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CQI-9 update – 4th edition

AIAG recently released 4 editions of the CQI-9 Special Process: Heat Treat System Assessment. The update of the standard is to provide a common approach to the heat treatment management system.

CQI-9 covers heat treatment processes used in the automotive industry.

The most important changes in the 4th edition of the requirements:

  • Introducing best practices.
  • Requirements changes and modifications and their explanations for the delivery organization to be taken into account in the self-assessment.
  • Refinement of the HTSA auditor qualification.
  • Updated pyrometry reporting requirements.
  • Transfer of the RTD to the thermocouple section.
  • Defining transition periods in the calibration, SAT and TUS sections.
  • The guidelines have been extended and the requirements have been refined for cases where traditional TUS testing is not possible or practical due to furnace design features (e.g. property testing).
  • The formula for calculating the required number of TUS test thermocouples for large furnace volumes has been changed.
  • The HTSA format has been improved.
  • The requirement for calibration for clerks has been removed.

More about the manual: AIAG Publications

Training on the topic: CQI-9

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