Plasma Arc Welding

1
Plasma Arc Welding
Linnert, Welding Metallurgy, AWS, 1994
2
AWS Welding Handbook Ed 8 Vol 1 1987
3
Stinchcomb, Welding Technology Today, Prentice
Hall, 1989
4
Advantages

• Greater Energy Concentration
• Improved arc stability over other processes
• Higher heat content, Higher travel speeds
• Greater penetration capabilities
• Finer sections can be welded with low current
  PAW than GTAW

5
Disadvantages

• Operator skill required is slightly greater than
  for GTAW
• Equipment more expensive
• Orifice replacement necessary