Workholding In The Lathe

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This book is part of the Workshop Practice Series, which aims to provide a practical and accessible guide to workshop enthusiasts of all skill levels. Whether you are a beginner or an experienced machinist, this book will help you understand the fundamentals of lathe workholding and improve your machining capabilities. A lathe is a versatile machine that has been used for centuries to produce precise cylindrical shapes in a variety of materials. Whether you are a professional machinist or a hobbyist, work holding is an essential aspect of lathe operation that can greatly affect the accuracy and quality of your work. Additionally, we will cover techniques for mounting and centering workpieces in these devices, as well as methods for ensuring concentricity and reducing runout. We will also examine special workholding considerations for different types of materials, such as aluminum, brass, and steel.

The Contents of Workholding In The Lathe

Chapter 1: Between Centres
- Principles and conditions for accuracy
- Types of centres
- Centring the work
- Driving non-circular workpieces
- Clamps and throwpieces
- Taper turning mandrels
Chapter 2: Faceplate Work
- Principles and clamping
- Dogs
- Adhesive fixing
- Vee-blocks
- Fixtures
- Centring methods
Lathework A Complete Training Course
Chapter 3: Chuckwork – General
- Chucking principles
- Distortion
- Number of jaws
- Chuck mounting
Chapter 4: The Universal or Independent Chuck
- Gripping forces
- Setting up
- Irregular shapes
- Overhang
- Unorthodox methods
- Compound chucking
Screwcutting in the Lathe Machine
Chapter 5: The Self-Centring Chuck
- History and types
- Strength of the scroll
- Accuracy
- ‘Griptru’
- Errors and wear
- Eccentric work
- 4- and 6-jaw types
Chapter 6: Unusual Chucks
- Bell and cup chucks
- Master-and-slave chuck
- Wood-block chucks
- The shellac chuck
Vertical Milling in the Home Workshop
Chapter 7: Collets
- Draw-in collets
- Dead-length types
- Double-taper and Schaublin collets
- Precautions
- Stepped collet chucks
- Auxiliary collets
- Arbors
- Adaptors
- Deadstops
- The Myford system
Chapter 8: Work Steadies
- Principles
- Chatter
- Overhang
- Setting the fixed steady
- Boring from the fixed steady
- Setting the travelling steady
- Using with over-length work
- The boring collar
Types of Micrometers and their uses
Lathe Alignment
- Principles
- Lathe bench or stand
- Jacking screws
- Setting up with spirit level
- The dial indicator method
- The turning test method
- Caliper method
- Making a test-bar
- Alignment of a worn lathe