The Importance of Micro-Nano Machining Technology in the Automotive Industry
With the continuous deepening of the upgrading of Internet of Things technology, the automobile manufacturing industry is moving towards intelligence, and advanced manufacturing technologies represented by micro-nano processing technology are constantly promoting application innovation in the automotive field.
1.Overview of Micro-Nano Processing Technology
Relying on precision processing equipment and precision control systems, micro-nano machining technology can achieve micro-nano surface treatment of various materials such as aluminum, copper, nickel, stainless steel, and manufacture high-precision optical components.
Among them, free-form surface micro-nano machining can define the part coordinate system and the machine tool coordinate system through the multi-axis linkage characteristics of slow tool servo or fast tool servo, and perform free-form surface or asymmetric complex surface processing, further enhancing the application value of the product and expanding its application range in cutting-edge fields such as automotive.
2.Application of Micro-Nano Processing Technology in the Automobile Industry
1) Smart cockpit
As an important part of the future smart cockpit, the HUD system uses micro-nano machining technology to achieve system reliability, further improve driving safety, and bring a better immersive experience to the driver.
2) Autonomous driving
Nowadays, autonomous driving has become a global hot spot. As the “eyes” of the autonomous driving system, the lidar sensor equipped with micro-nano machining technology can help the autonomous driving system accurately measure distance and perceive the surrounding environment.
3) Automotive interior
Micro-nano machining technology combines design freedom and high reliability, meets the needs of high quality and high efficiency of automotive interiors, and is increasingly widely used in this field.
4) Automotive headlights
The appearance design and manufacturing requirements of automotive headlights are very high. Micro-nano machining technology can help complete various processing of headlights to ensure the beauty and high performance of headlights.
5) Vehicle fatigue monitoring system
The micro-nano machining vehicle fatigue monitoring system has high accuracy and clear imaging. It can infer the driver’s fatigue state based on the driver’s facial features, and issue alarms and take corresponding measures to escort the driver’s driving safety.
3.Difficulties of free-form surface micro-nano machining technology
Free-form surface micro-nano processing technology integrates the latest achievements of contemporary disciplines, and meets the needs of vehicle-mounted systems and core optical components for high-precision and high-reliability surfaces. At the same time, the constraints in the processing process are more stringent, the processing technology is more difficult, and the processing process is more complicated.
Stress deformation, tooling design, tool wear, processing environment, etc. in the free-form surface processing process may affect the imaging quality of the optical surface.
Especially when processing large parts, due to the large amount of cutting material, the workpiece will produce a large stress, which has a great impact on the accuracy of the workpiece. The control of stress and deformation is particularly critical.
Through repeated debugging and experimental verification, improving the processing technology and optimizing the flexible clamping design, it can not only improve the force and deformation of the workpiece, but also improve the surface morphology accuracy, and complete the mass production of high-precision large-caliber ultra-thin free-form surface parts.
4.Summary
Nowadays, micro-nano processing technology, as a key technical support in emerging fields, is promoting the development of disciplines such as mechanics, electronics, optics, sensing and measurement technology, and materials science. In view of this, countries around the world attach great importance to it as an important indicator of a country’s scientific and technological level and comprehensive national strength.