How to select powder metallurgy gear materials?

How to select powder metallurgy gear materials?

With the development of industrial technology, P/M gears are more and more widely used in automobiles and motorcycles. For P/M gears with complex structures, different gear materials can usually be selected according to different performance requirements. How to select the powder metallurgy gear materials? Next, we will talk about it.

Powder metallurgy gear

1. When the gear teeth are easy to break under impact load, materials with good toughness shall be selected, and low-carbon steel can be used for carburizing and quenching.

2. For high-speed closed transmission, the tooth surface is prone to pitting corrosion, so the material with good tooth surface hardness can be selected, and the medium carbon steel surface quenching can be selected.

3. When low speed and medium load, gear tooth fracture, pitting and wear can occur, materials with good comprehensive mechanical properties such as mechanical strength and tooth surface hardness shall be selected, and carbon steel can be selected for quenching, tempering and fine cutting.

4. When the structure size is required to be compact and the wear resistance is high, alloy steel shall be used.

When we choose powder metallurgy materials, we can first consider the factors when selecting gear materials according to the requirements of working conditions. This can effectively improve the stability of product quality. For example, gears used in aircraft should meet the requirements of low mass, high transmission power and high reliability, so alloy steel with high mechanical properties can be selected.

The above is the introduction of common materials for powder metallurgy gears, and I hope it can be helpful to you.