Lincoln Electric IM892-C manual Pulse-on-Pulse Welding, Figure B.9

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B-16	OPERATION	B-16

ALUMINUM SYNERGIC GMAW-P (PULSED MIG)AND GMAW-PP (PULSE ON PULSE) WELDING

The POWER FEED™ 25M and Power Wave welding power source combine to readily produce top quality aluminum welds with excellent appearance, little spat- ter and good bead shape. Push-pull guns are avail- able for consistent feeding when welding a long dis- tance away from the wire feeder.

Pulse-on-Pulse Welding

The Power Wave system offers both traditional pulse and Pulse-on-Pulse™. Pulse-on-Pulse (GMAW-PP) is an exclusive waveform for aluminum welding. Use it to make welds with a "stacked dime" appearance, similar to GTAW welds.

FIGURE B.9

The pulsing frequency is adjustable. Changing the fre- quency modulation (or arc control) of the waveform changes the ripple spacing. Faster travel speeds may be achieved by using higher values of frequency mod- ulation.

FIGURE B.10

Frequency Modulation = -10 Wide weld and ripple spacing, slow travel speed.

FIGURE B.11

Frequency Modulation = 10 Narrow weld and ripple spacing, fast travel speed.

POWER FEED™ 25M

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Contents Power Feed 25M Safety Electric Shock can kill Welding and Cutting Sparks can Cause fire or explosion IiiPrécautions DE Sûreté Please Examine Carton and Equipment For Damage Immediately On-Line Product RegistrationTable of Contents Gearing WFS Range Wire Sizes Height Width Depth WeightPower Feed 25M Input Voltage ± 10% Input AmperesSafety Precautions LocationHigh Frequency Protection Electric Shock can KillPIN Arclink Control CablesCable Connections To install Weld Cable SizeCoaxial Weld Cable Table A.1Build UP of Shielding GAS MAY Harm Health or Kill Electrode PolarityShielding GAS Connection Changing the Drive Motor Gear Ratio OFFWire Drive Configuration Procedure to Install Drive Rolls and Wire GuidesRemote Sense Lead Specifications Loading Spools of WireTypical System Configurations Direct Current Open CircuitVoltage Input VoltageDefinition of Welding Terms Duty CycleEquipment Limitations Recommended Power SourcesRecommended Processes Case Front Controls Code See Figure B.1Case Front Controls Code 11456 ON-OFF Switch Status LEDTable B.1 DefinitionMaking a Weld with Waveform Technology Power Sources Smaw Stick WeldingMSP4 Operation Process ModeSmaw Stick Welding Display NON-SYNERGIC Gmaw and Fcaw Welding Three non-synergic welding modes are availableMSP4 Operation Non-Synergic Gmaw and Fcaw Welding DisplayGmaw MIG Synergic Welding Figure B.5Gmaw MIG Synergic Welding Display Synergic CV Voltage DisplaySteel and Stainless Synergic GMAW-P Pulsed MIG Welding ARC ControlSteel and Stainless Synergic GMAW-P Pulsed MIG Welding 220 Pulse-on-Pulse Welding Figure B.9Aluminum GMAW-P and GMAW-PP Aluminum Pulse WeldingAluminum GMAW-P and GMAW-PP Welding Figure B.14Aluminum Pulse and Pulse-On-Pulse Synergic Weld Display Weld ModesGMAW-STT Welding Figure B.15GMAW-STT Weld ModesTailout Peak Current Figure B.16Background Current Figure B.17 Gtaw TIG Welding Gtaw Tigwelding Figure B.17a Figure B.17aSET-UP Features Menu Figure B.17b Setup MenuUser Defined Parameters Parameter Definition Procedure Change Method Stall Factor AdjustmentParameter Definition Gun Offset Adjustment Crater DelayReset Consumable Weight TIG Gas Control100 View Diagnostics Parameter Definition Push-Pull Gun Knob BehaviorSense From Studs Show Test Modes107 View Power Source Protocol Parameter Definition 103 View Software Version Information104 View Hardware Version Information 105 View Welding Software InformationParameter Definition 503 Memory Button Disable 504 Mode Select Panel Lock505 Setup Menu Lock 506 Set User Interface PasscodeParameter Definition 507 UI Clear All Memories 509 UI Master LockoutPROCEDURE/MEMORY Panel OPERA- Tion User MemoriesLimits Parameter Range UnitsLimits may be set for MSP4 DisplayParameter Name High LimitLow Limit Dual PROCEDURE/MEMORY Operation For Code 11456 and HigherMemory Set Limits 200 Memory ValueInternal Controls for Code DescriptionInternal Controls for Code 11456 and higher EscriptionCold FEED/GAS Purge Switch Light SwitchPressure ARM Adjustment Heater SwitchStep Trigger Operation STEP- Trigger OperationStep Trigger Code 11456 and higherWeld PreflowRUN-IN Postflow UpslopeBurnback Crater & Downslope Start & UpslopeCrater Figure B.22 Start DownslopeDescription Rear ControlsOperation on Lincnet Power Sources Flow MeterScfh Liter/MinDrive Roll Kits Used Factory Installed EquipmentWire Type Electrode Size KP KIT K2593-xx #1 Co-Axial Power Cable K2683-xx Heavy Duty ArcLink Control Cable K1500-5 Gun Receiver Bushing compatible Installation of the K590-6 Water Cooling KIT Water Cooled Guns Calibration Specification Routine MaintenancePeriodic Maintenance Troubleshooting Symptoms Description Possible AdjustmentsOutput Problems Troubleshooting Wiring Diagram Power Feed 25M G5585Diagrams Dimensions for Code Dimensions for Codes 11456 Precaucion Warnung