3D Surface Roughness and Wear Measurement, Analysis and Inspection

If you need less sliding friction, should you make the surface rougher or smoother?

How is sliding friction affected by the surface texture of two dry parallel sliding surfaces? The relationship of dry (sliding) friction to surface texture is linked to the notion of the “Real Area of Contact.” Depending on the surface roughness and the material properties, the real area of contact may not be too dependent on the surface roughness. In other words, if you make the surface “rougher” or “smoother” you may not affect the friction…

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You may also want to check out the Sliding Friction module from our Surface Texture and Tribology short course, available at the online learning site udemy.com

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