By Branko D. Popovic, Branko M. Kolundzija
The authors current a comparatively basic, computer-oriented, normal and unified method of the research of steel antennas and scatterers (of electrically small and medium sizes), dependent mostly all alone unique paintings. the strategy seems to supply superiority over latest choices via circumventing many of the problems encountered via these tools. it may be of substantial significance to operating antenna engineers and researchers. creation; Modelling of geometry of metal antennas and scatterers; Approximation of present alongside generalised wires and over generalised quadrilaterals; remedy of excitation; Electromagnetic box of currents over generalised floor components; answer of equations for present distribution; Numerical examples illustrating the alternative of optimal parts of the strategy; Numerical examples illustrating the probabilities of the tactic; References; Appendices; Index.
Handbook of Antenna layout, Vol. 1 - ISBN 9780906048825 Propagation of Radiowaves, 2d variation - ISBN 9780852961025
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Extra info for Analysis of Metallic Antennas and Scatters
Grinding and/or EDM may be an alternative solution. 6 INSPECTION AND QUALIFICATION OF AM PARTS Inspection and quality control of AM parts is an area of special interest and is currently under development. This becomes particularly Additive Manufacturing Technology 37 critical as many of these parts are targeted toward aerospace and medical industries that demand higher qualification standards and material traceability. Wide acceptance of AM processes in industry depends very much on developing an affordable and rapid qualification and certification process for these parts.
A part of the qualification process involves recording of all machine parameters during the process. Most of the commercial systems from companies, such as EOS, SLM Solutions, ARCAM, and Concept Laser allow process data collection modules. , for the purpose of traceability. While the digital nature of these processes allows easy access to data collection, data storage and analysis of this very large amount of data poses a difficult challenge. This is currently being addressed by OEMs as well as various research institutes.
Repair/ remanufacture Possible only in limited applications (requires horizontal plane to begin remanufacturing) Not possible Possible (capable of adding metal on 3D surfaces under 5 1 1-axis configuration making repair solutions attractive) Feature/metal addition on existing parts Not possible Not possible Possible. 1,5À10 Fig. 1 shows a comparison of PBF technologies against DED technologies in terms of deposition rate and surface roughness. The layer thickness has been used as a measure of roughness here as this determines the roughness of the vertical walls of the structure being built.