What Amplitude is needed to weld my plastic components?

What exactly is “Amplitude” and why is it important?  Amplitude is the peak-to-peak movement, or expansion/contraction, of an ultrasonic tool stack.  Each component can multiply the amplitude that comes from the transducer, the amount of increase or decrease is called “Gain”.  The total gain of the stack components determines the final amplitude at the working… Continue Reading What Amplitude is needed to weld my plastic components?

Understanding Ultrasonic Stack

It is essential that the mating faces between an ultrasonic transducer/booster and a booster/horn be flat and parallel. If any air gaps remain, there will be a resultant loss in power output and efficiency. Coupling may be so poor that it might prevent the starting of an ultrasonic stack. The condition of excessive crowning, or… Continue Reading Understanding Ultrasonic Stack

How does your Ultrasonic Probe/Stack work?

Ultrasonic Probe Plastic welding is the most common application of ultrasonic assembly. To perform ultrasonic plastic welding, a vibrating tip is brought into contact with one of the work pieces as shown in Figure 1–1. Pressure is applied and ultrasonic energy travels through the material, increasing the kinetic energy (or heat) at the contact point… Continue Reading How does your Ultrasonic Probe/Stack work?