Auto parts inspection services refer to the comprehensive assessment and evaluation of various components, parts, or products within the manufacturing industry. Inspection services involve a systematic examination to ensure that the manufactured parts meet the required specifications and quality standards. This essential process plays a pivotal role in maintaining product integrity, minimizing defects, and ensuring customer satisfaction.

At SIT, quality-assurance inspection of automotive parts made of metals and polymer …
automotive parts inspection is the systematic process of evaluating parts during manufacturing or maintenance to ensure they meet quality, safety, and performance standards. It involves various checks, from visual and dimensional tests to complex functional and material testing, to identify defects, verify consistency, and prevent potential issues like recalls and safety hazards.

Importance of automotive parts inspection

Automobiles are representative products of the manufacturing industry, and it is said that there are about 30,000 component parts. It is said that the number of parts will be reduced to about 20,000 due to the transition from gasoline cars to EV vehicles, but it is still a product composed of a huge number of parts.
Automotive parts inspection is an important part of protecting the safety of people in and around them, and auto parts manufacturers must ensure the quality of parts through rigorous inspections. In recent years, quality requirements from end users and automobile manufacturers have been increasing, and total inspections are becoming commonplace. It can be said that automotive parts manufacturers should reconsider their inspection methods.

Key Aspects of Automobile Parts Inspection

There are several types of inspection methods for automotive parts. The following is a summary of the features of each.

> Visual inspection
Visual visual inspection is still common in the inspection of automotive parts. The content is that the inspector checks the parts visually and palpation for scratches and defects.
The advantages of visual inspection include the ability to reduce initial costs without the need for special equipment, the ability to move parts freely for inspection, and the ability to flexibly change the inspection content.
On the other hand, there are disadvantages such as the inability to make objective judgments and the tendency for human variation to occur, the possibility of missing scratches and defects due to mistakes, and the time required for inspection. In recent years, an increasing number of companies are working on the automation of visual inspections with the aim of improving inspection quality and solving labor shortages.

> Visual inspection with a measuring instrument
The mainstream inspection of automobile parts is visual inspection using various measuring instruments. Using measuring instruments, we check whether the dimensions and shape of parts are finished according to standards, and check for scratches and defects.
The advantages of visual inspection using measuring instruments include the ability to automate and speed up inspections, and the ability to make objective judgments based on numerical values. When inspecting products that require high quality, such as automobile parts, visual inspection with a measuring instrument is preferable to visual inspection.
On the other hand, there are disadvantages such as difficulty in responding to unexpected problems and the cost of introducing and maintaining measuring instruments.

> Performance inspection
Depending on the type of automobile part, not only the appearance inspection but also the performance inspection may be required. For example, structural parts are inspected for their durability and durability, such as fatigue strength, heat resistance, and corrosion resistance. In addition, with the computerization of automobiles, there are more opportunities to evaluate the electrical characteristics of electronic components and conduct continuity inspections.
Performance inspections are often carried out by sampling process, but there are an increasing number of cases where full inspections are required for performance inspections of electronic components. In the future, performance inspections by automobile parts manufacturers may become more common.

 Points to improve the efficiency of automotive parts inspection.Here are two key points to improve the efficiency of automotive parts inspection.

> Automate inspection inline
At automobile parts manufacturing sites, which require mass production and high-quality manufacturing, there is a limit to visual inspection by human hands. In order to improve productivity and quality, measuring instruments should be integrated into the production line and inspection should be automated in-line.
Benefits of inline inspection include:
Faster inspection speed and increased productivity
Quality assurance can be performed by total inspection.
No labor costs and reduced human error and variability
Immediately identify abnormalities in the production line and improve them

> Analyze and make improvements based on data
In order to improve the quality of manufacturing, we must switch from testing based on human senses to testing based on numerical values and other data.
Conducting inspections based on data not only unifies the criteria for pass/fail judgment, but also makes it possible to grasp and predict defect trends from the transition of data. If you make improvements based on this information, you will be able to prevent problems from occurring and eliminate waste in the production line.

Examples of automotive parts inspection

How do auto parts manufacturers actually conduct inspections? Here are some examples of automotive vehicle inspections.

> Automation of visual inspection using measuring instruments
Measuring instruments equipped with high-precision cameras can automatically measure the presence or absence of scratches on automotive parts. Depending on the measuring instrument, the depth of the wound can also be measured in combination with laser inspection, and a pass/fail judgment can be made based on quantitative measurement results.

>Automation of assembly and inspection by robot
As mentioned above, in-line is important for improving the efficiency of automotive vehicle inspection. As shown in this video, if bulk picking, assembly, and inspection can be completed on one production line, quality assurance through total inspection can be performed while increasing productivity.

> Visual inspection of complex shapes by robots
For the inspection of automobile parts with complex shapes, the use of articulated robots is effective. Various sensors are mounted at the tip of the robot arm, and by moving the arm freely, it is possible to check for defects at multiple inspection points at once. Parts with complex 3D shapes cannot be completely confirmed by inspection from one direction, and it may be necessary to inspect them in multiple parts. However, if the robot can move freely, it is efficient because it can be inspected all at once in one process.

Why It is Important

Safety: Critical safety components were found by SIT Engineer expert which likes brakes and steering must be free from defects to prevent accidents.
Quality control: SIT Engineer experts ensure that parts are consistent and meet the required quality standards, which is especially important with increasing customer expectations.
Cost reduction: Identifying defects early in the process prevents costly production delays, recalls, and warranty claims by SIT.
Reliability: SIT Inspection Service helps to ensure the final vehicle is reliable and performs as expected over its lifetime.

Benefits of Auto Parts Inspection Services at SIT

SIT as one of the primary benefits of auto parts inspection services is ensuring product quality. By carefully inspecting auto parts, manufacturers can address problems before they impact the production process or customer satisfaction.

Additionally, Auto parts inspection services can lead to cost reductions. By locating and fixing defects early on in the manufacturing process, manufacturers can avoid production delays or customer returns. Effective quality assurance also helps manufacturers optimize their production processes and improve overall efficiency, leading to more cost savings in the long run.

Another advantage of quality assurance for auto parts is risk mitigation. Thorough inspections help identify potential risks like structural weaknesses. By addressing these risks during the inspection process, manufacturers can prevent serious product failures that lead to safety hazards and liability issues.

Furthermore, quality assurance helps manufacturers maintain compliance with industry regulations. Each industry has specific quality standards and regulatory requirements that manufacturers must meet. By implementing parts inspection services, manufacturers can demonstrate their commitment to producing safe and compliant products.