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Welding procedure qualification 

How to qualify your ICE™ procedure 

Welding procedure qualification for the ICE™ process is the same as any SAW. All wires, including the cold wire, must be specified according to ISO 15614-1. Wire diameter, wire feed speed and classification of composition and mechanical properties must be registered in the WPQR. 

  • New welding procedure qualification is required when a cold wire solution is implemented.
  • A welding procedure qualified with cold wire cannot be used without cold wire, and vice versa.
  • If a flux-cored wire is qualified, then another flux-cored wire with the same classification but from a different manufacturer cannot be used without requalification.
  • The cold wire feed-speed-validity range must be set by the manufacturer (your local ESAB specialist can advise on this).
  • The specified cold wire feed speed and range must be recorded in the WPQR.

Determining validity range for cold wire feed speed
ESAB's experience and research into cold wire feed speed shows that, as long as the process is stable and the wires used are of the same classification, the mechanical properties of both hot and cold wires remain unaffected when the cold wire feed speed is changed. Typically, the stable process range is 10-100% cold wire feed rate (cwfr) from the speed of the hot wires. For root runs and runs fusing both flanges, the recommendation is 10%-60% cwfr. The values vary to some extent, depending on application, joint configuration and amperage. 

The ESAB ICE™ specialists can provide support and advice when qualifying an ICE™ process. 

Read also the article "Welding procedure qualification for "cold wire" processes" by Mathias Lundin, CEO Swedish Welding Commission.