The Extended Porosity/Inclusion Analysi with VGStudioMax

The Extended Porosity/Inclusion Analysis Module supports three of the most important guidelines for porosity analysis in order to make evaluations for cast parts easily understandable and reproducible: BDG Reference Sheets P 201, P 202, and P 203.

P 201 and P 202

To classify porosity parameters in slice images, VDG Specification P 201 (VW 50097) as well as BDG Reference Sheet P 202 (VW 50093) is used. These analyses provide a digital, fully non-destructive take on the classic micrograph analysis, which was achieved by sawing open the component.

With the analyses according to VDG - P 201 and BDG - P 202, you can tolerance the following parameters in arbitrarily oriented digital component sections by means of a porosity key:

  • Maximum surface porosity
  • Maximum pore diamenter (equal area of circle [ØF])
  • Maximum length of pores ("Ferret"; compared diameter [ØL])
  • Minimum normalized distance between adjacent pores
  • Maximum number of pores

The evaluation is performed both in the entire section and in reference areas (square, rectangle, triangle, circle) set by the user.

P 203

The BDG Reference Sheet P 203 not only extends VDG - P 201 and BDG - P 202 to 3D but also puts an additional focus on the specific assessment of functionally relevant part areas by using free-form regions.

Volume Graphics software integrates important specifications according to the BDG Reference Sheet P 203 for the definition of the volume for pore assessment as well as for the definition of three-dimensional characteristics of internal volume deficits. Intuitive input functions make it easy to define porosity specifications based on the porosity key according to BDG - P 203.

Volume Graphics software also allows you to perform the porosity analysis according to BDG - P 203 on raw parts with additionally inserted reference surfaces, such as a 3D CAD machined part. This allows you to evaluate the porosity on the to-be-machined surfaces in advance.

Furthermore, the porosity key according to BDG - P 203 can also be used to exclude discontinuities from the evaluation due to their porosity parameters, such as gas pores and micro-cavities with a maximum diameter of 0.6 mm.

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