Skip to main content

ADVANTAGES OF POWDER METALLURGY PROCESS

 The following are the advantages of powder metallurgy ,

1. Although the first cost of metal powder is high , there is no loss of material. The components can be produced clean and bright, ready for use.

2. Perhaps the greatest advantage possessed by the process is the case in which the composition of the  product can be controlled. Besides, the material does not run the risk of contamination with any  unwanted substance.

3. Close dimensional tolerances can be maintained especially if a sizing operation is used.

4. Non metallic substances can be introduced as required and in any proportion to get the  desired  properties.

5. A wide range of properties such as density, porosity and particles size can be obtained for particular  applications.

6. It is possible to unite materials that cannot be alloyed in the usual sense or would not  yield the  desired characteristics if they were joined mechanically.

7. The process is also the advantage in the production of magnetic cores having special desirable  properties.

8. A considerable decrease in production time and consequently high production rate may be achieved  by adaptation of the process, since this is automated. 

9. Highly skilled labor is not required.

10. The process facilitates saving in material as there is no waste during fabrication.

11. Composition , structure and properties can be controlled more easily and closely than any other fabricating processes. The components can be produced clean and bright, ready for use. 


Metallurgy Process


 

Labels:

Comments

Post a Comment

Popular posts from this blog

Advantages And Disadvantages Of Air Refrigeration System :

 Advantages Of  Air Refrigeration : 1. The refrigerant used namely air is cheap and easily available. 2. There is no danger of fire or toxic effects due to leakages. 3. The weight to ton of refrigeration ratio is less as compared to other systems. Disadvantages Of Air Refrigeration : 1. The quantity of  Refrigerant used per ton of refrigeration is high as compared to other systems. 2. The COP of the system is very low. Therefore running cost is high. 3. The danger of frosting at the expander valves is more as the air contains moisture content. 
Post a Comment
Read more

MELTING FURNACES FOR FERROUS METALS : CUPOLA AND ITS WORKING

Various types of melting furnaces are used in different foundry shops, depending upon the quantity of metal to be melted at a time, and the nature of work that is carried out in the shop.  The primary objective in cupola is to produce iron of desired composition, temperature and properties at the required rate in the most economical manner. Besides, this furnace has many distinct advantages over the other types, e.g., simplicity of operation, continuity of production, and increased output coupled with a high degree of efficiency.  Description Of a Cupola : The Cupola Furnace consists of a vertical, cylindrical steel sheet, 6 to 12 mm thick, and lined inside with acid refractory bricks or acid tamping clay. The refractory bricks or the tamping clay used consist of  silicon oxide acid (SiO2) and alumina (Al2O3). The lining is generally thicker in the lower where the temperatures encountered are higher than in the upper region. The shell is mounted either on a brick work fo...
Post a Comment
Read more

SIMPLE CARBURETOR - CONSTRUCTION AND WORKING

CONSTRUCTION OF SIMPLE CARBURETOR :  The main Components of Simple Carburetor are : Float Chamber, float, nozzle, venturi, throttle valve, inlet valve, and metering jet . In the float chamber, a constant level of petrol is maintained by the float and a needle valve.  The float chamber is ventilated to atmosphere.  This is used to maintain atmospheric pressure inside the chamber. The float which is normally a metallic hollow cylinder rises and closes the inlet valve as the fuel level in the float chamber increases to certain level. The mixing chamber contains venturi, nozzle and throttle valve. The venturi tube is fitted with the inlet  manifold. This tube has a narrow opening called venturi. A nozzle is provided just below the centre of this venturi. The nozzle keeps the same level of petrol as that of the level in the float chamber. The mixing chamber has two butterfly valves.  One is to allow air into the mixing chamber known as choke valve. The other is to al...
Post a Comment
Read more