A.G. Mamalis

Abstract:

In manufacturing technology six main elements may be identified, with the central one being the enforced deformation to the material, i.e. the processing itself, brought about under consideration of the interface between tool and work piece, introducing interdisciplinary features for lubrication and friction, tool materials properties and the surface integrity of the component. The as-received material structure is seriously altered through the deformation processing, therefore, materials testing and quality control before and after processing are predominantly the areas of interest to the materials scientist. The performance of the machine tools together with the tool design are very important, whilst, in today's computer age, the techno-economic aspects, like the notion of manufacturing systems regarding automation, modeling and simulation, rapid prototyping, process planning and computer integrated manufacturing, energy conservation and recycling as well as environmental aspects are important in manufacturing engineering. The quality of manufactured parts is mainly determined by their dimensional and shape accuracy, the surface integrity, and the functional properties of the products. The development of manufacture engineering is related to the tendency to miniaturization and is accompanied by the continuous increasing of the accuracy of the manufactured parts. Note that, the two main trends towards a miniaturization of products are the ultra precision and the nanotechnology processing. The former is carried out by machine tools with very high accuracy, while the latter is defined as the fabrication of devices with atomic or molecular scale precision by employing new advanced energy beam processes that allow for atom manipulation. Therefore, the design and manufacture of the nanostructured materials (carbon nanotubes and nanoparticles), having every atom or molecule in a designated location and exhibiting novel and significantly improved optical, chemical, mechanical and electrical properties, are made possible. Recent trends and developments in advanced manufacturing from macro- to nanoscale in the important engineering involve topics from industrial, research and academic point of view. Some of these topics are: nanotechnology/ultra precision engineering and advanced materials under low/high speed impact and shock loading, with industrial applications to net-shape manufacturing, bioengineering, energy and transport. As an outcome of the very extensive work over 40 years on these fields performed by the author and his research international team, these topics are presented and discussed in the present Keynote Lecture of the SIPS 2017 3rd International Symposium on New and Advanced Materials and Technologies for Energy, Environment and Sustainable Development.