Welding: Principles & Practices - Rilegato

Sacks, Raymond; Bohnart, Edward

Rilegato

ISBN 10: 0078250609 ISBN 13: 9780078250606

Casa editrice: McGraw-Hill Education, 2004

Riassunto

Click the links below for a sample of the Instructor's PowerPoints available to adopters!
Chapter 6 PowerPoint
Chapter 11 PowerPoint
Chapter 22 PowerPoint

This text introduces students to a solid background in the basic principles and practices of welding. It first introduces fundamental theory of the welding process (gas arc, semi-automatic, automatic, and robotic welding) and then provides practice jobs so students develop manipulative skills and technical understanding. Metals and their welding characteristics, safety practices, welding symbols, and the fundamentals of print reading are all covered.

Su questo libro

Recensione

American Welding Society Book Review

http://www.aws.org/w/s/wj/2005/01/016

BY R. DAVID THOMAS, JR.

Welding Principles and Practice, by Raymond J. Sacks and Edward R. Bohnart. Hardbound, 81/2 x 11 in., 1312 pages, third edition. Published 2004 by McGraw-Hill Companies, Inc., 1221 Avenue of the Americas, New York, NY 10020; (212) 512-2000; http://books.mcgrawhill.com/getbook.php?isbn=0078250609&template=. Price is $92.33.

This mammoth volume is a tremendous contribution for training welding operators of all degrees of expertise. It is divided into the following five units: Introduction to Welding and Oxyfuel; Shielded Metal Arc Welding; Arc Cutting and Tungsten Arc Welding; Gas Metal Arc, Flux Cored Arc, and Submerged Arc Welding; and High Energy Beams, Automation, Robotics, and Weld Shop Management. Diligent students who are challenged to master the skills of the welding processes and hope ultimately to advance to management positions will have in this volume a valuable resource, not only as he and she learn the basics, but also throughout their careers.

One of the textbook's great strengths is the style of writing that will allow young persons of high school age to comprehend the complexities that they will encounter as they embark on their journey toward a welding profession. It is to be hoped that its size and especially its weight (61/2 lb, 3 kg) will not become a deterrent. If a reader will read the opening chapter, he or she might well become entranced by the four-page overview and history.

This is followed by a section, "Welding as an Occupation." Here young women will be encouraged by the statement, "Many women find the work highly satisfying and are paid well at a rate equivalent to that of men." Then, they can see a photo of a woman arc welding in the overhead position.

Its chapters are sprinkled with brief marginal notes titled "Shop Talk," "Job Tip," or "About Welding," all of which offer a change of pace from concentration on study. Much of its length and heft results from its multitude of photos, sketches, and diagrams that add to interest and comprehension. Supplements to this book include an instructor's manual, student's workbook, and CD with PowerPoint lecture slides.

At the end of each chapter is a multiple choice test and review questions. There are also two exercises proposed under the heading Internet Activities, which start out with, "Using your favorite search engine..."; they encourage the student to discover the wealth of information on the Internet.

Having spent a career involved with filler metals, I decided to take the multiple choice test without first reading Chapter 12 on Shielded Metal Arc Electrodes. I scored 7 out of 10 with two of the answers half right. My conclusion was that it was a good test.

One feature of the book is the detailed discussion and illustrations of the welding equipment and the related tools used for assembly and inspection. All too often this aspect of training courses is overlooked, and the students are expected to absorb the essentials during use. Moreover, in each chapter relating to processes, an emphasis is on safe practices. Toward the end of the volume, on pages 1121 to 1156, Chapter 31, Safety, thoroughly covers the subject for both arc welding and oxyfuel welding. One would hope that students are referred to sections of that chapter before they embark on the practice jobs in the earlier chapters.

The chapters describing the individual welding processes are generally followed by chapters devoted to practice welds. As the techniques become ever more complicated, the reader must interpret shop drawings that illustrate the tasks. It is one thing to develop the skill to create acceptable welds, but one aspiring to supervise a welding department must learn the devices used by designers to describe the assembly.

Chapters 29 and 30 give details of drawing conventions, including tables of symbols for various types of welded joints. A student should be shown where in the volume the symbols are found when he or she faces the drawings in the practice job chapters. Present and new school instructors will most certainly want to evaluate this extensive program for training young people in welding technology. Many may already make use of instruction manuals offered by schools associated with Hobart, Lincoln, and other welding equipment suppliers. Several AWS publications, such as EG2.0-95 and EG3.0-96, offer guides for training entry-level and advanced welders, respectively.

The AWS Schools Excelling through National Skills Education (S.E.N.S.E.) columns on the tables of practice jobs appear at the end of chapters relating to arc welding. Chapter 15 covering pipe welding has many notes including references to ASME and API code certification tests, and AWS B2.1, Welding Procedure Specifications. It would have been helpful if the index included references to the AWS S.E.N.S.E. program, listing pages to these tables.

Young people undergoing training for careers in welding today should become familiar with the metric system of measurements. It would be awkward as in other AWS documents to insist that every dimension used would list both the U.S. Customary Units, in., ft, etc. as well as the rational metric equivalents. Nevertheless, it is regrettable that training of young people does not immediately require they use and learn to think in metric units. One recognizes that welders in U.S. industry today only too rarely require familiarity with metrics; yet the day is not too far off when welding schools should make greater use of the SI system of measurement in their training programs.

Fortunately, the appendix in this volume has seven tables for use when metric units are needed. Additional tables provide the data on standard drill and pipe sizes. Another, besides giving temperature equivalents in degrees Fahrenheit and Celsius, provides the melting points of metals and alloys, and the color scale for estimating temperatures. -------------------------------------------------------------------------------- R. DAVID THOMAS, JR., is a Fellow of the American Welding Society, Miami, Fla. (Welding Design and Fabrication 2005-01-16)

Contenuti

Unit 1 Introduction to Welding and Oxyfuel

1 History of Welding

2 Industrial Welding

3 Steel and Other Metals

4 Basic Joints and Welds

5 Gas Welding

6 Flame Cutting Principles

7 Flame Cutting Practice: Jobs 7-J1-J-3

8 Gas Welding Practice: Jobs 8-J1-J38

9 Braze Welding and Advanced Gas Welding Practice: Jobs 9-J39-J53

10 Soldering and Brazing Principles and Practice: Jobs 10-J-54-J55

Unit 2 Shielded Metal Arc Welding

11 Shielded Metal Arc Welding Principles

12 Shielded Metal Arc Welding Electrodes

13 Shielded Metal Arc Welding Practice: Jobs 13-J1-J25 (Plate)

14 Shielded Metal Arc Welding Practice: Jobs 14-J26-J42 (Plate)

15 Shielded Metal Arc Welding Practice: Jobs 15-43-J55 (Plate)

16 Shielded Metal Arc Welding Practice: Jobs 16-J1-J17 (Pipe)

Unit 3 Arc Cutting and Gas Tungsten Arc Welding

17 Arc Cutting Principles and Arc Cutting Practice: Jobs 17-J1-J7

18 Gas Tungsten Arc and Plasma Arc Welding Principles

19 Gas Tungsten Arc Welding Practice: Jobs 19-J1-J19 (Plate)

20 Gas Tungsten Arc Welding Practice: Jobs 20-J1-J17 (Pipe)

Unit 4 Gas Metal Arc, Flux Core Arc, and Submerged Arc Welding

21 Gas Metal Arc and Flux Cored Arc Welding Principles

22 Gas Metal Arc Welding Practice: Jobs 22-J1-J23 (Plate)

23 Flux Cored Arc Welding Practice Plate, Submerged Arc and Related Processes: Jobs FCAW-G Jobs 22-J1-11, FCAW-S Jobs 22-1-12, SAW 22-1

24 Gas Metal Arc Welding Practice: Jobs 22-J-1-J15 (Pipe)

Unit 5 High Energy Beams, Robotics and Weld Shop Management

25 High Energy Beams and Related Welding Processes

26 General Equipment for Welding Shops

27 Automatic and Robotic Arc Welding Equipment

28 Joint Design, Testing, and Inspection

29 Reading Shop Drawings

30 Welding Symbols

31 Safety

32 Welding and Bonding of Plastics

Dettagli dell?edizione

• Editore: McGraw-Hill Education
• Data di pubblicazione: 2004
• ISBN 10: 0078250609
• ISBN 13: 9780078250606
• Rilegatura: Copertina rigida
• Lingua: Inglese
• Numero edizione: 3
• Numero di pagine: 1276