Meaning
Periodic verification of internal diameter measuring instruments ensures accuracy against a known master standard. Technicians perform bore gauge calibration to confirm that an instrument reads correctly within its specified range. The process involves comparing the tool against certified master rings.
Measurement Accuracy
Traceability to a national laboratory is the primary requirement for any industrial measurement tool. Through bore gauge calibration, a workshop provides evidence that its data aligns with international units of measure. Errors identified during the procedure result in adjustment or decommissioning of the device.
Precision here determines the success of interference fits and rotating assemblies.
Quality Procedure
Quality management systems require documented proof that all measuring equipment remains within acceptable tolerance limits. Regular bore gauge calibration prevents the acceptance of non-conforming parts during production runs. The frequency of this check depends on usage rates and the environment of the facility.
Records of these events are scrutinized during external audits to maintain certification. A failure to provide these records can lead to the immediate suspension of a manufacturing license.
Economic Consequence
Failure to maintain accurate instruments leads to increased scrap rates and potential product recalls. Consistent bore gauge calibration reduces the financial risk of supplying parts that do not meet the assembly specifications of the client. Distribution contracts often include clauses that require evidence of recent tool verification.
Accurate measurement protects the margin by avoiding the costs of reworking metal components.