In the process of transforming the automobile industry to lightweight, energy-saving and intelligent, powder metallurgy technology has become a key support for the manufacture of core parts of automobiles with its advantages of precision molding and efficient use of materials. From the engine system of traditional fuel vehicles to the motors and battery components of new energy vehicles, powder metallurgy products have penetrated into almost every core link of automobile manufacturing, providing an important guarantee for cost reduction, efficiency and performance upgrading of the automobile industry.

In the field of traditional fuel vehicles, powder metallurgy is the "first choice process" for key engine components. The valve seat ring and valve duct in the engine are the core parts that can withstand high temperature, high pressure and friction. The parts manufactured by traditional casting process are prone to fast wear and short life, and the powder smeltingThrough the formula design of "iron-based powder + copper and carbon element doping", combined with the high-temperature sintering process, the hardness of the parts can be increased to HRC50-55, and the wear resistance is more than 3 times higher than that of traditional castings. At the same time, it can withstand high temperatures above 800℃ to meet the long-term high-speed operation needs of the engine. Seek. According to the data of an automobile engine manufacturer, after the adoption of powder metallurgy gate seat ring, the engine overhaul cycle has been extended from 100,000 kilometers to 150,000 kilometers, and the manufacturing cost of a single part has been reduced by 20%. In addition, complex structural parts such as synchronizer teeth hubs and differential planetary gears in the automobile transmission system are also mass-produced through the near-net forming process of powder metallurgy. The dimensional accuracy is controlled at ±0.05mm, and there is no need for a large number of subsequent machining, and the production efficiency is improved by 40%.

With the rapid development of new energy vehicles, the application of powder metallurgy in this field has ushered in a new outbreak. The core component of the new energy vehicle motor - the iron core. The traditional stamping process requires the silicon steel sheet to be stamped one by one and then stacked and assembled. The process is cumbersome and the material waste rate reaches 15%, while powder metallurgy adopts the "soft magnetic powder + pressing and molding + low-temperature sintering" process, which can directly manufacture integrated motors. The material utilization rate of the iron core has been increased to more than 98%, and the magnetic conductivity of the iron core has been increased by 5%, reducing the energy consumption of the motor. In the battery system, the battery poles made by powder metallurgy are formed by copper-aluminum composite powder, which not only has the high conductivity of copper, but also has the lightweight advantages of aluminum. Compared with traditional welding poles, the resistance is reduced by 30% and the charging efficiency is improved by 15%.According to statistics, the global powder metallurgy market in the field of new energy vehicles has exceeded 18 billion yuan in 2025, and is expected to reach 45 billion yuan in 2030, with a compound annual growth rate of more than 20%.

From fuel vehicles to new energy vehicles, powder metallurgy has always kept pace with the development of the automobile industry, constantly optimizing technology and product performance, and has become an indispensable core technology in automobile manufacturing. In the future, with the improvement of the demand for precision parts in automobile intelligence, powder metallurgy will also expand its application in the fields of autonomous driving sensor brackets, on-board chip heat dissipation components, etc., and continue to empower the upgrading of the automobile industry.