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Advantages and Shortcomings of powder metallurgy process

2017-03-27


 Advantages of powder metallurgy process:
1, the vast majority of refractory metals and their compounds, pseudo-alloy, porous materials can only be used to manufacture powder metallurgy method.
2, because the powder metallurgy method can be pressed into the final size of the compact, without the need or little need for subsequent mechanical processing, it can greatly save the metal, reduce product costs. When the product is manufactured by powder metallurgy, the loss of metal is only 1-5%, and the loss of metal may be 80% when produced by the general casting method.
3, because the powder metallurgy process in the material production process does not melt the material, it is not afraid of mixed with crucible and deoxidizer and other impurities, and sintering generally in the vacuum and reducing atmosphere, not afraid of oxidation, nor to the material Any pollution, it is possible to produce high-purity materials.
4, powder metallurgy method to ensure that the material composition ratio of the correctness and uniformity.
5, powder metallurgy suitable for the production of the same shape and the number of products, especially gears and other high cost of processing products, powder metallurgy manufacturing can greatly reduce production costs.

The shortcomings of the powder(carbide powder) metallurgy process:
1) There is always porosity inside the product;
2) the strength of ordinary powder metallurgy products than the corresponding forging or casting to low (about 20% to 30%);
3) due to the process of forming the powder flow is far less than liquid metal, so the shape of the product structure has some restrictions;
4) the pressure required for press forming is high, so that the product is limited by the capacity of the pressing equipment;
5) High cost of molding, generally only for batch or mass production.

For more information please link our company official website:http://www.langfengmetallic.com/, please contact: postmaster@langfengmetallic.com

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