Terminology - Branson Emerson Ultraseal 20 Operating Manual

2.6

Terminology

Actuator: A mechanical device which houses the converter/booster/horn (stack)
assembly in a rigid mounting and is utilized to move the stack up or down. This allows for
precise control of welding pressure while delivering mechanical vibrations from the
ultrasonic stack to the work piece(s).
After Burst: A short duration (burst) of ultrasonic energy that begins after completion of
the AFTER BURST DELAY. (Also see AFTER BURST DELAY & AFTER BURST DURATION).
After Burst Delay: The amount of time, in seconds, between the completion of the
ultrasonic welding cycle and the start of the AFTER BURST. (Also see AFTER BURST &
AFTER BURST DURATION).
Amplitude: Amplitude is the peak-to-peak displacement of mechanical motion as
measured at the face of the horn tip. Amplitude is measured either in thousandths of an
inch or in microns (e.g. a standard 40 kHz Converter produces approximately 0.0004" or
10 microns of amplitude), Inches x 25.4 = microns. -- This is adjustable depending on
system frequency and application tooling.
Anti-Node: The anti-node is the area of the horn and booster that exhibits maximum
longitudinal displacement and where the internal dynamic forces are equal to zero. This
area is at the face and back surface on half-wave technology.
Anvil: A device specially designed to grip the lower component and hold it stationary
against the energy of vibration(s) which allows a weld to be created.
BBR: Nonvolatile random access memory (battery back-up random access memory).
Equipped with long life built in batteries, this memory area preserves weld parameters
and menu settings when the system is powered off. (Also known as BRAM.)
Booster: The central component of an ultrasonic stack assembly. A device which transfers
mechanical energy from the Converter to the ultrasonic horn. The booster will, depending
on design, increase, decrease, or maintain the specific amplitude as received from the
converter.
Calibration: The process of adjusting a device to a known position for purposes of
inspection and/or monitoring position, direction, speed, and/or velocity.
Consumable Spare Tooling: The tooling portion of the ultrasonic system that wears and
requires replacement due to production use. This includes but is not limited to ultrasonic
horns, replaceable tips, anvil, and positioning mask. A Spare Tooling Specification Sheet is
included within the Actuator Operation Manual to document the spare tooling for a specific
metal welding application.
Controller: The portion of the welding system that provides specific settings &
instruction(s) to the overall welding system.
Converter: A device which utilizes a PZT (lead-zirconate-titanate) electrostrictive element
to change high frequency electrical energy into high frequency mechanical energy.
Counter: A programmable device used to monitor system cycles and alert personnel
when specific conditions are met.
Data: Any representation(s) of instructions, characters, information, or analog quantities
to which meaning may be assigned.
Default: A chosen system setting or parameter in which the system does not require
external data input. In some cases the default value will be changed based upon
equipment use.
Dynamic Spring: An, adjustable, energy storage mechanism (shock absorber) which
allows for stack follow through upon engagement of application tooling with the work
pieces to be welded.
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