Page 9 - Welding Robots Technology, System Issues, and Applications

Contents

List of Figures.......................................................................................................xv
1. Introduction and Overview................................................................................1

1.1 Introduction.................................................................................................1
1.1.1 Why Robotic Welding and a CAD Programming Interface?..............3
1.2 Historical Perspective..................................................................................6
1.2.1 Welding ..............................................................................................7
1.2.2 Robotics............................................................................................13
1.3 Why to Automate Welding?......................................................................17
1.3.1 Example of an SME Based Industrial Robotic System.....................17
1.3.2 Are Robots Adapted to Robotic Welding? .......................................22
1.4 Objectives and Outline of the Book ..........................................................23
1.5 References.................................................................................................24

2. Welding Technology.........................................................................................27
2.1 Gas Tungsten Arc Welding (GTAW)........................................................27
2.1.1 Introduction.......................................................................................27
2.1.2 Welding Equipment..........................................................................28
2.1.2.1 Power Sources .......................................................................28
2.1.2.2 Welding Torch.......................................................................29
2.1.2.3 Non-consumable Electrodes..................................................29
2.1.2.4 Arc Striking Techniques........................................................30
2.1.2.5 Shielding Gas Regulator........................................................31
2.1.3 Process Parameters ...........................................................................31
2.1.3.1 Current...................................................................................31
2.1.3.2 Welding Speed.......................................................................33
2.1.3.3 Arc Length.............................................................................33
2.1.3.4 Shielding Gases .....................................................................33
2.1.3.5 Filler Metals...........................................................................34
2.1.3.6 Electrode Vertex Angle .........................................................34
2.1.3.7 Cast-to-cast Variation............................................................34

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