Rapid-Manufacturing-Process for Elastomeric Components

Martin Launhardt, Maximilian Drexler, Dietmar Drummer

Abstract


The Selective Laser Sintering Process of
thermoplastics (SLS) enables the manufacturing of
components with complex shape in a short time period
without the manufacturing of a specific mold. However, this
manufacturing process is limited by the restricted range of
materials. In contrast to this primary shaping process,
vacuum casting allows a quick, inexpensive and highly
accurate process but it is limited to the reproduction of
already existing models. In a novel rapid tooling method,
these two processes are combined. Thus, silicone parts can
be manufactured using SLS molds. The manufacturing of
elastomeric parts in the vacuum casting process using SLS
molds is being investigated. Therefore, the adhesion of
silicone to the SLS mold, as well as the resulting mechanical
properties of the elastomeric parts are investigated. The combination of the SLS process and the vacuum casting process allows the rapid manufacturing of complex elastomeric parts with sufficient mechanical
properties. The surface roughness of the SLS mold influences the adhesion of the casting material to the mold, as well as the mechanical properties of the manufactured elastomeric components. The synergy of using selective laser sintered molds with the vacuum casting technique displays a
novel rapid manufacturing method.

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International Journal of Recent Contributions from Engineering, Science & IT (iJES). eISSN: 2197-8581
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