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By eliminating the "globular" arc mode, which is characterized by heavy and sticky spatter and higher energy than the short arc, the speed short arc
enables to:
Reduce the amount of distortions at high welding currents in the typical "globular" welding range
Reduce the amount of spatter compared to the globular mode
Achieve good weld appearance
reduce smoke emissions compared with the usual modes (up to 25% less)
Achieve good rounded penetration
Enable welding in all positions
Note: The CO2 programmes automatically and exclusively use the "soft" short arc and do not enable access to the speed short arc.
The "dynamic" short arc is not suitable for CO2, welding due to arc instability.
HPS – High Penetration Speed
HPS is a welding process designed by ALW matching the advantages of the Spray Arc and Short Arc modes.
As the welding voltage is lower than classical Spray Arc mode, the welding energy is lower and the welding materials less constrained. Managed by a well adapated dig
regulation
HPS propose the following advantages :
Have a very manoeuvrable arc despite the high welding mode used
Have a longer stick out allowing to weld in the bottom of the bevel while the preparation arc
Increase the penetration and to reduce or to eliminate the bevelled edge
Increase the productivity while limiting the preparations and increasing the feed speed of the filler metal
Eliminate the undercut effect of the base material
For more information, request to your contact welding.
NORMAL Pulsed MIG
Metal transfer in the arc takes place by detachment of droplets caused by current pulses. The microprocessor calculates all the Pulsed
MIG parameters for each wire speed, to ensure superior welding and striking results.
The advantages of pulsed mig are:
Reduced distortions at high welding currents in the customary "globular" welding and spray arc ranges
Enables all welding positions
Excellent fusion of stainless steel and aluminium wires
Almost complete elimination of spatter and hence of finishing work
good bead appearance
Reduced smoke emissions compared with customary methods and even-speed short-arc (up to 50% less);
Pulsed CITOPULS III 420-520 programs for stainless steel eliminate the small spatter that may occur on thin sheets at very low wire feed speeds. These "balls"
are caused by slight spraying of the metal at the time of droplet detachment. The extent of this phenomenon depends on the type and origin of the wires
These programmes for stainless steel have undergone improvements for operation at low currents and increasing the flexibility of use for thin sheet welding
using Pulsed MIG method.
Excellent results for welding thin stainless steel sheets (1 mm) are obtained using the pulsed MIG method with Ø 1 mm wire in M12 or M11 shield (average 30A
is acceptable).
The appearance of joints processed using, les CITOPULS III 420-520 is of a quality comparable with that achieved by tig welding
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SPEED SHORT ARC
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CITOSTEEL III / CITOPULS III 420-520
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