Pulse Welding Tips

Equipment Selection

• According to Lincoln Electric, when the difficulty of pulse welding decreased, the availability of pulse welding equipment increased. Choosing the right equipment is important before welding even begins. Because pulse welding operates over a wider power range, choose pulse welding equipment capable of operating over vast power ranges. Pulse welding guns run hotter than the average welding gun, so users should consider larger, self-cooling guns for extended use.

Setup Tips

• Besides following standard welding safety precautions, users should observe proper setup procedures specific to pulse welding equipment. A higher pulse requires better grounding, for instance, so users must be sure to establish safe electrical grounding for their equipment. Inductance is a problem with pulse equipment because it reduces pulse effectiveness. Minimize this problem by only using the length of cable needed and avoiding coiling cable.

Welding Tips

• When operating pulse welding equipment, Welding Tips and Tricks recommends using the appropriate pulses per second (pps) for metal thickness. Applying higher pulses per second for increasing thickness is the rule of thumb. About 50 pps should be used for 0.125-inch thick steel, while 150 pps should be used for 1-inch thick metal shafts. The lowest amperage possible is best, but not so low that the metal takes too long to puddle. Weld in short stitches to avoid pulse distortion and weld as tightly as possible when dealing with metal joints

source:ehow.com