18 DCM00003 REV. 07
Mode: The method of operating the system (also see WELDING MODE).
Node: The node is the area of the horn, (and booster), that exhibits no longitudinal
displacement and where the internal dynamic forces are at the maximum. This area is in
the center location on half-wave technology.
Parameter(s): Programmable units used to control and or monitor the ultrasonic
process. -- Include but not limited to ENERGY, FORCE, PRESSURE, AMPLITUDE.
Parts Counter: A programmable device used to monitor system cycles and alert
personnel when specific conditions are met. (See: Counters).
Peak Power: Peak power is the maximum amount of power in watts that was required to
keep the ultrasonic stack in motion during the weld cycle.
Power: Power, measured in watts, is a function of pressure and amplitude. The amount of
power, (watts) required to keep the ultrasonic stack in motion is monitored and used to
develop a power curve. This power curve is used to calculate the amount of energy
delivered/ dissipated, (Watts = Joules / Time). The power as displayed on the control box
is peak power.
Power Supply (Ultrasonic): An electronic device that converts 50/60 cycle electrical
current into 40 kHz, (40,000) or 20 kHz, (20,000) cycles per second high frequency
electrical energy.
Power Supply Overload (Ultrasonic): The point or limit at which the amount of power
in watts, required to keep the ultrasonic stack in motion, exceeds the available power from
the power supply. The system will go into an overload condition in order to prevent system
damage.
Preheight: A pre-sonic inspection display, in millimeters (mm), as registered by a linear
encoder prior to initiation of the ultrasonic welding cycle. -- Programmable, in millimeters,
with Upper Control Limit & Lower Control Limit.
Presets: System memory available for storage and retrieval of welding parameters.
Pressure: The amount of mechanical pressure supplied to the ultrasonic stack assembly
while delivering ultrasonic energy to the components.
Quality Widows & Limits: Programmable values used by the system to compare actual
process data. Actual process data must be within limits or an alarm condition will exist.
Setup Mode: The condition the control box must be in prior to adjusting parameters,
quality windows, and/or any others settings except those contained within the Command
Mode.
Squeeze Time: The amount of time after the ultrasonic tooling engages the
component(s) and before delivery of ultrasonic energy. -- Adjustable from 0 - 0.5 seconds
Stress: Stress is the amount of dynamic force per cross sectional area.
Time: Time is the duration of the ultrasonic, mechanical, activity. Time is a component
used to calculate the amount of ultrasonic energy delivered during a weld cycle, (Time =
Joules / Watts).
Tip: Device specially designed to grip the upper component, to be welded, and to direct
the ultrasonic energy into the work piece, (Also: Horn Tip & Replaceable Horn Tip).
Tip Nut: Device specially designed to securely clamp a replaceable tip onto the horn.
Trigger Force: (See: Force).
Tuning: Adjusting to optimize power supply performance according to resonance
frequency, especially with regard to the horn and converter.
Velocity: The rate of motion at a specific time [velocity = distance / time] (also referred
to as speed).
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