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THEORY OF OPERATION
FIGURE E.8 – STT WAVEFORMS
Wave Control +10.0
Wave Control 0.00
Wave Control
Current
Time
STT Wave control characteristics
Trim 1.50
Current
Trim 1.00
Time
Trim 0.50
STT Trim control characteristics
GENERAL DESCRIPTION OF
THE STT (SURFACE TENSION
TRANSFER) PROCESS
The STT process cannot be classified as either a con- stant current (CC) or a constant voltage (CV) applica- tion. The STT function produces current of a desired waveform to reduce spatter and fumes. The STT process is optimized for
