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Published on Oct 19, 2010
Pulsed MIG welding can be used to reduce welding fumes by up to 80 to 90%. However the proper fast rise time Pulse MIG Power System must be used. This video presents data provided in two American Welding Society technical papers. One defines what John Deer was able to accomplish in production operations. It also discusses the need for very rapid current rise times needed to achieve the low fume objective. Special power source design is needed to achieve these low fume levels. I discusses the difficulties in starting the pulsed MIG arc and how limiting the peak flow rate at the start to avoid excess turbulence is a significant starting benefit.