Scientific substantiation and practical confirmation of possibility, expediency and efficiency of application of the ultrasonic superficial plastic deformation in zones of welded connections after performance of welding works is given. For this purpose a mathematical model of process of superficial plastic deformation is represent, as the hypercycle of loading consisting of elementary cycles – ...

In some austenitic stainless steel welds grains orientations cause deviation and splitting of the ultrasonic beam. It is especially true in the case of multipass welds when the remelting process after each pass causes complex solidification process. With the new model MINA (Modelling anisotropy from Notebook of Arc welding) we show that we are able to predict thoroughly grains orientations. Thi...

Today’s environmental concerns are pressuring industries to substitute paper-based materials in place of plastics many sectors including packaging. However, assembling papers and paperboards using environmentally friendly solutions remains a technological challenge. In this context, ultrasonic (US) welding is an alternative adhesives. work, the potential US assemble folding boxboards was invest...

Finite element method (FEM) has been employed extensively for vibration modal analysis of piezoelectric transducers and devices. In recent years, there has been a growing interest in the simulation and analysis of piezoelectric transducers by using equivalent electrical circuit models. This paper has been devoted to such approach for two designed and fabricated ultrasonic sandwich transducers h...