State two advantages and disadvantages of centrifugal casting. Write four applications.

State two advantages and disadvantages of centrifugal casting. Write four applications.
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1 Answer

Answer :

Centrifugal Casting:

Advantages:

1. Relatively very light impurities move inwards towards center. So they can be removed easily thus helping in producing sound castings. 2. Gates and risers are not needed. 3. This technique is best suited for the mass production of symmetrical objects and Castings yield is very high in some cases it is even equal to 100%. 4. Castings acquire high density, high mechanical strength and fine grained structure. 5. Inclusions and impurities are lighter. 6. These castings have a directional solidification starting from outside to inside.


Disadvantages: 

1. Skilled labors are to be employed for this process. 2. An inaccurate diameter of the inner surface of the casting. 3. Only some shapes can be generated by this casting process. 4. Not all alloys can be cast in this way. 5. Centrifugal castings require very high investments.


Applications: 

1. Bush bearings. 2. Clutch plates. 3. Paper making rollers. 4. Piston rings. 5. Cylinder liners. 6. Pipes of water gas sewage.

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