Torque Auditing Examples

Static Auditing Example

If it is not practical to dynamically monitor a tool on an ongoing basis, a static audit can be implemented.

As previously discussed, static auditing can be done after a fastener has been installed.

Static audits are performed downstream from the installation process. Usually, checks are made on a variety of fasteners as part of an inspection route by QA personnel.

Using the same fastening example discussed in the dynamic example, the data collector would be set up to interface to a hand-held torque wrench instead of an in-line transducer.

The significant difference in the setup is the use of the breakaway algorithm instead of peak.

The wrench is then used to apply torque (usually clockwise) to the fastener. The operator applies a steadily increasing amount of force until fastener movement is felt, and the pressure is then released.

The data collector then stores the torque value at which breakaway occurred.

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