The vehicle body makes up roughly 40% of the total car weight, making it a key area for achieving overall vehicle lightweighting. As environmental concerns and fuel efficiency become more pressing, reducing the weight of the car body has become one of the most important and rapidly evolving areas in automotive technology in the 21st century.
Lightweighting the car body is not just about using lighter materials—it's a comprehensive engineering challenge that involves both material innovation and structural optimization. Two main strategies are used: first, replacing traditional steel with advanced, high-strength lightweight materials; second, redesigning the structure to make parts thinner, more compact, and more efficient, while maintaining or even improving performance. This includes techniques like hollowing, miniaturization, hybrid structures, and improved manufacturing processes.
These two approaches are closely linked. To achieve true lightweighting, it's essential to combine material substitution with structural improvements. This ensures that critical properties such as strength, rigidity, durability, impact resistance, and vibration control meet or exceed design requirements, all while significantly reducing the overall weight of the vehicle.
Among the many materials available, aluminum alloys stand out due to their excellent combination of light weight and high strength. They have become a top choice for modern car body manufacturing. A typical aluminum car body is built using a space frame structure made from various complex extruded aluminum profiles. Die-cast aluminum components are used for joints, while body panels are formed from aluminum sheets through stamping. Some reinforcing parts are also made from extruded aluminum profiles. The connection between the panels and the frame is achieved using rivets, resulting in a strong and durable overall structure.
According to industry experts, aluminum body manufacturing technology is a crucial component of energy-efficient vehicles and falls under the "Light Alloy Materials Manufacturing Technology" category. It is one of the ten key technologies identified by major national science and technology projects. The development and application of this technology have significantly boosted China’s position in the global automotive industry, supporting energy conservation, environmental protection, and the long-term sustainable growth of the sector.
Resin diamond cutting resin is a kind of abrasives and tools made of low temperature curing binder. Features: cutting processing, low calorific value, good self-sharpening, not easy to block, high surface finish of processed workpiece. Application: used in optical glass, glass tube, glass rod, quartz glass, glass fiber, semiconductor, hard alloy, ceramics, zirconia ceramics, circuit board (PCB) and other hard and brittle materials cutting or slotting.
It is mainly used for cutting or grooving ordinary glass, glass rod, glass Mosaic, ceramic plate, sapphire, stone slotting, semiconductor material, brake pad and other materials.
Advantages of electroplating diamond products ①Electroplating process is simple, less investment, convenient manufacturing; No need to repair, easy to use; The single layer structure determines that it can reach a very high working speed, which has been as high as 250 ~ 300m/s abroad; (4) Although there is only a single diamond, it still has enough life; ⑤ For roller grinding wheel with higher precision requirements, electroplating is the only manufacturing method.
Because of these advantages, high speed and ultra-high speed grinding with electroplated wheel occupies an undisputed dominant position.
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