Development of a Quality System for Polymer Based Selective Laser Sintering Process

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Stephen, A.O.
Dalgarno, K.W.
Munguia, J.

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University of Texas at Austin


The aim of this study is to develop a quality system for selective laser sintering, based on defining a minimum set of tests to qualify a build. MFI, impact and flexural tests were assessed, along with density, dimensional measurements and SEM. A benchmark part was designed for manufacture to track changes in key parameters from build to build, and tests on this validated against ISO standards. It is concluded that a combination of measures of flexural modulus, density and impact strength can be used for process monitoring and to infer the quality of a build in SLS process.


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