Improvement of ultrasonic welding and development of devices for its implementation

Abstract

The paper introduces the results of investigation of processes occurring at introduction of ultrasonic oscillations into weld items considering the features of implementing press cold and continuous welding when forming spot, line, circular and extended continuous welds. The identified dependences of energy required for ultrasonic welding on properties of weld materials, welding speed (speed of weld materials tracking), forms of pressure roller, frictions when welding thin films made it possible to define optimal modes of ultrasonic exposure for welding rivet, line and circular weld of different forms and welds of complex closed loop. The developed welding units allow supporting quality of welding items of polymeric thermoplastic materials.

Keywords

• ultrasonic welding
• thermoplastic materials
• technology
• devices