AWS C7.2 : 1998

Personnel
Foreword
List of Tables
List of Figures
1. Scope
2. Glossary
    2.1 References
3. Safety Considerations
    3.1 Introduction
    3.2 General Safety
    3.3 Laser Safety
    3.4 Electrical Hazards
    3.5 Laser Radiation Hazards
    3.6 Visible Radiation Hazards
    3.7 Hazards from Fumes and Gases
    3.8 References
4. Equipment Description
    4.1 Description of Process
    4.2 CO[2] Lasers
    4.3 Nd: YAG Lasers
    4.4 Other Types of Material Processing Lasers
    4.5 Laser Systems
    4.6 Fixturing
    4.7 Recommended Reading
5. Process Control and Monitoring
    5.1 Introduction
    5.2 Laser Beam Quality
    5.3 Power Density Control
    5.4 Laser Power Measurement
    5.5 Laser Beam Characterization
    5.6 References
6. Laser Beam Welding
    6.1 Process Description
    6.2 Advantages and Limitations
    6.3 Types of Welding Lasers
    6.4 LBW Process Parameters
    6.5 Laser-Material Interaction
    6.6 Designing for Laser Welding
    6.7 CNC for Laser Welding
    6.8 Thick-Section LBW with High-Power CO2 Lasers
    6.9 Thin-Section LBW
    6.10 References
7. Laser Welding Metallurgy
    7.1 Introduction
    7.2 Heat-Affected Zone (HAZ) Effects
    7.3 Fusion Zone Effects
    7.4 Metallurgical Considerations for Welding
         Various Materials
    7.5 Dissimilar Metal Joining
    7.6 References
8. Laser Beam Cutting (LBC) and Laser Beam Drilling (LBD)
    8.1 Process Descriptions
    8.2 Advantages and Limitations of LBC and LBD
    8.3 Types of Cutting and Drilling Lasers
    8.4 Laser Beam Cutting Parameters
    8.5 Materials
    8.6 Characteristics of Cuts
    8.7 CNC for Laser Cutting
    8.8 Parameter Selection for LBC
    8.9 Parameter Selection for LBD
    8.10 References
9. Record Keeping
    9.1 Introduction
    9.2 Factor Description
10. Inspection and Testing
    10.1 Introduction
    10.2 Weld Inspection
    10.3 Inspection Techniques
    10.4 Inspecting Laser-Cut Parts
    10.5 Acceptability Limits
11. Specifications for Laser Welding
    11.1 Purpose
    11.2 Specification Types
12. Equipment Maintenance
    12.1 Objective
    12.2 Maintenance Schedule and Records
    12.3 Troubleshooting
    12.4 Specific Components
    12.5 Alignment
13. Personnel Training
    13.1 Safety
    13.2 Laser System Operation
    13.3 Laser System Maintenance
    13.4 Other Training
    13.5 Sources of Training
Annex A - Guidelines for Preparation of Technical Inquiries
          for AWS Technical Commit

Defines a description of laser beam equipment and procedures that can be used for welding, cutting, and drilling of various materials. Stresses the process basics, parameters, and applications. Practical information has been included in the form of figures, tables, and graphs which should prove useful in determining capabilities and limitations in the processing of various materials.