What are the characteristics of materials and processes for gears in new energy vehicles?

Source: Zhejiang Jinchi Machinery Co.,Ltd.Release time: 2025-10-15

The material and process characteristics of new energy vehicle gears are mainly reflected in the following aspects:

Material characteristics:

High strength materials: Due to the high torque and high speed that new energy vehicle gears need to withstand, high-strength materials such as special alloy steel, powder metallurgy materials, aluminum alloys, etc. are usually used.

Lightweight materials: In order to improve the power performance and range of vehicles, gear materials need to be as lightweight as possible while maintaining sufficient strength and stiffness.

Wear resistant materials: Gears work at high speeds and high torques, requiring the use of wear-resistant materials to reduce wear and improve service life.

High temperature resistant materials: Electric vehicle motors and gearboxes may operate at high temperatures, so gear materials need to have good high temperature resistance performance.

Process characteristics:

Precision machining: New energy vehicle gears require high precision, so precision machining processes such as CNC turning, CNC milling, grinding, etc. are usually used.

Heat treatment: Gear materials usually require heat treatment, such as carburizing, nitriding, induction heating, etc., to improve their hardness and wear resistance.

Surface treatment: In order to further improve the wear resistance and corrosion resistance of gears, special surface treatments such as plating, spraying, anodizing, etc. may be required on the gear surface.

Quality control: The production of new energy vehicle gears requires strict quality control, including dimensional accuracy, surface quality, hardness, wear resistance, etc.

Testing and Inspection: After the completion of gear production, comprehensive testing and inspection are required, including dimensional testing, hardness testing, fatigue testing, noise testing, etc., to ensure that its performance meets the design requirements.

The material and process selection of new energy vehicle gears need to comprehensively consider factors such as working environment, performance requirements, and cost. With the continuous development of new energy vehicle technology, the materials and processes of gears are also constantly innovating to meet the increasingly high performance requirements of electric vehicles.