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- Manufacturing Technology Abstracts
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Manufacturing Technology Today, Vol 21, No 5-6 (2022), Pagination: 31-42Abstract
112648 Development of a processing route for Ti-6Al-4V forgings based on preforms made by selective laser melting Bambach, Markus; Sizova, Irina; Emdadi, Aliakbar [J of Manufacturing Processes, v 37, Jan 2019, Starting Page 150, Pages 9] Additive manufacturing (AM) provides an alternative for small scale production of various metal components. However, due to the inherent porosity, the performance of AM-parts will not reach the level of forged material unless further processes such as hot-isostatic pressing are used. Alternatively, additive manufacturing could be combined with forging operations to novel process chains, offering the possibility to reduce the number of forging steps and to create near netshape forgings with desired local properties. In the present study, the design of a novel processing route using additively manufactured preforms for hot working is considered. The microstructure evolution of AM pre-forms is investigated during hot working and heat treatment and compared to conventional wrought material with a lamellar microstructure typically used for forgings. The results show that pre-forms made from Ti6Al-4 V by SLM show a good hot workability due to the martensitic microstructure. Void closure is observed to occur in hot compression under compressive stresses. As a consequence, the proposed processing route appears to allow for similar final microstructures and hence properties as conventional forging process chains, but may reduce the number of forging steps to a single one and hence reduce the number of dies as well as the die loads.Keywords
Additive Manufacturing Artficial Intelligence & Robotics Casting & Foundry Practice Diamond Turning Cnc Machining Cnc Machining Forming Friction Stir WeldingReferences
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- Patent Abstracts on Additive Manufacturing
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Manufacturing Technology Today, Vol 21, No 7-8 (2022), Pagination: 34-42Abstract
US2022291661 (A1) 15-Sep-22 Additive Manufacturing Simulations Inventor: OTT ERIC ALLEN; STROESSNER JOHANNES; ACOSTA MANUEL; APPEL PETER; SUN HONGQING Applicant: GEN ELECTRIC Methods of simulating additively manufacturing an object may include generating a simulated additively manufactured object based at least in part on a plurality of approximate consolidation domains that respectively correspond to a plurality of consolidation tracks determined from one or more digital representations of an additively manufactured object, and determining a predictive inference with respect to one or more material properties of the object to be additively manufactured based at least in part on the simulated additively manufactured object. Methods may include generating, for an object to be additively manufactured, a CAD file and/or a build file based at least in part on a simulated additively manufactured object and/or based at least in part on one or more predictive inferences with respect to one or more material properties of the object to be additively manufactured. An object may be additively manufactured based at least in part on a simulated additively manufactured object and/or a CAD file and/or the build file corresponding thereto.Keywords
Additive Manufacturing Simulations ,An Additive Manufacturing DeviceReferences
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