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Quality control: processes and technologies in the automotive industry

Measurement News from Q-Tech

Quality is the foundation of the automotive industry. Every detail, every production step, every innovation and decision bears the seal of quality. The importance of quality control in the automotive industry is immense. It is meticulously implemented and is constantly faced with new challenges and technological developments. From the assembly lines running in car factories to the pioneering technologies and companies that ensure the industry's exacting standards are always met. This is where an external service provider can provide valuable support, using state-of-the-art measurement technology to make a decisive contribution to effective quality control. 

How does a quality control service provider benefit the automotive industry? A quality control service provider offers significant advantages to the automotive industry. By specializing in quality testing, they can provide highly competent expertise and the latest technological solutions. By outsourcing this important task, car manufacturers can use their resources more efficiently and focus on their core competencies while ensuring product quality.

Quality control in the automotive industry - an overview

The automotive industry has constantly evolved since its inception and is now one of the most demanding and innovative industries. One of the key aspects of this constant evolution is the unwavering attention to quality - a cornerstone of every production line, every component and every decision made during the vehicle manufacturing process. Quality is not an optional luxury, but an essential ingredient and prerequisite for success in today's highly competitive automotive market. 

The role of quality control in automotive production

The quality of a car determines not only its value, but also its performance, reliability and safety. These depend on a wealth of components, all of which must be perfectly coordinated. In the automotive industry, quality control is therefore not just a step in the production process, but an integral part of every phase - from design to production to final inspection.

The role of quality control in automotive production cannot be overestimated. It not only determines the safety and reliability of the finished product, but also influences brand reputation and customer confidence. A vehicle is made up of thousands of parts, all of which must be coordinated to ensure optimum performance and safety. Quality control ensures that each of these parts meets customer-specific requirements and that the end product meets consumer expectations.

The automotive industry adheres to the strictest quality standards, which serve as a benchmark for other industries. These standards define precise requirements for every element used in a vehicle and their compliance is closely monitored. This is particularly important for safety-critical parts, which undergo rigorous testing to meet the highest quality requirements.

Quality control also plays a crucial role in the automotive industry's supply chain. Vehicle manufacturers often only produce a small proportion of the parts used in a vehicle themselves. The remaining components are sourced from a large number of suppliers, all of whom must meet the industry's strict quality requirements. Effective quality management is therefore crucial for the entire supply chain.

The implementation of quality control requires constant improvement and adaptation to the dynamic conditions of the market and technology. To ensure this, leading companies in the industry have developed sophisticated quality management systems and standards. An excellent example is the IATF 16949:2016 standard, which sets strict requirements for product quality and production management. Companies that comply with this standard demonstrate their commitment to high quality standards and continuous improvement.

Quality control challenges in the automotive industry 

Quality assurance and control is a constantly growing challenge, especially in microelectronics . This is becoming increasingly important in the automotive industry. Several factors contribute to this challenge and it is important to identify them in order to understand the role that modern inspection techniques such as x-ray inspection and computed tomography play in this area. The key areas are listed below:

  1. Increasing miniaturization and complexity of electronic components: With each new product generation, the requirement for miniaturization and complexity of electronic components increases. This development requires more sophisticated in-process quality control.

  2. Importance of error minimization: Due to the smaller size of the components, any error can have a significant impact. Even a small error can have a significant impact on the overall performance of the product.

  3. Challenges due to design changes: Design changes can often cause unexpected complications and quality control challenges.

  4. Development of new electronic housings (packages): New packages contain all the necessary information in ever smaller spaces and in three-dimensional stacks. These technologies pose additional challenges for quality control.

  5. Challenges of conventional inspection methods: Previous inspection methods were based on optical, hand-held or destructive methods. These are expensive, time-consuming and often subjective.

  6. Introduction of strict regulations: New regulations, such as the RoHS and WEEE directives, have significantly changed the manufacturing process for electronic components and created new challenges for quality control.

  7. Value of quality: Quality, flexibility and modularity are essential in the production of microelectronics. The timely detection of defects is becoming increasingly important in order to compensate for rising production costs.

  8. Advantages of modern X-ray inspection: Modern X-ray inspection systems offer a number of advantages, including the ability to precisely evaluate even the most complex microelectronics.

  9. Advantages of computed tomography (CT) and tomographic imaging: These methods enable non-destructive and accurate testing of components, saving time and money.

  10. Importance of automation: With the increasing complexity and miniaturization of components, automation is playing an ever greater role in quality control. Automated systems are often able to detect defects faster and more accurately than human inspectors.

Modern measuring techniques and tools for quality control - the Q-Tech service 

Q-Tech is a family-run precision company with a clear vision: to provide internationally recognized measurement experts who make the products of tomorrow possible. As a service provider in metrology, Q-Tech offers three clearly defined services: Measurements as a service, support with metrological problems and training, and training in all aspects of metrology. With Q-Tech and the machines from ZEISS, you benefit from first-class measurement services that are specially tailored to the requirements of the automotive industry.

Q-Tech and the measuring machines from ZEISS

Would you like to work with us? Then you can rely on the following points. 

  • Flexibility: Rely on the flexibility of Q-Tech. We provide optimum support for your performance.

  • Accreditation: With accreditation in accordance with DIN EN ISO / IEC 17025 for coordinate measuring machines and computer tomographs, we guarantee correct and reliable measurement results.

  • Understanding: Take advantage of our comprehensive process understanding and our consulting services and training offers.

  • Personal support: At Q-Tech, you have a dedicated contact person who looks after you personally.

  • Wide range of measuring technologies: We offer the right measuring technology for almost every shape, size and material.

  • Efficiency through automation: Our automation technology enables fast and efficient measurements.

As a leading measurement service provider, we understand that providing first-class quality control services requires the use of state-of-the-art technology. This is why we have chosen to work with ZEISS, one of the world's leading suppliers of precision measuring machines.

With the wide range of ZEISS machines that we use at Q-Tech, we can perform a diverse range of measurements while ensuring the highest accuracy.

In our portfolio we have:

  • The ZEISS METROTOM 800 and ZEISS METROTOM 1500 G3 computer tomographs, with which we can determine precise 3D target/actual deviations of industrially manufactured products. These devices are essential for applications such as cavity testing.

  • The ZEISS PRISMO ULTRA and ZEISS PRISMO VERITY 3D coordinate measuring machines, which perform high-precision measurements of dimensional and form deviations. With an integrated rotary table and the use of the powerful CALYPSO measuring software, the highest measuring accuracies are also guaranteed here.

  • The ZEISS ACCURA 7 and ZEISS ACCURA II 3D coordinate measuring machines, which are equipped with various probes and probes for a wide range of measuring tasks.

  • The ZEISS O-INSPECT 863, which combines tactile and optical measurement technologies to offer versatile measurement functions in one device. This machine allows us to perform both tactile surface inspections and optical inspections.


Our test laboratory is DAkkS-accredited. By using ZEISS technology, we are able to ensure reliable, accurate and efficient quality control that meets the needs of our most demanding customers in the automotive industry.

The future of measurement technology in the automotive industry - the AI revolution

The use of artificial intelligence (AI) in the automotive industry, particularly in the areas of measurement technology and quality control, leads to a significant improvement in the efficiency and quality of production. This technology is therefore an important component of Industry 4.0. 

Metrology is a fundamental part of quality management. Traditionally, this has involved the use of physical measuring devices and sensors to monitor various aspects of the production process. However, the introduction of AI and machine learning into this process allows for even more precise measurement and analysis.

Among other things, Audi has developed software based on an artificial neural network that is able to detect the finest cracks in sheet metal parts. The software analyzes and measures cracks on a microscopic level, far beyond the capabilities of conventional optical measurement techniques. The process leads to a significant improvement in quality, as these defects can be detected and rectified at an early stage.

Furthermore, the use of AI in quality control enables faster and more effective inspection of components. Among other things, BMW uses an AI application that evaluates images of components in ongoing production and compares them in real time with hundreds of other images of the same sequence . This automated inspection can detect the smallest deviations from the standard and check whether all the intended parts have been installed and assembled correctly.

The combination of AI with measurement technology leads to improved precision and efficiency in quality control. The smart measurement and monitoring systems have the ability to collect, analyze and interpret data from various sources. This allows them to detect deviations that would be difficult for human inspectors to recognize. As a result, problems can be detected and rectified earlier, leading to a higher overall quality of the vehicles produced.

The benefits of AI in metrology and quality control in automotive production are clear: it creates more accurate monitoring and analysis, faster identification and resolution of issues and higher quality end products. As AI technology continues to advance, this role will only increase and it will continue to be a central part of the automotive industry.


Quality control plays a crucial role in the automotive industry. It is key to ensuring the performance, reliability and safety of a vehicle and has a significant impact on brand reputation and customer confidence. By using modern testing methods and advanced technologies such as X-ray inspection and computed tomography, effective quality control can be carried out to identify even the smallest defects in microelectronics.

However, the increasing complexity and miniaturization of components, as well as new design changes and stricter regulations, pose ever greater challenges for quality control. Automation is playing an increasingly important role here in order to carry out precise, fast and efficient inspections.

A look into the future shows that artificial intelligence and machine learning are increasingly being used in quality control to achieve even more precise measurement and analysis. With these technologies, defects can be detected and rectified even earlier, leading to a significant improvement in quality.