1.AMPLITUDE
Viewed by most as the most critical element of ultrasonic welding, amplitude refers to the downward stroke of the convertor, booster, and horn. When it comes to ultrasonic welding different applications require different amounts of amplitude in order to get a desired result. For example, ultrasonic inserting requires less amplitude then ultrasonic staking. Insufficient or to much amplitude can cause a application to fail.
2.TIME
Time refers to weld time and hold time, and usually is measured in tenths of seconds. Weld time is the amount of time that amplitude and pressure are applied by the horn to the thermoplastic application. After ultrasonics have been applied to the application, the horn continues to apply pressure to the parts to assure that the melted plastic has solidified. The amount of time that this pressure is applied is refered to as the hold time. Hold times are usually half the weld time.
3.PRESSURE
The actual force being applied to the thermoplastic parts or metal inserts by the converter, booster, and horn.
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