Surface Treatment Process of Powder Metallurgy Parts

Surface Treatment Process of Powder Metallurgy Parts

Now many parts used in the automobile industry are generally made by powder metallurgy. In order to effectively improve the wear resistance, corrosion resistance and fatigue strength of powder metallurgy parts, surface treatment of powder metallurgy parts is an indispensable process. Because of this, the surface of powder metallurgy parts can be more functional and densified at the same time. What is the surface treatment process of powder metallurgy parts? Here is a brief introduction of the Zhongwei Precision Editor:

Powder metallurgy parts

Surface treatment process of powder metallurgy parts:

1. Coating:

Cover the surface of the part to be treated with a layer of other materials without any chemical reaction.

2. Surface chemical treatment:

The chemical reaction between the surface of the part to be treated and the external reactants.

3. Chemical heat treatment:

Other elements such as C and N diffuse to the surface of the processed part.

4. Surface heat treatment:

Phase transformation occurs through the cyclic change of temperature, which changes the microstructure of the surface of the workpiece to be treated.

5. Mechanical deformation method:

The mechanism deformation of the surface of the treated part is mainly to generate compressive residual stress and improve the surface density.

The content introduced above is the surface treatment process of powder metallurgy parts. Only by further improving the hardness, corrosion resistance and tribological characteristics of the powder metallurgy surface, can we further expand the application field of powder metallurgy parts, so as to achieve near net formation and automatic batch production and effectively reduce the consumption of resources and energy for production.