Lincoln Electric IM746 manual Recommended Welding Procedures for Power Mode Table B.3

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B-7

OPERATION

B-7

 

 

 

POWER MODE™

The Power Modeprocess was developed by Lincoln to maintain a stable and smooth arc at low procedure settings which are needed to weld thin metal without pop-outs or burning-through. For Aluminum welding, it provides excellent control and the ability to maintain constant arc length. This results in improved welding performance in two primary types of applications.

Short Arc MIG at low procedure settings.

Aluminum MIG welding.

Power Modeis a method of high speed regulation of the output power whenever an arc is established. It provides a fast response to changes in the arc. The higher the Power Mode Setting, the longer the arc. If a welding procedure is not established, the best way to determine the Power Mode Setting is by experimenta- tion until the desired output result is established.

In the Power Mode two variables need to be set:

Wire Feed Speed

Power Mode Trim

Setting up a Power Mode procedure is similar to set- ting a CV MIG procedure. Select a shielding gas appropriate for a short arc process.

For steel, use 75/25 Ar/CO2 shield gas.

For Stainless, select a Helium blend Tri-Mix.

For Aluminum, use 100% Ar.

Start by setting the wire feed speed based upon mate- rial thickness and appropriate travel speed. Then adjust the Volts/Trim knob as follows:

For steel, listen for the traditional frying eggsound of a good short-arc MIG procedure to know you have the process set correctly.

For aluminum, simply adjust the Volts/Trim knob until the desired arc length is obtained.

Note the Volts/Trim display is simply a relative number and DOES NOT correspond to voltage.

Some procedure recommendations appear in Table B.3.

Recommended Welding Procedures for Power Mode - Table B.3

 

MATERIAL

Aluminum 4043

Aluminum 5356

Mild Steel

Mild Steel

Mild Steel

Mild Steel

Mild Steel

Mild Steel

Stainless Steel

Stainless Steel

 

 

 

 

 

 

 

 

 

 

 

 

 

WIRE

E4043

E5356

L56

L56

L56

L56

L56

L56

E308L

E308L

 

 

 

 

 

 

 

 

 

 

 

 

 

WIRE SIZE

0.035

0.035

0.025

0.025

0.030

0.030

0.035

0.035

0.030

0.035

 

 

 

 

 

 

 

 

 

 

 

 

 

GAS

100% Ar.

100% Ar.

100% CO2

75/25 Ar/CO2

100% CO2

75/25 Ar/CO2

100% CO2

75/25 Ar/CO2

Tri-mix

Tri-mix

 

 

 

 

 

 

 

 

 

 

 

 

 

THICKNESS

SETTINGMODE

22 ga.

 

 

Not Recommended

100 / 0.8

Not Recommended

90 / 1.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20 ga.

 

 

120 / 1.0

120 / 1.0

100 / 0.7

100 /1.0

 

 

80 / 1.5

50 / 0.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18 ga.

 

 

140 / 1.7

140 / 1.5

110 / 1.5

110 / 1.5

100 / 2.5

100 / 2.5

110 / 2.0

110 / 2.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16 ga.

 

 

190 / 2.0

190 / 2.0

125 / 2.0

125 / 2.0

125 / 3.0

125 / 3.0

140 / 2.5

130 / 2.7

 

 

 

 

 

 

 

 

 

 

 

 

 

MATERIAL

/WFSPOWER

14 ga.

400 / 2.0

400 / 2.5

260 / 3.0

260 / 3.0

160 / 2.3

160 / 2.3

160 / 3.8

160 / 3.5

210 / 3.0

190 / 3.5

 

 

 

 

 

 

 

 

 

 

 

3/16

570 / 9.0

600 / 7.8

330 / 5.0

330 / 4.5

400 / 7.5

400 / 7.0

200 / 5.0

200 / 4.5

270 / 5.0

230 / 6.0

 

 

12 ga.

 

 

230 / 3.5

230 / 3.5

 

 

10 ga.

500 / 7.0

500 / 7.0

 

 

300 / 6.0

300 / 6.0

240 / 6.5

240 / 7.0

325 / 6.5

300 / 7.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1/4

700 / 9.1

700 / 8.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Not

Not

 

 

 

 

 

 

 

 

COMMENTS

Recommended

Recommended

 

 

 

 

 

 

 

 

below 400

below 400

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WFS

WFS

 

 

 

 

 

 

 

 

POWER WAVE 405

Image 26
Contents Power Wave Safety Power WaveElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcElectromagnetic Compatibility EMC Safety Thank You Table of Contents Installation Technical Specifications Power WaveSafety Precautions Select Suitable LocationVoltage Sensing Output CABLES, Connections and LimitationsNegative Electrode Polarity Electrode Voltage Sensing Table A.1Work Voltage Sensing System Description System ModelBasic Rules 6INSTALLATIONA-6System SET-UP Simple SystemSingle Group Multi-Head System Multiple Group SystemNo FH0 Alllowed Figure A.5 Single Group Multi-Head System Alternate MethodTWO Power Waves Welding with Multiple Power WavesControl Cable Specifications Control Board DIP Switch Receptacle SpecificationsDIP Switch Settings and Locations Recommended Processes and Equipment OperationGeneral Description Recommended ProcessesDuty Cycle and Time Period Required EquipmentLimitations Case Front ControlsFringe Procedures Case Front Layout Power WaveNominal Procedures Welding AdjustmentsVolts / Trim Welding ModeConstant Voltage Welding ARC ControlPulse Welding PULSE-ON-PULSE GMAW-PPTIG Gtaw Welding Procedures for PULSE-ON-PULSE Table B.2Benefits of Pulse on Pulse from Lincoln Electric SmawPower Mode Recommended Welding Procedures for Power Mode Table B.3Field Installed AccessoriesFactory Installed Optional EquipmentAlways wear a face shield and long sleeves when servicing MaintenanceCapacitor Discharge Procedure Troubleshooting HOW to USE Troubleshooting GuideUsing the Status LED to Troubleshoot System Problems Error code before the machine is turned offError Codes for the Powerwave Error Code # IndicationContact your local Lincoln Troubleshooting GuideAuthorized Field Service Facility Problems Possible Areas Recommended Symptoms Troubleshooting Troubleshooting Diagrams Connection Diagram Connection Diagram Semi-automatic Simple SystemDimension Print Precaucion Warnung