Surface roughness measurement

[[Ti...]]

Dear community, I would like to measure the surface roughness of a part.

How can I do that using GOM Inspect?

 

Here is a screenshot of my current view, I was able to import my point cloud.

[[Na...]]

Hello Timo,

you could create a surface defect map on your surface. If there is a surface comparison of some kind in your project, the check "form change rate" may give you an idea, too. Your mesh has a lot of holes, though. So the inspections might not work out as expected with a clean mesh. Judging from the color in your screenshot, the surface's normals are inverted, too (if we are looking at the outer surface). This can be changed under operations -> mesh in the menu.

Regards,

Nanno

[[Da...]]

Does GOM Inspect report back the Roughness Average per ASME 46.1 Surface Texture Surface Roughness waviness and Lay?

What if we need to find out the Rz1Max , Rp, or .etc per ISO 1997?

Is the data taken from an ATOS accurate enough to provide actual results within a reasonable gage to tolerance ratio with respect to an Ra of 125?

[[Ja...]]

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 Ra cannot be evaluated in GOM (zeiss) inspect, atos sytems cannot capture this level of detail to pull out a reliable roughness value.   You ned something like Alicona for surface roughness applications .

I would agree with nanno the point cloud you have looks quite noisy so even if you could extract it it would be heavily influenced by this noise.