PM Molding (Powder Metallurgy Molding), also known as powder metallurgy molding, the powder metallurgy products produced through this process have many advantages, mainly including the following points:
1. ** High Precision ** : The powder metallurgy forming process can achieve high dimensional accuracy and surface finish. The product can approach the final shape and size, reducing subsequent processing procedures, improving production efficiency, and lowering costs. For instance, some precision components in automotive engines, such as valve seat rings and fuel injectors, can be directly produced into highly accurate products through powder metallurgy forming processes without the need for complex mechanical processing.
2. ** High material utilization rate ** : During the powder metallurgy forming process, there is less material loss. Compared with traditional cutting processing methods, it does not require a large amount of cutting material to obtain the desired shape and size, and the material utilization rate can usually reach over 90%, greatly saving raw material costs.
3. ** Capable of manufacturing complex-shaped parts ** : This process can produce parts with complex shapes that are difficult to obtain through other processing methods. For example, parts with complex internal structures and irregular cross-sections, etc. Just like the small heat sinks in some electronic products, through powder metallurgy forming, structures with complex heat dissipation fins can be directly manufactured to meet the heat dissipation requirements of the products while ensuring the overall performance of the components.
4. ** Excellent mechanical properties ** : The density of powder metallurgy products can be adjusted through process control to achieve different mechanical properties and meet the requirements of various engineering applications. After proper sintering and subsequent processing, powder metallurgy parts can possess high strength, hardness, wear resistance and corrosion resistance, etc. For instance, gears manufactured by powder metallurgy can meet the working requirements of automotive transmission systems in terms of strength and wear resistance.
5. ** Capable of preparing composite materials ** : Powders of different components can be mixed together for molding and sintering to produce composite materials with special properties. For instance, by mixing metal powder with ceramic powder, parts that combine the properties of both metals and ceramics can be produced, such as composite material parts with high hardness, high-temperature resistance and good electrical conductivity, which are used in aerospace, electronics and other fields.
6. ** Suitable for large-scale production ** : The powder metallurgy forming process is easy to achieve automation and large-scale production, with high production efficiency, and can meet the demands of large-scale production. In industries such as automobiles and home appliances, a large number of powder metallurgy parts are widely used. Through large-scale production, the unit production cost has been reduced and the market competitiveness of the products has been enhanced.
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