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AWS C7.2 : 1998

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

RECOMMENDED PRACTICES FOR LASER BEAM WELDING, CUTTING AND DRILLING
Superseded date

01-15-2017

Published date

01-01-1998

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.

DocumentType
Standard
PublisherName
American Welding Society
Status
Superseded
SupersededBy

AWS C5.10/C5.10M : 2003 RECOMMENDED PRACTICES FOR SHIELDING GASES FOR WELDING AND CUTTING
AWS D17.1 : 2001 SPECIFICATION FOR FUSION WELDING FOR AEROSPACE APPLICATIONS
AWS WHB.3.9 : 2007 WELDING PROCESSES - PART 2: WELDING HANDBOOK, 9TH EDITION, VOL. 3
AWS DPW : 1999 THE DESIGN AND PLANNING MANUAL FOR COST-EFFECTIVE WELDING
AWS G2.3M/G2.3 : 2012 GUIDE FOR THE JOINING OF SOLID SOLUTION AUSTENITIC STAINLESS STEELS

NFPA 79 : 2015 ELECTRICAL STANDARD FOR INDUSTRIAL MACHINERY
ANSI Z136.1 : 2014 SAFE USE OF LASERS
ANSI/ASSE Z117.1 : 2009 SAFETY REQUIREMENTS FOR ENTERING CONFINED SPACES
NFPA 51B : 2014 FIRE PREVENTION DURING WELDING, CUTTING, AND OTHER HOT WORK
NFPA 70 : 2017 NATIONAL ELECTRICAL CODE
AWS FGW : 0 FUMES AND GASES IN THE WELDING ENVIRONMENT
ANSI Z87.1 : 2015 OCCUPATIONAL AND EDUCATIONAL PERSONAL EYE AND FACE PROTECTION DEVICES
ANSI Z49.1 : 2012 SAFETY IN WELDING, CUTTING, AND ALLIED PROCESSES

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