AWS D10.7 : 86(R1992)

Personnel
Foreword
1 History of aluminum pipe welding
2 Aluminum pipe alloys and their characteristics
3 Welding characteristics of aluminum
3.1 Aluminum oxide
3.2 No color change
3.3 High heat conductivity
3.4 High coefficient of expansion
3.5 Weldability of aluminum alloys
4 Welding processes and equipment
4.1 Alternative current gas tungsten arc welding
      (GTAW)
4.2 Direct current electrode negative (DCEN)
4.3 Gas metal arc welding (GMAW)
4.4 Automatic welding
5 Welding materials
5.1 Gas nozzles - GTAW
5.2 Tungsten electrodes
5.3 Filler metals
5.4 Inert gas
6 Welding preparation
7 Welding conditions
7.1 Machine settings and other variables
7.2 Edge preparation
8 Weld backing
8.1 Permanent backings
8.2 Removable backings
9 Welding technique
9.1 Gas tungsten arc welding (manual welding)
9.2 Gas metal arc welding
10 Heat treatment
10.1 Preheating
10.2 Postweld heat treatment
11 Code requirements - welding qualifications and
      design
12 Safe practices
Appendices
A Nominal composition of wrought alloys
B Pipe diameters, wall thickness and weights
C Safety and health
D Document list
Tables
1 Guide to choice of filler metal for welding
      aluminum pipe
2 Gas tungsten arc welding - alternating current in
      the horizontal rolled position (with backing)
3 Gas tungsten arc welding - alternating current in
      the horizontal fixed position (with backing)
4 Gas tungsten arc welding - alternating current in
      the vertical position (with backing)
5 Gas tungsten arc welding - alternating current in
      the horizontal rolled position (without backing)
6 Gas tungsten arc welding - alternating current in
      the horizontal fixed position (without backing)
7 Gas tungsten arc welding - alternating current in
      the vertical position (without backing)
8 Gas tungsten arc welding - direct current, DCEN,
      horizontal roller position
9 Gas tungsten arc welding - direct current, DCEN,
      horizontal fixed position
10 Gas tungsten arc welding - direct current, DCEN,
      vertical position
11 Gas metal arc welding - in the horizontal rolled
      position
Figures
1 Standard V-groove bevels
2 Pipe end preparation for U-groove
3 Finished weld in U-groove
4 Possible backing arrangement for use with V-groove
      welds
5 Gas tungsten arc welding torch directions,
      horizontal fixed position

Facilitates selection and specification of welding procedures for aluminum and aluminum alloy pipe to minimize or avoid difficulties in the welding of such.