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Minimizing the distortions during the AM build-up phase by simulation based, adaptive support structure

Wednesday (08.11.2017)
16:40 - 17:00
Part of:

Laser Beam Melting (LBM), as an additive manufacturing technology, has high potential for efficient light weight production. Furthermore there is a huge capability of material saving compared to subtractive methods, which leads to cost saving and a positive ecological evaluation. Nevertheless for a successful process support structure is needed. The sort, amount, dimensions and placement of those structures are mostly based on the experience of the user. Usually there is one set of parameters for those structures applied to the whole part. Depending on how komplex and filigree a part is, the amount of support structure could exceed the mass of the part itselve.

To save material, built-up and post processing time while increasing the process stability, simulation based adaption of support structures can be used. In a first step every lowest point is supported. Afterwards, in a build-up simulation, the distortion is analyzed and when exceeding a threshold, a new support is added and the simulation proceeds, taking the new support into account. First approaches with this method were made using pin-supports in dental applications. The results are promising and show a reduction of the support mass up to 75%.

Christian Kober
University of Bremen
Additional Authors:
  • Sabrina Bergmann
    Bego Medical Bremen GmbH
  • Dr. Christian Werner
    Bego Medical GmbH
  • Prof. Dr. Vasily Ploshikhin
    Universit├Ąt Bremen


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