Shielded Metal Arc Welding vii Copyright Goodheart-Willcox Co., Inc. May not be reproduced or posted to a publicly accessible website. Contents Unit 1 Introduction to Arc Welding .......................................................................... 1 Unit 2 Measurement in Welding ............................................................................... 5 Unit 3 Welding Safety .................................................................................................11 Unit 4 Common Types of Welds and Joints ........................................................... 19 Unit 5 Welding Symbols ........................................................................................... 25 Unit 6 Arc Welding Equipment ............................................................................... 33 Unit 7 Types of Arc Welding Machines .................................................................. 39 Unit 8 Electrodes ......................................................................................................... 43 Unit 9 Selecting the Proper Electrode ..................................................................... 49 Unit 10 Joint Preparation ............................................................................................. 53 Unit 11 Preparing to Weld ........................................................................................... 59 Unit 12 Running Short Beads ..................................................................................... 65 Unit 13 Running Continuous Beads ......................................................................... 69 Unit 14 Running Multidirectional Beads................................................................. 73 Unit 15 Padding............................................................................................................. 77 Unit 16 Welding Problems—How to Solve Them .................................................. 81 Unit 17 Controlling Distortion ................................................................................... 87 Unit 18 Welding Square-Groove Joints .................................................................... 95