Ultrasonic Technologies

high-frequency sound (ultrasound) causes rapid vibrations within the materials to be welded. In manycases, the phenomenon of ultrasound is also appliedin technological processes of the machining of materials. The vibrations cause the materials to rub against each other and the friction raises the temperature at the surfaces in contact.

Plastic

Equipment

Welding

plastic

During the welding process, the materials to be welded are placed between a fixed shaped nest and a sonotrode which is connected to a transducer which produces a low amplitude acoustic vibration. The acoustic energy creates friction, produces heat, and then the parts are welded together in less than a few second making it one of the fastest welding methods in use today.

Ultrasonic Welding Equipment

During the welding process, the materials to be welded are placed between a fixed shaped nest and a sonotrode which is connected to a transducer which produces a low amplitude acoustic vibration. The acoustic energy creates friction, produces heat, and then the parts are welded together in less than a few second making it one of the fastest welding methods in use today.

  • A power supply converts low-frequency electricity (50-60 Hz) to high-frequency electricity (20kHz, 40 kHz).
  • A transducer or converter changes the high-frequency electricity into high-frequency sound (ultrasound) and booster makes the ultrasound vibrations bigger.
  • A horn or sonotrode focuses the ultrasound vibrations and delivers them to the materials to be welded.
  • A Pressure factor (usually air pressure supplied by a pneumatic piston) to hold the materials together during welding.
  • a fixed shaped nest and hold it NOT to follow vibration movement

    • Ultrasonic Rivet Welding

    The main difference between ultrasonic welding and ultrasonic riveting is that a melt deformation occurs during riveting and only one of the two joining elements is plasticized.

    Inside

    Equipment

    Inside

    Equipment

    After

    plastic

    a melt deformation occurs during riveting and only one of the two joining elements is plasticized.     This allows any thermoplastic materials to be connected with one another without polymer compatibility or also with non-plastics. The result is rivet connections with almost no gaps or play, as the cold rivet tool cools the melted rivet head under pressure.

    Ultrasonic Cutting

    The ultrasonic cutter vibrates microscopic, it cannot be seen. The movement repeats 40,000 times per second (40 kHz). Because of this movement, the ultrasonic cutter can easily cut resin, rubber, nonwoven cloths, film and composite materials.

    Blade

    Blade

    Remaning Cut

    plastic

    Ultrasonic Horn

    The main element of equipments that use the effects of ultrasound for machining technology is the ultrasonic horn --- Sonotrode. The amplitude of the resulting ultrasonic vibrations are inadequate. It demands the amplifying wave guided elements of the ultrasonic. The machining equipments are connected to the electromechanical transducer enabling to achieve the amplitude.

    Our Horn Design


    Ultrasonic horn connect the longitudinal ultrasonic waves from the transducer end to end, it amplifies the input amplitude of vibrations so that at the output end the amplitude is sufficiently amount to perform of necessary machining process.


    The main function of the sonotrode is to amplify the amplitude of ultrasonic vibrations, it required to the effective machining.


    Incorrectly manufactured sonotrode will cause machining problem and can lead to the destruction of the vibration system, considerable damage to the generator.

    Our Ultrasonic Sonotrode Design

    The sonotrode serves also as an element transmitting the vibration energy from the transducer towards to the tool interacting with workpiece. It does so by being in resonance state with the transducer. The design and manufacture of the sonotrode require special attention.

    The most important aspect of sonotrode design is that resonant frequency and the determination of the correct sonotrode resonant wave length.
    cylindrical, tapered, exponential, stepped