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Metal powder bed additive manufacturing (AM) methods - Essay Example
Design & Technology
Pages 22 (5522 words)
This paper considers the metal powder bed additive manufacturing (AM) methods, mainly SLM and the EBM. This analysis will take into considerations the applications of each method, its advantages, and disadvantages. Eventually, a comparison between the two will be made in summary…
The paper tells that the method of selective laser sintering was carried out first by use of nylon combined with polymers when a need arose to have assistance of audio-visual prototypes and the fit-to-form research tests that were previously conducted. This process received considerable research and as a result, it was further expanded to incorporate metals and subsequently got into alloys that were used in the production of functional prototypes and also in the process of developing rapid tooling procedures. The past practices have seen the status of SLS reconsidered based on rapid prototyping approaches, SLM with the use of phosphorous during the binding mechanism, post-processing that involved parts that were laser-sintered, metals that have undergone direct selective laser sintering, rapid tooling application, and consideration of materials that have been put to use. Substantial research has thus been done in this area and many publications made. This could be attributed to the usefulness of the technology, its commercial viability, and the kind of broad application that it has found. The technology also has evolved to include the Electron Beam Melting, which is a technology that incorporates building parts laying layer-by-layer by use of metal powder through application of powerful beams of electron. Initially, powder-based AM manufacturing processes did construct various layers made up of plastic and metallic materials that dispersed powders on a given set substrate. ...
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