Figure 6-15
iQ Explorer II
, Process Settings > Weld > Weld Motion Control, Weld Profile, Speed
Step 11 - Specify Weld Motion
Immediately after Trigger (or Melt Detect) occurs, the
press changes the speed of motion to the Weld Speed.
Enter the selections described below and shown in Figure
6-15.
Weld Profile - Select Constant.
Speed - Enter desired weld speed. Typical weld speeds
are in the range 0.010-0.060 in/s (0.25-1.5 mm/s). For
users experienced with pneumatic welders, one method
to estimate the weld speed is to divide the desired
weld collapse distance by the weld time that would
be expected on a pneumatic welder - the result is the
average speed.
Step 10 - Enable Melt Detect
The value of the After Force Drops By parameter is used
to designate how much the force is to decrease relative to
the Trigger Force before the horn will resume the pro-
grammed weld motion. For example, for a Trigger Force
of 40 lbs. and a value of 5% for After Force Drops By,
the press would stop once the Trigger Force is achieved,
and resume motion after the force drops by 2 lbs. (5%
of 40 lbs.) below the Trigger Force, or 38 lbs. A starting
value of After Force Drops By is typically in the 5-10%
range. The benefit of this option is significantly less
stress on the
parts and stronger weld bonds.
See
Figure 6-14.
This patented feature is found only on Dukane's servo
press systems. If the feature is selected, the system will
stop motion once the desired Trigger Force is achieved.
The ultrasound will be initiated at this moment. Once
the programmed force drop is detected,
which indicates
material softening or melting has begun
,
the motion will
continue. This is the basis for Dukane's exclusive Melt-
Match™ technology.
Figure 6-14
iQ Explorer II
, Process Settings > Weld > Enable Melt Detect
5
Page 105
Dukane Manual Part No. 403-587-00
Section 6 - Optional Control
