Lincoln Electric IM764 RED-D-ARC EX350i - Manual (Page 18)

B-7 OPERATION B-7
PULSE PROGRAMS:
EX350i
MODE IMP*
.030 Steel 65 - 1200
.035 Steel 55 - 800
.045 Steel 50 - 700
.052 Steel 75 - 550
.045 Metal Core 50 - 650
.052 Metal Core 50 - 500
.030 Stainless Ar Blends 85 - 770
.030 Stainless He Ar CO2 110 - 770
.035 Stainless Ar Blends 65 - 770
.035 Stainless He Ar CO2 75 - 770
.045 Stainless Ar Blends 50 - 600
.045 Stainless He Ar CO2 50 - 600
.035 Aluminum 4043 100 - 700
.035 Aluminum 5356 115 - 740
3/64 Aluminum 4043 80 - 550
3/64 Aluminum 5356 85 - 700
1/16 Aluminum 4043 75 - 325
1/16 Aluminum 5356 75 - 450
.035 Nickel Alloys (Non Adaptive) 80 - 700
.045 Nickel Alloys (Non Adaptive) 75 - 550
COMMENTS
The EX350i pulse programs are non-synergic and allow indepen-
dent control of the wire feed speed and the arc length. The Output
Control Knob on the EX350i, adjusts an "SPD" value. Similar to
trim, the "SPD" value indicates the relative arc length setting. The
value of "SPD" is meant to be a starting point at which to set the
arc length relative to the wire feed speed. Depending on the appli-
cation, the "SPD" value can be adjusted to obtain the desired arc
length.
The "SPD" value displayed on the EX350i may not match the
actual wire feed speed!
The operation of the Arc Control knob on the EX350i is similar to
the Power Wave series. As Arc Control is increased, the frequency
is increased and the background reduced. Decreasing Arc Control
will reduce frequency and increase background current. Arc
Control acts to fine tune the arc plasma to the specific application.
Preferred gas selections:
Steel Argon Blends = Argon with CO2 additions from 2 to 20
% or Oxygen additions from 2 to 5%.
Stainless Argon Blends = Argon with Oxygen additions up to 2% Stainless Argon Blends = Argon with Oxygen additions up to 2%.
Stainless He Ar CO2 = ~ 90% Helium, 7 1/2 % Argon 2 1/2
CO2
Aluminum 100% Argon
The Nickel Alloy pulse programs are non adaptive. The operator
sets the output control knob to deliver the correct arc length at
desired wire feed speed and stick out. While welding, the operator
manipulates the stick out to maintain the correct arc length. This
method of operation produces very stable arc performance consid-
ering the nature of nickel alloys.
Preferred gas: Argon/Helium Blends = for the best results add
helium to the argon base from 0-25%.
.035 4043 (4x Pulse on Pulse) 120 - 600
3/64 4043 (4x Pulse on Pulse) 85 - 400
.035 5356 (5x Pulse on Pulse) 130 - 700
3/64 5356 (5x Pulse on Pulse) 100 - 550 Arc Control = Pulse on Pulse frequency. For faster travel
speed welds, the arc control should be increased.
For larger puddle, slower travel speeds, the arc control
should be decreased.
PULSE ON PULSE
*IPM (INCHES PER MINUTE)