Ultrasound welding is done by applying a normal variable load on pieces to be welded and creating vibration on one part as opposed to the other using a resonator stack made up of the transducer and the booster at the extremity of which the sonotrode is attached.
The assembly of thermoplastic materials using vibration welding occurs when two surfaces that come into contact are melted. The increase in temperature at the welding point needed for the melting process is obtained by rubbing one of the two pieces to be welded.
Welding of thermoplastic materials using the spin welding technology occurs when two surfaces that come into contact are melted. The increase in temperature needed for the melting process is obtained by rubbing the two pieces to be welded.
The principle of hot plate welders is simple and intuitive. Thermoplastic materials, by definition, are sensitive to heat and the materials melt by direct contact with a hot plate with electronic temperature control.