mode, and the three-digit
numerical displays OFF. Peak
power limits are the only weld
parameters in effect during this
mode.
Converter:
An electromechanical
transducer which converts
electrical energy to mechanical
energy.
Data:
Any representations, such
as facts, concepts, instructions,
characters or analog quantities, to
which meaning might be
assigned.
Data Communications:
The
transmission of information or
data between two or more
stations.
Data Set:
See Modem.
Default:
A value, or status chosen
for a parameter or option, by the
system.
Degating:
Removing a molded
part from its runner system.
Echo:
Occurs when a receiving
device sends back to the host
system a duplicate of all
characters received.
Energy Director:
A
triangular-shaped projection of
plastic material which
concentrates the ultrasonic
energy at the joint interface of a
plastic part.
Energy Mode:
Welding continues
until a predetermined amount of
energy (expressed in kjoules) has
been applied to the part(s) being
welded.
Far Field Welding:
Welding taking
place at a distance greater than
1/4 inch (6mm) from the point of
horn contact with the part.
Fixture:
A device for holding a part
in position for assembly.
Flash:
Material displaced from the
joint area.
Forming:
Reshaping a section of
thermoplastic.
Frequency:
The number of
complete oscillations per second,
expressed in Hertz (Hz) or
kilohertz (1KHz = 1000Hz),
produced by the
converter/booster/horn; usually
20kHz or 40kHz for plastics
welding.
Gain:
The ratio of output to input
amplitude of a horn or booster.
Handshaking:
The procedure
(signal exchange) when a
connection is established between
two electronic devices. A common
example is the signal exchange
between a terminal and a MODEM.
These signals (hardware and
software) are used to control the
flow of data (start/stop) between
devices.
Glossary
D-2
900IW+
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