MACH 2024 SHOW GET INTO THE GROOVE
F
or Migatronic’s [Stand 19-721] Sigma Select range the MIG/MAG function Intelligent Current Control
(ICC) makes any welder able to weld with varying stick-out and still achieve high quality and penetration. This supports the reduction of the groove angle size in workpieces, resulting in fewer welds needed to fill the gap. Benefits of reducing the groove angle
include improved weld quality because of the heat-input is not affected by changes in stick-out. Fewer weld seams are requires to fill the groove, reducing the time spent per weld, up to three times faster filling of grooves compared to using MMA (stick)
welding. It also reduces the amount of filler material with consequential cost savings on consumables. Use the same MIG welding machine
for both the root pass and additional layers. With ICC, you can maintain the arc pressure and current flow even with a long stick-out and achieve optimal penetration. With ICC, it is possible to reduce the
groove angle size on your plates to 30°. ICC is ideal for multipass welding with narrow gaps; root passes; thick materials in all welding positions. Normally, the set welding current
determines the desired current intensity. Varying stick-out affects resistance and, consequently, the electrical current intensity. This variation leads to changes in the delivered current. With ICC, the set welding current remains constant throughout the welding process for stick- out lenghts up to 40 mm. What you set on the control panel is what you get. When using standard DC welding and
a short stick-out, the stability of the arc is perfect. However, with a long stick-out, the arc pressure decreases, resulting in an unstable arc and inadequate penetration. With ICC, you can maintain the arc pressure and current flow even with a long
stick-out and achieve optimal penetration. Choose a slim gas nozzle and contact
tip for your torch to maintain the same focused arc as with regular DC welding. Use it for the root pass and the first few layers in your narrow gap weld. The slim shape makes you able to reach even further. Switch back to a regular gas nozzle when necessary to ensure optimal gas protection.
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