Investigation of the Oven Process in Indirect Metal Laser Sintering

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Seefried, M.
Zaeh, M.F.

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This paper deals with the optimization of Indirect Metal Laser Sintering. Different experimental analyses have proven that the oven process is highly responsible for the part distortion. By means of polished micrograph sections and thermogravimetric and dilatometric investigations, the oven process has been divided into four main steps: polymer removal, solid-state sintering, infiltration and liquid-phase sintering. Further experiments were carried out at higher temperature phases of the oven process, using modified process parameters. The aim of this research is to improve the knowledge about the oven process. In another step, this process will be simulated by means of finite element analysis in order to minimize the part distortion.


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