1995 / Solid Freeform Fabrication Proceedings
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Author T. Srinivasa Rao (a), D.L. Bourell (b), H. L. Marcus (c), (a) Regional Engineering College, Trichy, India, (b) The University of Texas at Austin, (c) The University of Connecticut
Source Solid Freeform Fabrication Proceedings, 1995, pp 374-380
Abstract Production of structurally sound parts by any rapid prototype technique is essential, because fully functional features are necessary where application testing is required. In the present work, a powder blend of AL203/AL (3:1 by weight) was mixed with ammonium dihydrogen phosphate and subjected to selective laser sintering (SLS) using a C02 laser. An attempt has been made to increase the powder bed density by introducing vibration to the part cylinder. These SLS processed preforms were then subjected to a secondary heat treatment in a hydrogen atmosphere and to hot isostatic pressing. Densification behavior of these AL203/AL composite preforms is discussed. (Auth abstract) [References: 8]
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