Workholding for Machinists E-Book

Tim Stevens

• Herausgeber: Crowood
• Kategorie: Lebensstil
• Sprache: Englisch

Veröffentlichungsjahr: 2017

Beschreibung

Workholding for Machinists explains the various workholding options that are available to the metalworker, together with the principles behind them. The book explains the importance of precision in holding work in place and also the importance of tools and machines being held securely, so that the machinist may avoid damage to the machine and to the work being undertaken, and thus achieve a high quality end product. The emphasis is on creating good work within a limited budget, and a limited range of resources. The topics covered in this new book include: work holding on lathes and milling machines; collets and collect chucks; turning between centres; turning on a faceplate and tool holding. Fully illustrated with 118 photographs and diagrams.

Leseprobe

CROWOOD METALWORKING GUIDES

WORKHOLDING

FOR MACHINISTS

TIM STEVENS

THE CROWOOD PRESS

First published in 2017 by

The Crowood Press Ltd

Ramsbury, Marlborough

Wiltshire SN8 2HR

www.crowood.com

This e-book first published in 2017

© The Crowood Press 2017

All rights reserved. This e-book is copyright material and must not be copied, reproduced, transferred, distributed, leased, licensed or publicly performed or used in any way except as specifically permitted in writing by the publishers, as allowed under the terms and conditions under which it was purchased or as strictly permitted by applicable copyright law. Any unauthorised distribution or use of thistext may be a direct infringement of the author’s and publisher’s rights, and those responsible may be liable in law accordingly.

British Library Cataloguing-in-Publication Data

A catalogue record for this book is available from the British Library.

ISBN 978 1 78500 239 7

Man is a tool-using animal … without tools he is nothing, with tools he is all.

Thomas Carlyle (1795–1881)

Safety is of the utmost importance in every aspect of metalworking. The practical workshop procedures and the tools and equipment used in metalworking are potentially dangerous. Tools should be used in strict accordance with the manufacturer’s recommended procedures and current health and safety regulations. The author and publisher cannot accept responsibility for any accident or injury caused by following the advice given in this book.

Contents

1 Introduction

2 Workholding on Lathe and Milling Machine

3 Collets and Collet Chucks

4 Turning Between Centres

5 Workholding on the Vertical Mill

6 Boring and Milling on the Lathe

7 Turning on a Faceplate

8 Other Workholding Methods

9 Tool Holding

10 Projects for Your Own Workholding Needs

Glossary

Useful Addresses

Index

1 Introduction

This book is intended primarily to help those who are relatively new to the work of the machinist; the intention is to bring together in one volume a wide range of work-holding methods along with the principles behind them, many of which go back to the days before electric power was invented, even in some cases to the chair bodger in the woods and the clockmaker in the remotest valleys of the Alps. It is also intended to help the raw beginner in this line of work and to form a guide for those whose skills, and perhaps workshops, are not yet fully developed. Do not be surprised, then, to find an explanation of some things you know to be perfectly obvious. Too often, what is obvious to one is something another has never even thought about. The writers of manuals themselves are not always free from this sort of thinking. How many times do we read advice in a manual to use a suitable tool or carry out a task in the normal way? It is hoped that in these pages you will find out (or be reminded) what a suitable tool might be, and what the normal way is, and more than that, you may begin more clearly to understand why and to fill one or two of the gaps in your knowledge.

To start this process, we need to be clear about what we mean. Engineering has its jargon, like all trades and professions, so where there is a word that might not be familiar or one used in a special engineering or scientific sense, it will be shown first in quotes ‘thus’. The term ‘normal’, which we have just used in an everyday sense, for example, also has a particular (and quite distinct) meaning in engineering drawing: a ‘normal’ line is one at right angles to a surface or to another line. The term normalized is also used in describing a particular heat treatment of steel. Most such terms are explained in detail in the glossary towards the end of the book. It may help, too, if we are clear about other details of word use. This book is written in British English, so you can expect the spellings of words like centre and vice to be English.