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The technology of ultrasonic dimensional processing of brittle and hard materials, particularly disc manufacturing of various diameter made of cermet plates of dissimilar thickness, is considered.
The article is devoted to the discussion of the results of theoretical investigations of joining of polymeric materials by ultrasonic welding seam made by the ring-shaped working tool. According to results of theoretical studies optimal parameters are established according to the energy influence depending on the diameter and the width of formed weld. The theoretical results are allowed to propose...
The dependences of ultrasonic energy produced in materials from basic parameters of press and continuous ultrasonic welding are presented in article. There is possibility to provide optimal modes adjusting of energetic parameters of ultrasonic welder equipment and to achieve high efficiency of solving different technological tasks of wares welding.
The article is devoted to the design of piezoelectric vibrating system providing transformation of longitudinal vibrations of the transducer into radial vibrations of welding instrument made in the form of diverging cone, on the external surface of which at the part of larger diameter cylindrical working surface is made. The presence of cylindrical working surface at the provision of rotation of vibrating...
The paper is devoted to the design of formation of continuous seam by the ultrasonic welding. The base of the device is developed vibrating system consisting of the piezoelectric transducer of longitudinal ultrasonic vibrations with the working tool, which provides the transformation of longitudinal vibrations into radial ones. Designed welder helps to achieve tight joint of thermoplastic materials...
In the article the process of transformation of longitudinal vibrations into radial ones was investigated; different designs of transducers (symmetric, partially symmetric and asymmetric) intended for continuous welding of thermoplastic materials were analyzed. Calculations based on mathematical modelling were presented; the design of the welding tool designed for continuous welding of thermoplastic...
The article is devoted to theoretical investigation of continuous ultrasonic welding of thin polymer films. Theoretical studies of energy release of ultrasonic vibrations in the welding zone have allowed ascertaining that friction energy during continuous welding of films with small thickness (less than 0.5 mm) has the main influence on performance of continuous welding.
The results obtained from the theoretical and experimental investigations of ultrasonic surface treatment of metals are presented in this article. The theoretical calculations of optimum parameters of ultrasonic exposure required to provide necessary roughness are showed. The results of the experimental studies are presented for the processes of internal surface treatment of samples made of aluminium.
The article presents results of theoretical investigations of formation of continuous joint in contact area of flat surface of the radiator with rotating surface of the pressure roller. The recommendation on the choice of pressure roller parameters and optimal amplitude of ultrasonic vibrations and broach speed for materials different in properties and thickness were developed on the basis of analysis...
The article considers the model of formation of weld seam of polymers by ultrasonic welding with ring-shaped working tool. Dependences of optimum amplitude of ultrasonic influence were ascertained according to diameter and width of the joint on the basis of the theoretical analysis of the process. The results of theoretical studies allow proposing the algorithm for optimum control of ultrasonic welding...
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