Internal & external grinding - Manufacturing Processes - 2

Q.  Which of the following statements are true for centreless grinding?

1. Less metal needs to be removed in centreless grinding operation
2. The setup time for centreless grinding operation is small
3. The requirement of wheel adjustment in centreless grinding operation is minimum
4. The centreless grinding operation can be applied equally to both internal and external grinding

- Published on 04 Aug 15

a. (1), (2) and (3)
b. (2), (3) and (4)
c. (1), (3) and (4)
d. (1), (2) and (4)

ANSWER: (1), (3) and (4)
 

    Discussion

  • Pankaj   -Posted on 06 Nov 15
    - The centreless grinding is a process of grinding metallic parts in which the piece to be ground is supported on a work-rest, and passed between a grinding wheel running at a high speed and control wheel running at a slow speed.

    - The advantages of centreless grinding process are as follows:

    1. Less metal needs to be removed during centreless grinding process due to the existence of a true floating condition.

    2. The requirement of wheel adjustment is minimum in centreless grinding process.

    3. The centreless grinding operation can be applied equally to both internal and external grinding.

    - Besides these advantages, the one of the disadvantages of centreless grinding process is that its set up time is usually large.

    - Therefore, the sentences (1), (3) and (4) are true for centreless grinding operation.

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