With the gradual maturity of magnesium alloy application technology and the improvement of cost performance, the application of magnesium alloy in automobiles has increased, and the forming and processing methods have gradually become diversified.
Magnesium alloy has many advantages as a lightweight material for automobiles. Magnesium alloy has low density and high strength. Reduce component weight without reducing component strength. Magnesium alloy has good toughness, strong damping and attenuation ability, and good anti-vibration and noise reduction functions. It is widely used in housings or brackets of automobile parts. Used in the manufacture of bracket parts to improve the balance, safety and comfort of the car. Magnesium alloys have good heat dissipation properties and are often used in parts such as automobile lamp heat sinks and instrument panel frames that require high heat dissipation performance. Magnesium alloy has good die-casting performance and high cutting performance. It can produce parts with fine surfaces and clear edges and corners, with high production efficiency. The castings have stable dimensions, high precision and good surface finish. Magnesium alloys are abundant in resources and easy to recycle. Magnesium alloy die-casting parts can be directly recycled and reused after being discarded, which has good environmental protection.
The application of magnesium alloys in automobile parts is mainly divided into shells and brackets. The housing category mainly includes clutch housing, transmission housing, instrument panel, engine front cover, cylinder box, filter housing, etc. The magnesium frame category mainly includes steering brackets, steering wheels, headlight brackets, brakes, and clutch pedal brackets. Frames, brake brackets, seat frames, mirror brackets and wheel hubs, etc. Magnesium alloy has a good substitution effect on steel and aluminum alloy. Magnesium alloys can realize material replacement in body, powertrain, chassis, interior and other components. The weight reduction ratio of automobile parts replaced by magnesium alloys can reach 25% to 75%.
The replacement of aluminum alloys and steel parts by magnesium alloys in the field of automotive parts is still in a gradual development stage. The application scale of magnesium alloy will be gradually released, and the application penetration rate in the automotive field will continue to increase. The industrial application database of magnesium alloy materials still needs to be further improved to promote the application of magnesium alloys in automobile lightweighting.