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Article
Publication date: 1 September 1998

Suman Das, Joseph J. Beama, Martin Wohlert and David L. Bourell

This paper focuses on recent advances in direct freeform fabrication of high performance components via selective laser sintering (SLS). The application, known as SLS/HIP…

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Abstract

This paper focuses on recent advances in direct freeform fabrication of high performance components via selective laser sintering (SLS). The application, known as SLS/HIP, is a low cost manufacturing technique that combines the strengths of selective laser sintering and hot isostatic pressing (HIP) to rapidly produce low volume or “one of a kind” high performance metal components. Direct selective laser sintering is a rapid manufacturing technique that can produce high density metal parts of complex geometry with an integral, gas impermeable skin. These parts can then be directly post‐processed by containerless HIP. The advantages of in situ encapsulation include elimination of a secondary container material and associated container‐powder interaction, reduced pre‐processing time, a short HIP cycle and reduction in post‐processing steps compared to HIP of canned parts. SLS/HIP is currently being developed under a DARPA/ONR program for INCONEL® 625 superalloy and Ti‐6Al‐4V, the demonstration components being the F‐14 turbine engine vane and the AIM‐9 missile guidance section housing base respectively.

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Rapid Prototyping Journal, vol. 4 no. 3
Type: Research Article
ISSN: 1355-2546

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Article
Publication date: 1 April 1949

It has often been said that a great part of the strength of Aslib lies in the fact that it brings together those whose experience has been gained in many widely differing…

Abstract

It has often been said that a great part of the strength of Aslib lies in the fact that it brings together those whose experience has been gained in many widely differing fields but who have a common interest in the means by which information may be collected and disseminated to the greatest advantage. Lists of its members have, therefore, a more than ordinary value since they present, in miniature, a cross‐section of institutions and individuals who share this special interest.

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Aslib Proceedings, vol. 1 no. 4
Type: Research Article
ISSN: 0001-253X

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Article
Publication date: 1 January 1954

Aarhus Kommunes Biblioteker (Teknisk Bibliotek), Ingerslevs Plads 7, Aarhus, Denmark. Representative: V. NEDERGAARD PEDERSEN (Librarian).

Abstract

Aarhus Kommunes Biblioteker (Teknisk Bibliotek), Ingerslevs Plads 7, Aarhus, Denmark. Representative: V. NEDERGAARD PEDERSEN (Librarian).

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Aslib Proceedings, vol. 6 no. 1
Type: Research Article
ISSN: 0001-253X

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Article
Publication date: 1 May 1973

IN 1971 there were 1,207 scaffolding accidents, 14 of them fatal. This revelation was made by Mr. Dudley Smith, M.P., Parliamentary Under‐Secretary of State at the…

Abstract

IN 1971 there were 1,207 scaffolding accidents, 14 of them fatal. This revelation was made by Mr. Dudley Smith, M.P., Parliamentary Under‐Secretary of State at the Department of Employment, in his recent speech at the Scaffolding Training Centre. In view of his further comments, and the fact that many construction companies operate work study departments, much of what he had to say is worth more publicity than it has so far received.

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Work Study, vol. 22 no. 5
Type: Research Article
ISSN: 0043-8022

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