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Publication date: 1 October 2003

Sebastian Storch, Detmar Nellessen, Guenther Schaefer and Rolf Reiter

Metal‐based powder systems for selective laser sintering applications provide flexibility in the part geometry and promise a high quality profile regarding their material…

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Abstract

Metal‐based powder systems for selective laser sintering applications provide flexibility in the part geometry and promise a high quality profile regarding their material technologies characteristic. In this field of application, materials have to fulfil high demands on their properties already in the conceptual phase of development. For the integration of selective laser sintered parts into the development process, determining their properties using material engineering methods is absolutely essential. This paper concerns with the methods of material analysis, the particular material properties of sintered metals and finally with the description of the properties of the powder systems EOS DirectSteel 20 and 3D Laser Form ST100 in comparison to conventional materials used in automotive engines and power trains.

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Rapid Prototyping Journal, vol. 9 no. 4
Type: Research Article
ISSN: 1355-2546

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Article
Publication date: 1 September 2004

Martin Augsburg, Sebastian Storch, Florian Nissen and Gerd Witt

Optoforming is meant to be a potential substitution for the established Stereolithography (SLA) process. Its potential is that different ceramic‐filled photo‐curable epoxy‐resins…

1210

Abstract

Optoforming is meant to be a potential substitution for the established Stereolithography (SLA) process. Its potential is that different ceramic‐filled photo‐curable epoxy‐resins can theoretically be used to manufacture highly loadable parts and tools. The stiffness as well as the thermal and chemical resistance of the material used (an epoxy resin named Tooling B) are higher than those of established SLA‐materials, such as SOMOS 7120. Automotive applications, in fields where the parts are directly used parts, such as lighting housings for prototype purposes, as well as tools for the veneering process in small batch production, were successfully tested. In order to enable precise and cost‐effective fabrication, optoforming has to be developed further in the field of secondary processes, such as inline‐filtration of the material and its feeding, as well as the machine software. Currently, another competitor offers a more mature process based on upgraded SLA machines, which use a ceramic‐filled epoxy‐resin also.

Details

Rapid Prototyping Journal, vol. 10 no. 4
Type: Research Article
ISSN: 1355-2546

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