Titanium metal powder injection molding automotive rocker arm MIM parts

Titanium metal powder injection molding automotive rocker arm MIM parts

The automotive industry is the largest user of MIM injection molded parts, accounting for approximately 60% of the MIM industry. Such as making complex-shaped parts used in engines, gearboxes, turbochargers, synchronizer rings, locking mechanisms, shock absorbers, steering systems and automotive electronic systems.

Examples of the application of MIM technology in automobiles

1. Engine rocker arm

This is a rocker arm made of low-alloy steel that controls the engine's variable valve timing stroke. It is characterized by its light weight and central control structure, which is difficult to produce by other methods.

2. Turbocharger blades

The turbocharger is mainly composed of a turbine, a pump wheel, a rotor, an impeller, etc. It uses the inertia force generated by the high-pressure exhaust gas discharged from the engine to drive the pump wheel to rotate. The rotor drives the turbine to rotate, increasing the engine intake pressure. Among them, the output of this MIM variable cross-section nozzle blade is very large, and it is produced using molds. MIM injection molding material uses Kovar alloy, which works under high temperature conditions and has fine powder dispersion. The blade density is very uniform and the strength is very high.

3.Shift lever

This is a very large MIM part, an automobile manual transmission. The production process of this part is: injection molding, sintering, hardening and assembly of the shaft. After sintering, it needs to be carburized and quenched.

4.Car connecting rod

Important parts of the engine must be fatigued for more than 5 million times under a certain load. Most of the original automobile engine connecting rods are of two types: forged steel connecting rods and cast connecting rods. It is very difficult for cast connecting rods to have a circumference of more than 5 million, so most of them are precision forged. At present, automobile connecting rods are completed by MIM injection molding, which reduces processes, reduces costs, greatly improves production efficiency, and can meet the performance of the product.

5. Shock absorber parts

Shock absorber parts include pistons, compression valve seats, connecting rod guide seats and other parts. The shapes are relatively complex, there are many small holes processed, and the dimensional accuracy is also high. MIM injection molding can be used to form the entire body at one time, reducing production costs and improving production. efficiency.

6. Synchronizer ring

An important component in the gearbox. If the synchronizer fails, the car will not be able to shift gears. Most traditional production uses precision forging of brass, which requires heating, billet making, pre-forming, final forging, trimming, finishing and other processes. Due to the very high raw material prices and process costs, many manufacturers currently use powder injection molding.

Qinhuangdao Zhongwei Precision Mechanical Parts Co., Ltd. mainly uses metal (or non-metal) powder near net forming and injection molding processes to engage in the research and development, production, sales and value-added services of new materials and their products. Through the continuous improvement of new material technology and processing technology Innovation, development and reserve to lead the upgrading of traditional industries, import substitution and the development of emerging fields. The company's main business application fields are divided into powder metallurgy press forming process application fields, powder injection molding and liquid metal process application fields and soft magnetic composite material application fields. Among them, the powder metallurgy press forming process application fields are: fuel vehicles, new energy vehicles, high-efficiency vehicles Energy-saving home appliances, power tools, etc.; powder injection molding and liquid metal process application fields are: automobiles, consumer electronics, communications, bathroom, etc.; soft magnetic composite material application fields are: new energy vehicles, photovoltaics, power supplies, filters, communications, motors wait.