Hold Force; Weld Amplitude - Dukane VWA-4300 User Manual

Section 6 - Touch Screen Menus
Weld By – Choose from two weld modes: distance and
time.
Distance – This is the amount of added collapse (distance)
needed beyond the starting weld position. Welding con-
tinues at the specified pressure until the weld distance is
achieved, or until the weld time limit has been exceeded.
Time – Maintains friction across the work piece until the
weld time has elapsed
.
Both modes have a Hold Time that starts after the pri-
mary mode limit (distance or time) is reached.

Weld Amplitude

– This is the total amount of horizontal
vibrational movement of the tooling. This is a peak-to-peak
value. An amplitude of 1.3 mm, for example, means the
upper tooling fixture is driven 0.65 mm to the left, back to
center, then 0.65mm to the right and back to center for a
total cycle amplitude of 1.3 mm.
Program limits for amplitude:
Minimum – 0.020 inches / 0.5 mm
Maximum – 0.070 inches /1.778 mm
Segments – Use the Segment button next to Weld Am-
plitude to select between 1 and 5 segments. The example
in Figure 6-24 above shows that 5 segments have been
chosen, with a variety of distances. Segment 1 amplitude
can be programmed for (0.0) amplitude if two or more
segments are active.
Weld Distance – This sets the meltdown distance (when
welding by distance).
Weld Force – This is the amount of force being applied
across the work piece during the weld time.
– The amount of time the vibrating head
Weld Time
generates frictional heat across the work surface. This is
the sum of all segments that are active.

Hold Force

– The amount of force applied across the
work piece during the hold time.
– This is the amount of time the lift table main-
Hold Time
tains its clamping force on the work allowing the welded
surface to solidify. Hold time starts after the primary mode
limit (distance or time) is reached.
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Dukane Manual Part No. 403-592-00