Question
Download Solution PDFThe operation of smoothing and squaring the surface around a hole is known as:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
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Counter - boring is an operation of enlarging a hole to a given depth, to house heads of socket heads or cap screws with the help of a counterbore tool. |
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Countersinking is an operation of beveling the end of the drilled hole. |
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Spot facing is a machining operation for producing a flat seat for bolt head, washer or nut at the opening of drilled hole. Spot facing removes sufficient metal from the surface around a drilled hole to form a true seat for a bolt head or nut. |
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Boring is an internal operation carried out on already drilled holes. |
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Important Points
Trepanning
Trepanning is the operation of producing a hole by removing metal along the circumference of a hollow cutting tool. Trepanning is performed for producing large holes which cannot be produced by any drilling operation. Trepanning for making large through holes and or getting cylindrical solid core.
Last updated on May 30, 2025
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