Surface Grinding

Question 1

What is surface grinding?

Answer 1

A metal cutting process in which flat and extremely smooth surfaces are produced.

Question 2

Explain the process of surface grinding

Answer 2

The grinding wheel rotates and the workpiece, usually held in a magnetic chuck, is fed to and fro continuously.
At the end of each stroke, the table is moved across the wheel by a small amount.
The grinding wheel can be lowered to take a new cut.

Question 3

What is the main form of workholding in surface grinding? Explain how this is done

Answer 3

The magnetic chuck (the process uses high powered magnets to hold the workpiece in position)

Question 4

What is an advantage of a magnetic chuck?

Answer 4

No part of the device gets in the way of the process.

Question 5

Before using the magnetic chuck you must consider what? (3)

Answer 5

The work must be magnetic.
Work must be flat to be in contact with chuck.
Surface of work and chuck must be clean.

Question 6

Can a magnetic chuck be switched on and off?

Answer 6

Yes

Question 7

What is the method of switching off the magnetic chuck called?

Answer 7

flux diversion

Question 8

Explain the process of precision grinding

Answer 8

A metal cutting process in which flat and extremely smooth surfaces are produced.
The grinding wheel rotates and the workpiece, usually held in a magnetic chuck, is fed to and fro continuously.
At the end of each stroke, the table is moved across the wheel by a small amount.
The grinding wheel can be lowered to take a new cut.