Differentiate between lapping and honing process.
S. N.
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Lapping
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Honing
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1 |
Lapping is a finishing process in which tool used is called lap.
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Honing is a finishing process in which tool used is called hone.
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2 |
The lapping process involves passing a part between one or two large flat-lap plates or wheels.
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Tool has combined reciprocating and rotary motion of tool.
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3 |
Cutting action takes place by fluid that contains an abrasive.
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Cutting action takes place by abrasive sticks.
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4 |
The Process is used to corrects minor imperfections of shape, refines surface finish (mirrors finishes are common)
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The process is used to remove tool marks of previous operations.
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5 |
Used for flat and slightly spherical
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Used for round holes
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6 |
Applications: Precision Plug Gauges, Metallic Bearing Surfaces, Optical Lenses, etc.
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Applications: Cylinders of an IC engine, air bearing spindles, gears etc.
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7 |
Used to achieve super-flat surfaces and incredibly tight tolerances on parts that require accuracy at the microscopic level.
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Used to improve certain form characteristics such as cylindricity, surface finish, or sphericity.
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