List various surface finishing processes. Explain lapping.

List various surface finishing processes. Explain lapping.
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1 Answer

Answer :

List of Surface Finishing Processes:

[1] Grinding

[2] Honing

[3] Lapping

[4] Burnishing

[5] Buffing

[6] Polishing

Lapping

Lapping is basically an abrasive process in which loose abrasives function as cutting points finding momentary support of the lap.

The process has the following features.

(a) Use of loose abrasives between the lap and the work

(b) The lap and workpiece are not positively driven, but are guided in contact with each other

(c) Relative motion between the lap and work surface should be constantly changing. The effective path is of cycloid in nature.

Figure shows the lapping process.

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