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Iinterchangeability

   Posted On :  23.09.2016 12:15 pm

It is the principle employed to mating parts or components. The parts are picked at random, complying with the stipulated specifications and functional requirements of the assembly.

INTERCHANGEABILITY

 

 

It is the principle employed to mating parts or components. The parts are picked at random, complying with the stipulated specifications and functional requirements of the assembly. When only a few assemblies are to be made, the correct fits between parts arc made by controlling the sizes while machining the parts, by matching them with their mating parts. The actual sizes of the parts may vary from assembly to assembly to such an extent that a given part can fit only in its own assembly. Such a method of manufacture takes more time and will therefore increase the cost. There will also be problems when parts arc needed to be replaced. Modern production is based on the concept of interchangeability. When one component assembles properly with any mating component, both being chosen at random, then this is interchangeable manufacture. It is the uniformity of size of the components produced which ensures interchangeability.

 

The advantages of interchangeability are as follows:

 

 

 

1.    The assembly of mating parts is easier. Since any component picked up from its lot will assemble with any other mating part from another lot without additional fitting and machining.

 

2.    It enhances the production rate.

 

3.    The standardization of machine parts and manufacturing methods is decided.

 

4.    It brings down the assembling cost drastically.

 

5.    Repairing of existing machines or products is simplified because component parts can be easily replaced.

6.    Replacement of worn out parts is easy

 

Tags : Mechanical - Metrology and Measurements - Concepts of Measurement
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