Which process is better for machining gear or powder metallurgy gear?

Which process is better for machining gear or powder metallurgy gear?

Which process is better for machining gear and powder metallurgy gear is the content to be shared today. Do you know which process is better? Let's take a look at zhongwei's precision knitting.

1. Powder metallurgy bearing

Because powder metallurgy is a recrystallization process that allows metal powder to form under high temperature, without rolling process and forming metal fiber flow, it is a non-oriented mechanical property. Therefore, the bending and shear strength of gear teeth are not as good as those of traditional machined gears. Due to the processing characteristics of powder metallurgy, it can be made into oil-containing parts and non-lubricated parts, but the effect is still worse than that of oil bath lubrication, belonging to the boundary lubrication state. There is no waste in the gear forming process, which is the best use of steel resources.

2. Machined gear

Machined gear is a technological process that uses mechanical methods to obtain specific structure and precision of gear. Gear is the core transmission component in automobile movement, and its processing quality will have a direct impact on the vibration, noise and reliability of automobile assembly and even the whole vehicle, and sometimes become the key factor restricting the improvement of product level. Automotive gears generally belong to large-scale professional production. Cylindrical gears and bevel gears are widely representative. Different process combinations are adopted according to different structures and accuracy requirements. Due to the large equipment investment, the existing resources are usually fully considered in the selection of process mode.

3. Which process is better for machining gear or powder metallurgy gear

The main advantage of powder metallurgy is that it is sintered from powder materials, so it has good self-lubrication after oil bath. The tooth shape and all dimensions can be formed, and generally no additional processing is allowed; The disadvantage is that compared with the traditional machining gear, the strength is insufficient, and it can not transmit large torque. The tooth shape accuracy is generally 6~9, and the dimension accuracy is generally up to IT7~6. I wonder whether it can meet your use requirements.

The above is the introduction of which process is better for machining gears and powder metallurgy gears shared by Zhongwei Precision Editor. I hope this article will help you. If you need more information about powder metallurgy, please pay attention to the official website of zhongwei Precision.