STT Overview | Lincoln Electric IM649 instruction

B-2

STT WAVE SHAPING PRINCIPLES

Appendix B

B.2 STT OVERVIEW

Figure B-1 illustrates the variables of the STT welding process. Each of these variables can be programmed into a weld table using the Wave Designer software. Figure B-2 shows how the STT waveform and the primary variables produce a weld.

For more details on each of these variables, refer to Primary STT Waveform Components and Secondary STT Waveform Components in paragraphs B.5 and B.6 of this appendix.

FIGURE B-1. STT WAVEFORM PARAMETERS.

AMPERES

PINCH START

BACKGROUND AMPS

dV/dt CALCULATE

PEAK TIME

PEAK AMPS

TAILOUT

SPEED

TIME

Wave Designer Pro Off Line - stt.swf

File	Tools	Print		Help
					500
	STT Waveform Editor
					400
	Wire Feed Speed			90	Edit
	Peak Amps			200	300
	Peak Amps			200
Backgrd Amps				60	200
	Tailout Speed			.500	100
					100
	Pinch Start			140	0
					0	0	1	2	3	4	5	6	7	8	9	10
	Pinch Peak			.70
	Pinch Peak			.70


	Peak Time			1.0
				1.0


	dV dt detect			14.00
	dV dt detect			14.00



	Start		Explain		About
	Start		Explain		About


Status		read template2.map								Off Line		Stand by
Status										Off Line		Stand by
																27850057

WAVE DESIGNER

Image 56

Lincoln Electric IM649 manual STT Overview, Peak Time Peak Amps Tailout Speed

Contents

Wave Designer TM Page Table of Contents License Information Wave Designer Software License Agreement Iii License Information Introduction KEY TopicsProduct Overview User Responsibility Software Release Data Welding Equipment Requirements File Storage Locations Software InstallationSoftware Installation Procedure Equipment Interface Connections Welcome to Wave Designer Control Board DIP Switch Setting Upgrade Firmware EQUIPMENT/SOFTWARE Startup Software Operation Synergic Welding and Workpoints Working in Wave Designer Waveform Editor Window About the Procedure Waveform Editor Tool BAR File Menu Tools Menu Tools Print Menu Wave Designer Pro Waveform Editor Editing and Selecting Workpoints Menu Editing Workpoints WorkPoint Editor Selecting Workpoints Efforts Editing Variable Parameters Expand Graphic Wave Design Process Reference Paragraph see Appendix a Flashing PowerWave Custom Weld Files Downloading Wave Shapes Autosave Software Operation Introduction Using the ARC Scope WindowArcscope Other ARC Scope Options GSF File Arcscope Troubleshooting Overview Wave Designer Troubleshooting Procedure Troubleshooting Appendix a Pulse Wave Shaping PrinciplesAppendix Overview Gmaw Pulse Overview Figure A-1. Pulse Waveform Parameters Figure A-2. Weld Droplet Transfer NON-ADAPTIVE Mode Adaptive and NON-ADAPTIVE ModeAdaptive Mode Figure A-4. Process Flowchart Pulse Wave Design Process Selecting a Starting Wave Shape Customizing the Wave Shape Select a Workpoint Adapting Stickout Close the Adaptive Loop / Adjust the Peak Voltage Select an Adaptive Type Optional Adjust the Start Control Parameters Optional Start Control Adjust the Shorting Control Parameters Optional Shorting Control Adjust the End Condition Parameters Optional End Conditioning Go Figure / Make the Waveform Synergic Developing the 2nd Workpoint Primary Pulse Waveform Components Peak Current and Peak Time Frequency Background Current Secondary Waveform Parameters Application Exercise Fresa Start Control Pulse Waveform Editor 28750046 Pulse Wave Shaping Principles STT Wave Shaping Principles Appendix B STT Overview Peak Time Peak Amps Tailout Speed Figure B-2. Weld Droplet Transfer Surface Tension Transfer STT Surface Tension Transfer STT Wave Shaping Principles STT Wave Design Process Reference Paragraph see Appendix B Selecting a Starting Wave Shape Inch / min meter / min Go Figure Find the Optimal Arc Characteristics STT Start Control WorkPoint Editor Primary STT Waveform Components Peak Current Tailout Secondary STT Waveform Components Pinch StartPINCH/PEAK Peak Time STT Waveform Editor STT Waveform Editor Index Index-1 Index-2 Index-3 Voltage Index-4