Machining (workpieces)

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ÇANKAYA UNIVERSITY FOREIGN LANGUAGES UNIT ACS 206
ME UNIT 23 WEEK 11 MACHINING I
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VOCABULARY ITEMS
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Machining (cutting workpieces)

• Definition cutting pieces of materials
  (especially metals) with machines.
• E.g. Metal materials are shaped by machining.

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To machine (to cut workpieces)

• Definition to cut pieces of materials
  (especially metals) with machines.
• E.g. Metal materials are machined to give them
  particular shapes.

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Machine tools

• Definition the tools used in machining
• E.g. Machining tools need to be maintained
  periodically for quality work.

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Swarf (chips) (n.)

• Definition/synonym waste material

swarf
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Swarf (chips) (n.)

• Definition/synonym waste material

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cutting fluid

• Definition a liquid used to cool the workpiece
  while machining

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Coolant (n.)

• Definition a specially prepared liquid which is
  used to stop a machine from getting too hot while
  it is operating

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CNC (computer numerical control)

• Definition a system on computers for controlling
  and guiding the machining process

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CAD (computer aided design)

• Definition Another system to control machining

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CAM (computer aided manufacturing)

• Definiton Computer-aided manufacturing (CAM) is
  the use of computer software to control machine
  tools and related machinery in the manufacturing
  of workpieces.

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milling machine

• Milling is the most common form of machining, a
  material removal process, which can create a
  variety of features on a part by cutting away the
  unwanted material. The milling process requires a
  milling machine, workpiece, fixture, and cutter.

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toothed cutting discs
The teeth
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to mill (v.)

• Definition (specialized meaning) to shape metal
  by removing parts from it using a special machine

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to rotate (v.)

• Definition I or T to (cause to) turn in a
  circle, especially around a fixed pointRotate the
  handle by 180 to open the door.
• E.g.
• The wheel rotates around an axle.
• The satellite slowly rotates as it circles
• the Earth.

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lathe (n.)

• Definition a machine for changing the shape of a
  piece of wood, metal, etc. which works by turning
  the material while a sharp tool is pressed
  against it

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Sawing (n.)

• Definition Cutting materials using a saw
• E.g. Carbon steel blades are usually the best
  choice for sawing wood, plastic, aluminum, and
  similar easy-to-cut materials

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circular saw

• Definition The circular saw is a machine using a
  toothed metal cutting disc or blade.

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Blade (n.)

• Definition the flat part on a knife or similar
  tool or weapon, with a very thin edge used for
  cuttinga sword with a steel blade
• E.g. a packet of razor blades

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Kerf (n.)

• Definition A slit made by cutting, esp. with a
  saw

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band saw

• Definition A bandsaw is a power tool which uses
  a blade consisting of a continuous band of metal
  with teeth along one edge to cut various
  workpieces. The band usually rides on two wheels
  rotating in the same plane, although some
  bandsaws may have three or four wheels

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hacksaw

• used for hand sawing

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hole saw
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abrasive wheel

• Definition Blade in the shape of wheel that is
  rough and very sharp

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Drill (n.)

• Definition a tool or machine which makes holes
• E.g. an electric/pneumatic drill
• a dentist's drill

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Drilling (n.)

• Definition cutting circular holes on a surface
• e.g. Its better to make holes on a wall by
  drilling since it is less damaging to the wall.

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to drill into (v.)
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drill bit (bit)

• Definition the sharp part of the drill which
  cuts the hole

Drill bit
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diamond drilling

• Exploration diamond drilling is used in the
  mining industry to probe the contents of known
  ore deposits and potential sites. By withdrawing
  a small diameter core of rock from the orebody,
  geologists can analyze the core by chemical assay
  and conduct petrologic, structural and
  mineralogic studies of the rock.

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to enlarge (v.)

• Definition to make/become larger to make/become
  bigger
• E.g. The Eiffel Tower is 15 cm longer in summer
  months because the heat enlarges its metal.

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Boring (n.)

• Definition making a hole larger (in diamond
  drilling, or core drilling)

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Grinding (n.)

• Definition Removing material across a surface
  area, using abrasive wheels

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Grinder (n.)

• Definition a grinding machine

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23.1 (p. 53)

• Match the two parts to make correct sentences.
• 1-c
• 2-d
• 3-5
• 4-f
• 5-b
• 6-a

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23.2 (p. 53)

• Complete the descriptions below the photos using
  the words in the box
• 1- drill bit for metal
• 2- a holesaw
• 3- a blade for a hacksaw
• 4- a toothed blade for a circular saw
• 5- a thick abrasive wheel for a grinder
• 6- cores of concrete being removed by diamond
  drilling

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23.3 (p. 53)

• Complete the sentences with the words in the box.
  Look at B (p. 52) to help you.
• 1. turn
• 2. drill
• 3. saw
• 4. grind
• 5. mill