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Drilling Is A: Cutting Drill Bit Cross-Section Cutting Tool Pressed Revolutions Per Minute Chips (Swarf) Rock

Drilling uses a rotating drill bit to cut a circular hole in solid materials by forcing the cutting edge against the workpiece and removing chips as the bit rotates at high speeds. For rock drilling, a drill bit is hammered into the hole with repeated impacts rather than circular cutting, and can be hammered from outside or inside the hole. Drilling is the first step in extracting oil and gas reserves by creating boreholes.

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Angelina Biswas
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19 views1 page

Drilling Is A: Cutting Drill Bit Cross-Section Cutting Tool Pressed Revolutions Per Minute Chips (Swarf) Rock

Drilling uses a rotating drill bit to cut a circular hole in solid materials by forcing the cutting edge against the workpiece and removing chips as the bit rotates at high speeds. For rock drilling, a drill bit is hammered into the hole with repeated impacts rather than circular cutting, and can be hammered from outside or inside the hole. Drilling is the first step in extracting oil and gas reserves by creating boreholes.

Uploaded by

Angelina Biswas
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Drilling is a cutting process that uses a drill bit to cut a hole of circular cross-section in solid

materials. The drill bit is usually a rotary cutting tool, often multi-point. The bit is pressed against the
work-piece and rotated at rates from hundreds to thousands of revolutions per minute. This forces
the cutting edge against the work-piece, cutting off chips (swarf) from the hole as it is drilled.

In rock drilling, the hole is usually not made through a circular cutting motion, though the bit is
usually rotated. Instead, the hole is usually made by hammering a drill bit into the hole with quickly
repeated short movements. The hammering action can be performed from outside the hole (top-
hammer drill) or within the hole (down-the-hole drill, DTH). Drills used for horizontal drilling are called
drifter drills.
It is important and first step in extraction of oil and gas reserves

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