To accomplish this test the digital torque wrench must be equipped with a torque sensor and a gyroscope for angle measurement, with an algorithm of automatic recognition of the breakaway and residual torque in both cases shown above. In fact, a higher torque is required to break the glue (or to overcome friction due to rust in the joint), then the torque drops down to resume growing with the rotation. In some cases, for example when there is a drop of glue which locks the screw, the breakaway does not coincide with the residual torque. With this strategy, a digital torque wrench applies torque to rotate the screw further, and measures the torque at the point where the screw starts moving. The breakaway is the preferred method for the measurement of residual torque. The data must tracked in a database with a management software producing statistical analysis and reports, preventing errors with statistical process control. To evaluate the residual torque on the joint requires a tool (for example digital torque wrench) featuring one or more residual torque check strategies. How much of the preload applied is left inside the junction? Tighten a junction properly is a fundamental step in ensuring the quality of a production process.Īt the end of the production line, there is a crucial step that needs to be done for a complete quality control system: the measurement of residual torque.Ĭhoosing the correct tightening strategy ensures that the joint has been tightened to specification, but what happens at the junction after the tightening remains unknown. SCS Explorer – Program and download data from SCS instruments.Data.Pro – Torque/angle acquisition Software.SQnet plus – Production line quality control management software.VPG plus – Visual production and rework guide.Torque angle transducers and joint simulators.Universal Production Integration Solutions.MTC-P Torque angle multichannel analyzer.FMS – Online Rework, Backup, Pilot/Beta Build, Repair Station.FTA – Automatic Torque/Angle Wrench Tester.Microbench – Static Transducers Micro test Bench.FTY – Power tools and torque wrench tester.
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