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Appendix B
B.1 APPENDIX OVERVIEW
This appendix provides a series of discussions on STT wave shaping principles and the
development of custom STT waveforms. The contents of this appendix are arranged as follows:
Paragraph No./Title
B.2
STT Overview
B.3
STT (Surface Tension Transfer)
B.4
STT Wave Design Process
B.5
Primary STT Waveform
Components
B.6
Secondary STT Waveform
Components
B.7
Application Exercise
STT WAVE SHAPING PRINCIPLES
WAVE DESIGNER
Contents Description
How the STT waveform transfers weld droplets to the
weld surface
How WFS and wave shape parameters effect welding
Flowchart and step by step descriptions of the STT
wave design process
How peak current, background current, and tailout
speed effect weld droplet transfer
How pinch start, pinch/peak, peak time, and dV/dt
detect effect weld droplet transfer
Sample development of an STT welding program using
Wave Designer.
B-1
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