Differentiators


1. Accuracy

  • Unlike the inherent strain approach, Netfabb Simulation’s novel Multi-Scale modeling is entirely physics based, requiring no model tuning based on experimental test specimens
  • The Multi-Scale modeling approach accounts for machine parameters (power, scan speed, etc.), scan pattern effects, and material properties
  • Part-Level models can be applied to entire build plates, capturing the complex thermal and mechanical interaction between parts during the build process

    multi-scale

    Physics based Multi-Scale modeling approach

2. Speed & Scalability

  • Adaptive meshing allows for variable voxel size, using fine voxels to capture geometric detail and coarse voxels to mesh thick section, in order to keep the number of equations in the analysis as low as possible
  • The Multi-Scale approach is highly scalable, allowing for for small geometries to be simulated in seconds and complex geometries that occupy the entire build volume to be simulated in hours
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Simple geometry (~20k degrees of freedom) Run time = 58 seconds

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Complex geometry (~15M degrees of freedom) Run time = 3.5 hours

3. Unique features

  • In addition to simulating temperatures, stress, and distortion, Netfabb Simulation can apply Multi-Scale modeling to predict Part-Level Hot Spots and Lack of Fusion
  • Netfabb Simulation can simulate full build plates including loose unmelted powder
  • All common Additive processes can be simulated including both Powder Bed Fusion (e.g. EOS, SLMS, etc.) and Directed Energy Deposition (e.g. LENS, Sciaky, etc.)
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Prediction of Hot Spots induced by the manufacturing process