Lincoln Electric WAVE DESIGNER, Руководство оператора

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2. Find the Optimal Arc Characteristics
Use the following weld trials and adjustment sequence to tune the selected waveform for your
weld application at the designated workpoint (wire feed speed). Weld trials and adjustments are
more easily performed with one person welding while you adjust the waveform parameters at the
computer terminal.
a. Set the Invertec Trim control for a readout of 1.00. This will ensure that the wave shape is
designed at the midrange of the trim adjustment capability. The welding machine’s trim
control allows the welder to adjust the arc length between 0.5 to 1.5 (50% to 150%) times
the established arc length adjustment factor.
b. Maintain a constant stickout. The stickout should be equal to the expected average of the
welding application. We recommend about 5/8 in. to 3/4 in. (16 mm to 19 mm) electrical
stickout.
c. While welding a trial weld bead, adjust the waveform variables (peak current, background
current, tailout, etc.) to achieve a desired droplet transfer with a fixed 5/8 in. to 3/4 in.
(16 mm to 19 mm) stickout at the selected wire feed speed. Refer to paragraph B.5.
d. With the stickout at a fixed setting, make trail welds during each adjustment so you can
directly observe the effect of the adjustments in the arc and resulting weld. Adjust the
variables as needed to achieve the desired weld transfer at the fixed stickout.
NOTE: Wire feed speed controls the deposition rate. Peak current controls the arc length.
Background current controls the bead contour, and tailout adjusts power (heat) in the
arc. For optimum spatter control, the arc should be focused on the weld puddle.
Appendix B B-9
STT WAVE SHAPING PRINCIPLES
WAVE DESIGNER
27850059
AMPERES
PINCH START
dV/dt CALCULATE
PEAK TIME
PEAK AMPS
TAILOUT
SPEED
BACKGROUND AMPS
TIME