Lathework St Oliver’s Community College · Drilling on the lathe When drilling on the lathe, the...
Transcript of Lathework St Oliver’s Community College · Drilling on the lathe When drilling on the lathe, the...
Lathework St Oliver’s Community
College
The Centre
Lathe
In lathework, the
workpiece is rotated
against a cutting tool.
The cutting tool is
moved along a certain
path to produce the
required shape.
Lathework is normally
referred to as turning.
Headstock
This houses the lathe spindle and also contains
gears to provide a range of specific speeds.
Tailstock
The tailstock can be moved along the bed
slideways and may be clamped in any desired
position. The tailstock is used for drilling
operations on the lathe
Three-Jaw Self-Centring chuck
This is used for holding round or hexagonal work
Four-Jaw Independent Chuck
The four-jaw
independent chuck is
used for gripping
square, round,
rectangular and
irregular shapes
Toolposts
The toolpost is mounted on the top slide and
carries the tool or a tool holder.
Tungsten Carbide cutting tool
Facing
In facing, the tool is moved at right angles to the axis of
rotation of the work by means of the cross slide. Flat
surfaces are produced and this is the process used to face
work and finish shoulders.
https://www.youtube.com/watch?v=zAKbYXuaAi8
Parallel
Turning
In parallel turning, the tool
moves parallel to the axis of
rotation of the work and
cylindrical forms are produced
https://www.youtube.com/watch?v=83dUQ896Q2w
Centre Drill
The centre drill is used for drilling countersunk holes to
accommodate lathe centres and also for starting holes
when drilling on the lathe.
Centre
drilled work
https://www.youtube.com/watch?v=O9uNy76nH8M
Drilling on
the lathe
When drilling on the lathe, the work revolves and the drill is fed into it by turning the tailstock handwheel.
During the drilling the drill must be withdrawn from time to time to remove swarf from its flutes and to apply cutting fluid.
https://www.youtube.com/watch?v=tb65daDg5Os
Knurling
Knurling is the operation of
impressing serrations on
articles to enable them to be
gripped securely by hand.
https://www.youtube.com/watch?v=Dt0u0yuiW34
Parting off
This involves cutting off parts
from the bars from which they
were turned.
https://www.youtube.com/watch?v=cLzVQRXysbY