Technological features of ultrasonic cutting with simultaneous welding of the plastic products

The paper considers a method of ultrasonic plastics cutting. It determines the simplest scheme in cutting plastics making it possible to obtain satisfactory productivity and cutting quality indicators with simultaneous plastics welding. Influence was established of the ultrasonic cutting mode main parameters on the process productivity and on the quality of cut and simultaneously welded plastics that meet the technical conditions. Based on the principle of dosing the introduced ultrasonic mechanical energy, as well as in order to reduce wear on the waveguide tool cutting edge, two options for press cutting with simultaneous welding of the polymer materials were proposed. The conducted analysis of methods in cutting the polymer materials showed advantages and feasibility of the ultrasonic cutting with simultaneous welding of the plastic products over the other cutting methods. When selecting the optimal cutting mode with simultaneous welding, the method of analyzing thermal deformation cycles was introduced. It was shown that one or another stage of deformation clearly correlates with structural alterations and temperature in the plastics cutting and welding zone. Possibility of manufacturing a filter set of a die using ultrasonic cutting with simultaneous welding was established.

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