On the process of powder metallurgy forming technology

A lot of metal can be formed by powder metallurgy, so each aspect of the product is still a good performance, in the molding process, will involve a lot of relevant parameters, which and powder metallurgy forming effect are has a lot to do with. To this end, a small series to study the whole process of powder metallurgy.

Metal powder metallurgy molding is mainly used to complete the welding, the process of the electrode, the role of the pressure, the set of these parameters and the size of the workpiece, the specifications and the effect to achieve. In order to ensure the forming structure meet the requirements, welding process is also very important, with the use of numerical control technology, welding in the process of horizontal movement speed of electrode, electrode feeding time and initial PU powder thickness can get precise control.

In general, the powder metallurgy technology can effectively overcome the workpiece produced in the process of some adverse effects, and the work efficiency have significantly improved, even forming quality and accuracy have improved a lot.

What are the advantages of powder metallurgy products?

In recent years, the powder metallurgy industry in the market to fight the fiery, but the metal powder metallurgy which has the advantages of it? Want to know with the Shenzhen MIM manufacturers ZCMIM together to see it!

1. The yield is high, for example to make a gear, the general gear shaper, gear hobbing and other machine to cut off a lot of material, powder metallurgy is not.

2 high melting point materials can be processed, tungsten and molybdenum are almost all produced by the powder metallurgy method, because the melting point is too high and it is difficult to be melted.

3 can be made of porous materials, such as oil bearing, can be stored oil.

4 high production efficiency, because you do not need to machine processing can produce complex shape. Used for small size parts.

5 suitable for making metal matrix composites, such as tungsten / copper composites.

In recent years, the average annual growth rate of powder metallurgy products in China is over 15%

A lot of metal forming processes are closely related to the development of materials and powder metallurgy. Powder metallurgy is the process of metal powder as raw material, through the forming and consolidation, the manufacture of metal materials, composite materials and products. The development and production of high performance metal powder plays an important role in improving the properties of powder metallurgy materials and products and promoting the progress of powder metallurgy technology.

In all kinds of metal powder, high purity iron powder is powder injection molding is an important one of the raw materials, consumption accounts for about the powder metallurgy industry with 70% of the amount of powder, which reduced iron powder due to having a porous, with irregular morphology, forming and good green strength is high pressure, in divided into auto parts, compressor parts, sintered bearing, electric tool parts and electronic components production become irreplaceable raw materials.

Statistics show that in the last 5 years, the average annual growth rate of China's powder metallurgy products is 15.4%, the average annual growth rate of sales revenue is 16.2%. In 2013, the total sales volume of powder metallurgical machinery parts in China has reached more than.

What are the advantages of powder metallurgy and casting and machining?

Powder metallurgy is the preparation of metal or with a mixture of metal powder or metal powder injection and non metal powder) as raw material, through forming and sintering, manufacturing metal materials, composite and products of various types of technology. What are the advantages of powder metallurgy and casting process? Shenzhen MIM manufacturers to give you talk about.

1, to casting

Advantages are high efficiency, low energy consumption and high precision. Can do a very small volume of things. Low cost.

2, on the machine plus

Advantages in large quantities, low cost of manufacturing complex parts, good consistency, high efficiency

Define for MIM

MIM is a high-tech technology (metal injection molding) which is a traditional powder metallurgy and plastic injection molding process combined with the. Metal powder injection molding technology is a product of plastic molding technology, polymer chemistry, powder metallurgy technology and metal materials science and other disciplines of infiltration and cross. 

MIM technology overcomes the traditional powder metallurgy products’ weak point,like low density, inhomogeneous materials, mechanical performance is not high, not easy to complex pieces of thin-wall molding shortcomings .Metal injection moulding technology suitable for mass production of complex products, high precision and high performance requirements of small metal parts.

History of MIM

Kun Hsiung Huang is a professor of Taiwan University which started into the circle of Chinese technology from the German professor at Rensselaer Polytechnic Institute (RPI) of powder metallurgy laboratory in 1985 . 

In 2008, apple began attention to MIM technology and 2011 began using metal injection molding parts replaced traditional die-casting parts as the internal and external parts for apple mobile phone and notebook computers. The MIM industry showed explosive growth in the past five years (2011-2015)

Advantages of powder metallurgy technology

1, the vast majority of refractory metals and compounds, pseudo alloys, porous materials can only be manufactured by powder metallurgy method.

2, due to the powder metallurgical method can be pressed into the final size of the compact, and do not need or need little subsequent mechanical processing, it can greatly save metal, reduce the cost of products. Products manufactured by powder metallurgy, metal loss only 1-5%, and general casting method used in the production, the loss of metal may will reach 80%.

3, due to the technology of powder metallurgy in the production process of the material does not melt materials, not mixed with impurities caused by crucible and deoxidizing agent and sintering general in vacuum and in a reducing atmosphere, not afraid of oxidation nor to any material pollution, so it is possible for preparation of high purity materials.

4, powder metallurgy method can guarantee the accuracy and uniformity of the composition ratio of the material.

5, powder metallurgy is suitable for the production of the same shape and the number of products, especially gear and other high processing costs of products, powder metallurgy process can greatly reduce production costs.