Part 1 Basic Craft Studies: Mechanical Engineering Complement PDF
Preview Part 1 Basic Craft Studies: Mechanical Engineering Complement
Macmillan Engineering Craft Studies Part 1 Basic Craft Studies Mechanical Engineering Complement General Editor H Spence Name ........................................................................................................................................................................... College ....................................................................................................................................................................... Employer ................................................................................................................................................................... Session ....................................................................................................................................................................... Class Ref. No ························································································································································· Day and Time Room Subject Teacher Macmillan Engineering Craft Studies Part 1 Basic Craft Studies Mechanical Engineering Complement C E Comber G W Holmes J K Millington R Payne J B Pratley Palgrave Macmillan @1970 C E Comber G W Holmes J K Millington R Payne J B Pratley All rights reserved. No part of this book may be reproduced or transmitted, in any form or by any means, without permission. First published 1970 Published by MACMILLAN AND CO LTD London and Basingstoke Associated Companies in New York Melbourne Toronto Dublin Johannesburg and Madras ISBN 978-0-333-11269-4 ISBN 978-1-349-00925-1 (eBook) DOI 10.1007/978-1-349-00925-1 EDITOR'S NOTE This series of books meets the requirements of the new Counci1 of Technical and projects, rather than relying on conventional listening and note-taking. Examining Bodies Craft Studies Courses. The texts are presented with great clarity. The large format includes space for written work and sketches by the The technical studies of the Part 1 course, which extend over a year, are student, thus reflecting the progressive nature of the new syllabus in which designed to suit both day release and block release students. The course student participation is encouraged. consists of a common engineering syllabus of the basic elements applicable to a number of engineering crafts, and an appropriate complementary There are two important aspects of the new CTEB Engineering Craft Studies syllabus biased towards a particular trade or craft. courses. Together with the Engineering Base, this book contains all the material in (a) They are specially designed for students undergoing planned training, the Part 1 Mechanical Engineering course. usually on programmes following the recommendations of the Industrial Training Boards. Henley College of Further Education (b) They form the further education complement of industrial training, Coventry involving the students in workshop and laboratory activities, investigations June 1970 ABOUT THIS BOOK This book will become your own complete record of your progress. Important material is intended to be at a level which will neither bore nor overwhelm facts are set out on the left-hand side of each page, and the right-hand side the student, but which will nevertheless demand an effort on his part. These has space for you to answer questions and make extra notes and sketches. investigations are proposed at the ideal stage of the course but could well be carried out as and when facilities are available. The books will become the The practical investigations are spread throughout the book, but can be comprehensive record of the student's progress and will reflect his particular carried out as and when equipment is available. By setting out the book in interests. this way we hope to save you a lot of tedious note-taking and make your A great deal of space is available for extra teaching notes which you may wish course more interesting. to give and for additional work by the students. These books cannot replace the teacher but provide a framework within which he can present information, ideas and principles in his own way. The authors already know how satisfying this student-centred course can be and hope that you and your students will NOTE TO TEACHER find it equally rewarding. Active student participation is encouraged throughout this series of books. C. E. Comber This approach will enable you to cover the large amount of material in the G. W. Holmes new syllabus by releasing, for productive and constructive work, time which J. K. Millington would otherwise be spent in note-taking. R. Payne J. B. Pratley Information is presented in parallel with material for student activity: questions to be answered and instructions for sketches and practical investigations. The Contents SECTION 1 Safety in the Workshop 2 SECTION 2 Measurement and Marking Out 12 SECTION 3 Engineering Materials 24 SECTION 4 Temperature, Heat, Friction, Lubrication 38 SECTION 5 Movement, Restraint and Location 58 SECTION 6 Material Removal 76 SECTION 7 Combination of Mechanical Operations 90 SECTION 8 Fabrication Processes 108 SECTION 9 Fastening and Joining 124 SECTION 10 Welding 132 SECTION 11 Principles and Application of Electricity 148 SECTION 14 Communication -Use and Interpretation of Drawings 158 SECTION 15 Workshop Calculations 184 The continuation of work started in the Engineering Base is indicated by* in the text. SECTION 1 Safety in the Workshop Personal safety and accident prevention Movement of materials Safe use of tools and machinery Health hazards Safety precautions when forging PERSONAL SAFETY AND ACCIDENT PREVENTION DRESS AND BEHAVIOUR* Numerous accidents are caused by people not behaving sensibly in the workshop. The dangers are not always immediately obvious. The table below may take some time to complete; perhaps months or even a whole year. Record the observations you make and include any others not listed. Number of times and dates Machine or Type of hazard Possible consequence of disregarding safe practice in each case seen to occur situation Talking to person operating a machine Leaving machine unattended while it is running Not using correct gangways Leaving equipment in dangerous positions MOVEMENT OF MATERIALS* Go into the work area and see if overhead cranes, gantry cranes, pulleys, or other types of mechanical lifting devices are used to convey material from one place to another. Inquire about the type and shape of material removed and the methods of loading, unloading and stacking. Type of material Method of lifting (ropes, Routes usually followed; Safety precautions and suggestions Lifting device used for sling platform, hooks, etc.) i.e. over or around work area for improving methods 3 Examine the lifting slings used in the workshop. Required frequency B.S. Type of tackle Markings Meaning of markings There should be information stamped on them of testing number or on a label. Note this and determine why the information is put there. Refer to the appropriate B.S. specifications for testing (B.S. numbers 781,2902,3458,3481, 1290 and 2052). PRECAUTIONS WHEN MOVING MATERIALS When material or equipment is moved, proper care must be taken to avoid causing accidents or creating hazards due to 1. careless slinging; 2. movement over an area in which people are working; 3. changes in floor level; 4. poorly maintained equipment. Show where ropes should be positioned to correctly sling the crate in the diagram. If the rope is hemp and not already spliced and looped, what type of knot What faults would you look for in a hemp rope before using it? ............................ .. should be used for slinging? .................................................................................................... . What sort of deterioration may make wire rope unsafe? ......................................... . ............................................................................................................................................................ ···························································································································································· ............................................................................................................................................................ ............................................................................................................................................................ ............................................................................................................................................................ ............................................................................................................................................................ 4
The list of books you might like
