Ultrasonic Additive Manufacturing: An Overview

Abstract

The University of Arkansas at Monticello employs high-frequency ultrasonic vibrations as a means of fusing metallic foils or layers together, thereby generating complex three-dimensional configurations. Unmanned Aerial Vehicles (UAVs) exhibit significant potential in various domains. However, there exist certain research lacunae that require attention to enhance their functionalities and surmount their constraints. The present investigation undertakes a comprehensive analysis of the existing research lacunae in Ultrasonic Additive Manufacturing and suggests potential remedies. Research requirements include the optimisation of processes, selection of appropriate materials, assessment of compatibility, attainment of dimensional accuracy, achievement of surface polish, and enhancement of mechanical properties for products produced through UAM. The University of Applied Management (UAM) exhibits a dearth of research pertaining to process optimisation. Comprehend the impact of ultrasonic frequency, amplitude, pressure, and dwell duration on the quality and performance of components. The selection of materials and their compatibility play a crucial role in ensuring effective bonding and avoiding interfacial flaws or delamination. One area of research that requires attention is the production of items by UAM with high dimensional precision and surface polish. Geometric inaccuracies and suboptimal surface finishes can be attributed to the application of ultrasonic vibrations. The implementation of tool path planning, vibration dampening, and surface post-processing techniques has the potential to mitigate the aforementioned issues. The mechanical properties of components produced by UAM must be thoroughly characterised and optimised. Comprehending the impact of bonding interface, grain structure, and residual stresses on mechanical performance is of paramount importance. Based on this data, it is possible to create and produce UAM components that possess tailored mechanical properties. There exist various approaches that can effectively tackle the aforementioned research deficiencies. The utilisation of experimental research, process modelling, and simulation techniques facilitates the optimisation of process parameters, comprehension of material behaviour, and prediction of component quality. The microstructure and mechanical characteristics of UAM components can be analysed through the use of microscopy, X-ray diffraction, and mechanical testing. The implementation of novel materials, surface treatments, and post-processing techniques has the potential to enhance the dimensional accuracy and surface finish of components produced through Ultrasonic Additive Manufacturing (UAM). The identification of research gaps could potentially facilitate the adoption of Ultrasonic Additive Manufacturing as a feasible additive manufacturing technique in the aerospace, automotive, and medical industries. The proposed research and development endeavours at UAM aim to enhance process control, optimise material utilisation, and improve component quality.