Describe the operations performed by a drilling machine.

Describe the operations performed by a drilling machine.

Answers

Drilling: It is the process of making cylindrical hole by rotation of cutting tool.

Reaming: It is the process of making a hole smoothly and accurately by the tool called reamer.

Boring: It is the operation of enlarging a drilled hole to bring it to required size by using single
point cutting tool.

Counter boring: This operation is used for enlarging only to a certain depth of already drilled
hole in order to maintain alignment and true concentricity of the counter bored hole with the
previously drilled hole and the tool is provided with a pilot at its bottom.

Counter Sinking: It is the operation of enlarging the end of a drilled hole to give a conical shape
for a short distance. This is done for providing a seat to the counter sunk heads of screws.

Tapping: It is the operation of cutting internal threads by using a cutting tool called tap. In order
to tap the hole, a special tapping chuck must be used.

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Kavungya answered the question on March 6, 2019 at 12:58

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