA 5 - MSA) Quality Tools, Improvement and Analysis 5
Proud Liberal Torque Measurement Around A Rivet Inspection, Prints (Drawings), Testing, Sampling and Related Topics 2
R Torque Tester Calibration Traceability and Certificate question ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 3
I Should we immediately have recalibrated our Digital Torque Gauge? IATF 16949 - Automotive Quality Systems Standard 5
L Pneumatic Torque Wrench Calibration Procedure Calibration and Metrology Software and Hardware 1
W Measuring the Dial Torque of Plastic Insulin Pen devices Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 4
B Computing Failure Torque for Helicoil Threads in 6061-T6 Aluminum Design and Development of Products and Processes 5
D How to conduct a Gage R&R on DC Tools to Torque Bolts Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 5
S Motor Stall Torque Failure after Changing Supply of Cyclindrical Gears Manufacturing and Related Processes 1
C How to Calibrate and Verify Torque Multiplier Gages General Measurement Device and Calibration Topics 6
C Control Plans - Evaluation Measurement Technique Column - Torque Control FMEA and Control Plans 2
S ISO 9001 Section 7.6 - Customer has supplied torque specifications ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 16
Q Defining Torque Requirement for Screwing Power Module onto Heatsink Manufacturing and Related Processes 2
R Gage R&R for Torque Device (Non - Replicable Measurement Systems) Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 3
T why CPK <1.0 regarding two pieces of control charts of torque wrench? Statistical Analysis Tools, Techniques and SPC 2

Similar threads

Top Bottom