Introduction to CQI standards: what is CQI-9, CQI-11, CQI-12 and CQI-29?

Heat treatment is a key element in car manufacturing, among other things. Metals, which are basic materials in the automotive industry, obtain their main properties, such as hardness and strength, through proper heat treatment. Imagine a situation in which this process is not properly controlled - this can lead to disastrous consequences, such as engine damage. Therefore, strict requirements for heat treatment management and quality improvement, called CQI or the AIAG standard, have been introduced.

CQI-9 deals directly with heat treatment, while other standards, such as CQI-11, CQI-12 and CQI-29, address other aspects of manufacturing, such as plating, surface coating and brazing processes. The current fourth edition of CQI-9 is the result of collaboration between various key players in the industry, including OEMs, first-tier suppliers, heat treatment companies and calibration companies.

Challenges of implementing the CQI standards

Although the introduction of these standards was a necessity, they are not without challenges. CQI-9, CQI-11, CQI-12 and CQI-29 impose stringent requirements on manufacturing companies using thermoprocess technology. These include detailed process monitoring to ensure that plants and equipment are operating properly, and that required temperatures and intervals are maintained. This involves significant cost and effort on the part of manufacturers.

New ISO/FDIS 20431 standard

In addition, another regulation, ISO/FDIS 20431, is on the horizon, introducing innovative principles in the area of managing product heat treatment processes. A key element of this standard is the definition of process management criteria that any company specializing in heat treatment must meet to ensure that products meet customer expectations. While it may seem that ISO/FDIS 20431 is mainly aimed at the automotive and aerospace sectors, it is actually applicable to a wide variety of industries including energy, construction, electronics and metallurgy.

Implementation steps for CQI-9, CQI-11, CQI-12 and CQI-29 standards - from heat treatment process evaluation to continuous improvement

Based on years of experience and numerous interactions with businesses, we understand that there are many uncertainties regarding the practical application of the AIAG CQI-9, CQI-11, CQI-12 and CQI-29 requirements. To turn these guidelines into practical steps, we recommend:

1. Organizing an in-depth process audit conducted by an independent heat treatment specialist to evaluate the process and spot hidden opportunities for improvement in accordance with AIAG requirements.
2. Converting identified areas of improvement into specific action plans.
3. Implementation of the planned activities, which include the creation of appropriate instructions and documentation.
4. Educating the team on the correct use of implemented management systems and the benefits of CQI and its impact on process stability and capability.
5. Strengthening auditors' knowledge of CQI - 9, CQI-11, CQI-12 and CQI-29 .
6. Educating technical personnel on the control and operation of heat treatment systems.
7. Organizing hands-on training on existing heat treatment equipment.
8. Combining auditing, employee education and thorough inspection of heat treatment system.
9. Updating the technology used in measurement and control systems.
10. Optimize thermal process procedures and settings.
11. Maintain and continuously improve the management system of the entire heat treatment process.

Contact us - we offer support in SAT and TUS testing according to CQI-9 and selection of PID parameters in an industrial furnace.