Hybrid structures are important for the automotive and aeronautical industry as they have potential to reduce vehicle or aircraft weight improve fuel efficiency. Continuous ultrasonic metal welding is a promising technique hydraulic applications in realise tubular metal/fiber reinforced polymer (FRP) hybrids. Fluid proof connections between dissimilar components can be joined by continuous seam...

In recent years Gas Metal Arc Welding (GMAW) technology has expanded its functionalities in various areas which have further motivated usage several emerging manufacturing industries. There are issues and challenges associated with this technology, especially dissimilar metal welding (DMW). One of the predominant is selecting appropriate parameters influence efficiency technology. To explore mo...

Abstract The iron terminals are mostly used in the small ultrasonic transducers which connected to circuit board by direct or indirect welding method. Although method is considered be firm and reliable, transducer whole system easy damaged when replaced maintained. Moreover, of oxidized. miniaturized with electroplated copper innovatively designed enhance oxidation resistance its terminals. The...

The application bottleneck of laser welding is being gradually highlighted due to a high prevalence porosity. Although technology has been well applied in fields such as vehicle body manufacturing, the suppression weld porosity stainless steel containers pharmaceutical industry still challenging. bottom was investigated by applying ultrasonic vibration, changing positions and optimizing shieldi...

This chapter is dedicated to ultrasonic piezoelectric ceramic power transducers. These elements are now the most popular source of high power ultrasound and is used in many industrial applications. High power ultrasonic waves are generally used in such industrial processes as welding, acceleration of chemical reactions, scavenging in gas medium, echo sounding and underwater communication (sonar...

Abstract Inconel 690 has been extensively used in steam generator tubing materials for pressurized water reactors. In order to improve the weld quality of 690, ultrasonic-assisted pulsed tungsten inert gas (TIG) welding is studied. this study, macrostructure, microstructure, and mechanical properties weldments welded by TIG with without ultrasonic assistance were investigated. The microstructur...

For ultrasonic welding of carbon fiber-reinforced plastics (CFRPs), a sharp shaped resin called the energy director (ED), is usually inserted between them. In this study, finite element analyses for CFRPs were performed using two-dimensional model. The effects shape ED on temperature increase, deformation history, and dissipated behaviors are discussed. Flat triangular shapes considered. From r...

The welding of foils, textiles, and textile composites made thermoplastic polymer materials using machines with an ultrasonic rotary sonotrode is a high-tech technique. Many authors have dealt only few parameters in earlier papers, mainly mentioning the speed, i.e., time, power generator. In this paper, acoustic model defined. Based on model, group 44 different important for has been summarised...