Lincoln Electric IM649 manual Pulse Wave Shaping Principles, Appendix Overview, Appendix a

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Appendix A

PULSE WAVE SHAPING PRINCIPLES

A-1

A.1 APPENDIX OVERVIEW

This appendix provides a series of discussions on pulse wave shaping principles and the development of custom GMAW pulse waveforms. The contents of this appendix are arranged as follows:

Paragraph No./Title

Contents Description

A.2

GMAW Pulse Overview

How the pulse waveform transfers weld droplets to the

 

 

weld surface

A.3

Adaptive and Non-Adaptive

How WFS and primary wave shape parameters effect

 

Mode

welding

A.4

Pulse Wave Design Process

Flowchart and step by step descriptions of the pulse

 

 

wave design process

A.5

Primary Pulse Waveform

How peak current, peak time, frequency, and

 

Components

background current effect weld droplet transfer

A.6

Secondary Pulse Waveform

How ramp up rate, % ramp overshoot, tailout speed,

 

Components

tailout time, stepoff amperage, and background time

 

 

effect weld droplet transfer

A.7

Application Exercise

Sample development of a power wave welding program

 

 

using Wave Designer

WAVE DESIGNER

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Contents Wave Designer TM Page Table of Contents Wave Designer Software License Agreement License InformationIii License Information KEY Topics IntroductionProduct Overview User ResponsibilityWelding Equipment Requirements Software Release DataSoftware Installation Software Installation ProcedureFile Storage Locations Welcome to Wave Designer Equipment Interface ConnectionsControl Board DIP Switch Setting EQUIPMENT/SOFTWARE Startup Upgrade FirmwareSynergic Welding and Workpoints Software OperationWaveform Editor Window Working in Wave DesignerAbout the Procedure File Menu Waveform Editor Tool BARTools Tools MenuWave Designer Pro Waveform Editor Print MenuMenu Editing and Selecting WorkpointsWorkPoint Editor Editing WorkpointsEfforts Selecting WorkpointsExpand Graphic Editing Variable ParametersReference Paragraph see Appendix a Wave Design ProcessDownloading Wave Shapes Flashing PowerWave Custom Weld FilesAutosave Software Operation Using the ARC Scope Window ArcscopeIntroduction GSF Other ARC Scope OptionsFile Arcscope Overview Wave Designer Troubleshooting Procedure TroubleshootingTroubleshooting Pulse Wave Shaping Principles Appendix OverviewAppendix a Figure A-1. Pulse Waveform Parameters Gmaw Pulse OverviewFigure A-2. Weld Droplet Transfer Adaptive and NON-ADAPTIVE Mode Adaptive ModeNON-ADAPTIVE Mode Pulse Wave Design Process Figure A-4. Process FlowchartSelecting a Starting Wave Shape Select a Workpoint Customizing the Wave ShapeAdapting Stickout Select an Adaptive Type Optional Close the Adaptive Loop / Adjust the Peak VoltageStart Control Adjust the Start Control Parameters OptionalShorting Control Adjust the Shorting Control Parameters OptionalEnd Conditioning Adjust the End Condition Parameters OptionalDeveloping the 2nd Workpoint Go Figure / Make the Waveform SynergicPeak Current and Peak Time Primary Pulse Waveform ComponentsBackground Current FrequencySecondary Waveform Parameters Application Exercise Fresa Start Control Pulse Waveform Editor 28750046 Pulse Wave Shaping Principles Appendix B STT Wave Shaping PrinciplesPeak Time Peak Amps Tailout Speed STT OverviewFigure B-2. Weld Droplet Transfer STT Surface Tension Transfer Surface Tension TransferSTT Wave Shaping Principles Reference Paragraph see Appendix B STT Wave Design ProcessSelecting a Starting Wave Shape Inch / min meter / min Go Figure Find the Optimal Arc Characteristics STT Start Control WorkPoint Editor Peak Current Primary STT Waveform ComponentsTailout Pinch Start Secondary STT Waveform ComponentsPINCH/PEAK Peak TimeSTT Waveform Editor STT Waveform Editor Index-1 IndexIndex-2 Voltage Index-3Index-4