Lathes and Turning

LECTURE PRESENTATION

Reading Assignment

  • 22.1 Introduction to Turning and Boring Processes
  • 22.2 Fundamentals of Turning, Boring, and Facing Turning
  • 22.3 Lathe Terminology
  • 22.4 Cutting Tools for Lathes
  • 22.5 Workholding in Lathes
    Lathe Components

Recommended Reading

Outline

 Types of Lathes

Engine Lathe
Gap Bed Lathe
Turret Lathe
Vertical Lathe
Precision Tool Room Lathe
CNC Slant-Bed Lathe
CNC Sub-spindle Lathe
Swiss Turn Lathe

Turning and Related Operations

Straight Turning (right hand, left hand)
Turning between centers
Facing
Grooving (Necking) & Parting
Chamfering
Taper and Contour Turning
Forming
Boring
Drilling
Reaming
Threading
Tapping
Knurling

Basic Structure of a Lathe

Carriage Components

Compound Rest
Tool Post
Tool Holder
Cross Slide
Apron
Feed Lever
Half-Nut Lever

Headstock Components

Spindle
Speed Controls
Feed Controls

Bed Components

Bed Ways
Bed
Rack
Feedbar
Leadscrew
Tailstock
Live Center

Work Holding

Chuck (3 Jaw, 4 Jaw, 6 Jaw)
Faceplate
Between Centers
Collets

Tooling

Single Point Cutting Tools
Inserted Tooling
Cutting Speeds

Specifying a Machine

Horsepower
Swing – maximum diameter that can be rotated on the lathe
2x’s distance from spindle center line to ways
Beware of gap-bed lathes
Maximum distance between centers
Spindle Bore

 Additional Information

Lathe Components (Quiz Game)

Lathes and Turning (TC 9-524 US Army)

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