Our business is applying coatings to components of many shapes and sizes. It is typically possible to either draft the nominal shape of the component as a solid model or to build a representation of the piece prior to coating from CMM data. My interest is in measuring applied coating thickness after deposition by taking hits on the modified surface and determining the distance of the hit point away from the original surface. I cannot seem to find a constructed geometry that will fit this need. Does such a tool exist in PC DMIS? In the example below, we measured the conical surface CON1 prior to coating, using CYL1 and PLN1 for alignment. Coating was applied to the interior surface of the cone at PNT1 and PNT2. I'd like to know how far away (in a direction normal to the surface below) PNT 1 and PNT2 are from CON1.
Thanks Dan_M and Jefman.... I think the key was the T value. I need the deviation from nominal of the hits I take, and I wasn't able to identify this parameter from the PC-DMIS literature I'd checked out so far. Dan_M, the gauge you mentioned in your last post is probably an eddy current thickness gauge, and it is great for getting an accurate thickness of a non-ferromagnetic coating applied to a metallic substrate. In my case, I'm literally spraying steel onto steel, and there is not enough dissimilarity in the base and applied materials to use this approach... CMM is my only option. Thanks for the guidance, all!
Thanks Dan_M and Jefman.... I think the key was the T value. I need the deviation from nominal of the hits I take, and I wasn't able to identify this parameter from the PC-DMIS literature I'd checked out so far. Dan_M, the gauge you mentioned in your last post is probably an eddy current thickness gauge, and it is great for getting an accurate thickness of a non-ferromagnetic coating applied to a metallic substrate. In my case, I'm literally spraying steel onto steel, and there is not enough dissimilarity in the base and applied materials to use this approach... CMM is my only option. Thanks for the guidance, all!
