Automotive castings enter the era of comprehensive lightweighting

Automotive castings enter the era of comprehensive lightweighting

Due to carbon emissions and air pollution, the growth rate of traditional diesel locomotives is limited under the guidance of the dual carbon policy. At present, China's automobile industry is generally in a period of overlapping and converging industrial cyclical decline and technological change. Although the growth rate has declined, and there has even been significant negative growth under the influence of the COVID-19, China's market is vast, and the automobile industry has great development potential. Automobile exhaust emissions have become one of the important sources of various pollutants. Today, precision casting manufacturer Tianyao Metal will briefly explain the aspects of lightweight automotive castings.

Environmental protection issues are constantly becoming prominent, and the battle to defend the blue sky requires low emission development. The lightweight manufacturing technology of automobiles can effectively achieve the goal of energy conservation and emission reduction. Automotive lightweighting integrates structural lightweight design technology with various lightweight materials and manufacturing technologies to achieve product weight reduction while meeting the requirements of automotive use, safety, and cost control. As one of the common basic technologies of energy-saving vehicles, new energy vehicles, and intelligent connected vehicles, lightweight is an important way to effectively achieve energy conservation and emission reduction in automobiles. The Aluminum Association points out that for gasoline powered vehicles, every 10% weight loss corresponds to a 3.3% reduction in fuel consumption; For diesel powered vehicles, every 10% reduction in weight corresponds to a 3.9% reduction in fuel consumption.

Aluminum alloy plays an important role in new lightweight materials. Replacing steel and cast iron with aluminum alloy can reduce weight by 40% -60%. Casting aluminum alloy can replace steel in automotive components, including engine blocks, wheels, suspension system parts, body, heat exchangers, etc. Research has shown that for every 1kg of aluminum used in a car, it can reduce its own weight by 2.25kg. According to the "Roadmap 2.0 for Energy Conservation and New Energy Vehicle Technology", it is proposed to focus on the development needs of future energy-saving vehicles, new energy vehicles, and intelligent connected vehicles. The direction of lightweight is to form a lightweight alloy application system, break through technological barriers, and improve the lightweight process.

The prospect of domestic automobile lightweighting is broad, and the market size continues to increase. Benefiting from China's entering a product driven golden age, the penetration rate of new energy vehicles is expected to continue to increase, and the scale of China's automotive lightweight market is expected to reach 150 billion yuan by 2025.

Precision machining