• 2020-10-28

  Ultrasonic welding has many advantages over traditional methods. For one, welding occurs at low temperatures relative to other methods. So, the manufacturer does not need to expend vast amounts of fuel or other energy to reach high temperatures. This makes the process cheaper. It's also faster and safer.   The process occurs in fractions of a second to seconds. So, it can be done more ...

• 2020-10-28

  Look at a pair of athletic shoes. While traditional shoes may be made of a single material such as canvas or suede leather, many athletic shoes have several materials such as lightweight plastic polymers, suede or synthetic suede, and mesh combined. These composite materials make the shoes light, flexible, durable and breathable. For example, one style of New Balance athletic shoe has an up...

• 2020-10-27

  The basic process of ultrasonic welding can be described by the following steps:   The parts to be welded are placed in the anvil or fixture. The horn contacts the parts to be welded. Pressure is applied to keep the horn in contact with the welded materials and to hold them together. The horn delivers ultrasonic vibrations to heat up the materials. The vibrations move less than a milli...

• 2020-10-27

  Rub your hands together rapidly. Notice anything? They warmed up, right? If you take a hammer and pound a metal surface rapidly and repeatedly, you will find that the place where the hammer strikes the metal warms up, too. In both these examples, the heat is due to friction. Now imagine rubbing your hands or pounding that hammer thousands of times per second. The frictional heat generated c...

• 2020-10-27

  General description The ultrasonic welding technology for plastics is considered part of the melt welding processes. The process is based on a conversion of friction and vibration energy into heat. Using a welding tool called a sonotrode, the high-frequency vibrations generated by the ultrasonic system, in combination with pressure, are transferred to the parts to be joined, which leads to ...

• 2020-10-27

  Ultrasonic welding is a widely recognized and accepted process for joining thermoplastic materials. It offers many advantages, including process reliability and repeatability, lower energy usage than other joining techniques, material savings (because there is no need for consumables, such as glue or mechanical fasteners), and labor savings.   But as with any process, there are situati...

• 2020-10-23

  The phenomenon referred to as ultrasonic atomization has its roots in late 19th century acoustical physics, notably in the works of the ubiquitous Lord Kelvin.   Simply stated, when a liquid film is placed on a smooth surface that is set into vibrating motion such that the direction of vibration is perpendicular to the surface, the liquid absorbs some of the vibrational energy, which i...

• 2020-10-23

  The ultrasonic power supply converts 50/60 Hz voltage to high frequency electrical energy. This electrical energy is transmitted to a piezoelectric transducer with the converter, where it is changed to mechanical vibrations. The ultrasonic vibrations are intensified by the probe and focused at the tip where the atomization takes place.   Every ultrasonic nozzle operates at a specific r...