Characterization of molding and casting materials

Initial situation and problem

In sand and gravity die casting, the correct selection of molding and casting materials ultimately determines the properties and quality of the finished castings to a large extent. A detailed characterization of these materials is therefore of great importance. It also enables a better understanding of the relevant influencing variables between material use and casting process.

Procedure

At the Fraunhofer IGCV we have access to high-quality testing methods:

Characterization of casting materials:

  • Qualitative and quantitative microstructure characterization
  • Reflected light microscopy with phase analysis, particle analysis, phase classification, phase counting
  • Scanning electron microscopy (SEM) and X-ray microanalysis (EDX)
  • Tensile and compression testing
  • Micro- and macrohardness testing

Characterization of molding materials:

  • Surface roughness measurement
  • Particle image analysis
  • Flexural strength
  • Gas permeability test

Determination of roughness values to characterize the surface quality
© Fraunhofer IGCV / Andreas Heddergott
Determination of roughness values to characterize the surface quality
Three-dimensional image analysis for characterization of sand grain morphology
© Fraunhofer IGCV / Andreas Heddergott
Three-dimensional image analysis for characterization of sand grain morphology
Microscopic analysis of the microstructure of cast materials
© Fraunhofer IGCV / Andreas Heddergott
Microscopic analysis of the microstructure of cast materials

Cooperation with Fraunhofer IGCV

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Industry solutions

The key sectors of Fraunhofer IGCV:

  • Mechanical and plant engineering
  • Aerospace
  • Automotive and commercial vehicles

Competences

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