How to extract the characteristics of surface irregularities(roughness)(e.g. max. height of the roughness etc)?

Hello! I have a curved surface extracted from a scanned turbine casing geometry. The surface now is a surface body with some surface irregularities(roughness) on it. I want to flatten this surface and retain the exact irregularities(roughness) on it so that I could get the flat surface with those irregularities manufactured to do some experiments about the irregularities. Does anyone know how I can flatten this curved surface and retain the irregularities(roughness)? Or how could I extract the characteristics of those irregularities( for example, the height, or the coordinates of the irregularities)? If it can't be done in Solidworks, is there any other software or technique to achieve this? Many thanks in advance!

The surface is shown in the first picture (the irregularities are like "hole shape", not that obvious though). It is a SURFACE body rather than a SOLID, and what I am trying to do is shown in the second picture.

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1 Answer

If you have not a original drawing of casing you only can guess a degree of roughness. You can try to simulate a max deviation that you make a sections with 2 concetric circles and then vary a radius. but first you make a solid model adding a thickness to surface.

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