Challenges with Hardness Testing on Curved Surfaces
Hey guys, I ran into a frustrating problem recently. I’m trying to test the hardness of some curved metal components for a restoration project. Most of the portable testers I’ve used before either leave ugly marks or can’t properly measure the curved areas. I even tried a couple of impact testers, but they either bounce off or ruin the surface. Is there a solution for accurate measurements on tricky shapes without destroying the parts? I’m willing to invest in a proper tool if it really works.
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Oh, I totally understand your struggle—I was in the exact same situation a few months ago while inspecting some custom motorcycle parts. What really saved me was this device https://teqto.pro/portable-hardness-testers/uci-hardness-testers It uses the Ultrasonic Contact Impedance method, which is basically non-destructive. The probe is small and precise, so I could measure curved shafts, gear teeth, and even polished surfaces without leaving noticeable marks. I could also switch between HRC, HB, and HV scales in seconds, which made comparing results across different materials much easier. Honestly, it felt like having a lab in my backpack—I could take it anywhere, even tight corners, and still get reliable readings every time.