AWS D3.7 : 2004

Personnel
Foreword
List of Tables
List of Figures
1. General
   1.1 Scope
   1.2 Welding Processes
   1.3 Comparison of Welding Processes
   1.4 Serviceability of Welded Aluminum Hulls
   1.5 Workmanship
   1.6 Sources of Information
2. Aluminum Hull Materials
   2.1 General
   2.2 Marine Aluminum Alloys
   2.3 Temper Designations
   2.4 Aluminum Product Forms
   2.5 Welding Filler Metals
   2.6 Filler Metal Selection
3. Preparation for Construction
   3.1 General
   3.2 Handling and Storage
   3.3 Cutting and Edge Preparation
   3.4 Backgouging
   3.5 Finishing and Contouring
   3.6 Cleaning for Welding
   3.7 Forming and Bending
   3.8 Preheat
4. Welding Processes and Equipment
   4.1 General
   4.2 Gas Metal Arc Welding
   4.3 Gas Tungsten Arc Welding
   4.4 Mechanized Welding
   4.5 Stud Welding
5. Qualification Procedures for Welding
   5.1 General
   5.2 Procedure Qualification
   5.3 Typical Test Coupon
   5.4 Performance Qualification
   5.5 Record Keeping
6. Welding Procedure and Techniques
   6.1 General
   6.2 Fitting, Aligning, and Assembling
   6.3 Weld Backing
   6.4 Butt Joints
   6.5 Fillet Welds
   6.6 Plug and Slot Welds
   6.7 Inserts and Doublers
   6.8 Snipes and Scallops
   6.9 Oil and Water Stops
   6.10 Coamings
   6.11 Avoiding Joint Corrosion
   6.12 Strongbacks
   6.13 Clamping
   6.14 Tack Weld Placement and Size
   6.15 Residual Welding Stresses and Distortion
   6.16 Welding Sequence
   6.17 Angular Distortion
   6.18 Interpass Temperature
   6.19 Welding Stress Relief
   6.20 Inspection of Welds
   6.21 Repair of Welds
   6.22 Metal Straightening
   6.23 Repair Welding of Aluminum Hulls
   6.24 Welding Power Connections
7. Safety
   7.1 Introduction
   7.2 Fumes and Gases
   7.3 Radiation
   7.4 Electrical Hazards
   7.5 Fire Prevention
   7.6 OSHA Regulations
Metric Conversion Factors
Nonmandatory Annexes
Annex A - Codes and Other Standards
Annex B - Quantity of Filler Metal Required for Welded
          Joints in Aluminum Made by GMAW and GTAW Processes
Annex C - Guidelines for Preparation of Technical Inquiries
          for AWS Technical Committees
List of AWS Documents on Welding in Marine Construction

A guide to proven processes, techniques, materials and procedures for welding aluminum hulls and related ship structures, applying particularly to the welding of aluminum hulls over 30 ft (9 m) in length and made of sheet and plate 1/8 in. (3.2 mm) thick and greater.