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Curling is an international, Olympic sport that is a challenge of both skill and strategy. If you search the Internet, you’ll find videos describing the immense amount of care that

Download this article as a PDF When measuring roughness with a stylus-based system you’ll hear the terms “traversing length,” “evaluation length” and “sampling length.” It’s important to understand their specific

Download this article as a PDF Rz is always Rz…isn’t it? Usually, but not necessarily. Rz, the average maximum surface height, is one of the most widely used surface texture parameters.

…Modern metrology instruments, methods and surface texture parameters have made it possible to describe, in great detail, the functionally important features of a surface’s texture. A key aspect of surface

How do I measure Ra 32? or 32 Ra? or 32? Download this article as a PDF Average roughness (Ra) is the tip of the deep and complex world of

Paint appearance is critical to the perception of quality, particularly in consumer goods such as automobiles. We’ve written frequently in this blog about surface texture consisting of a spectrum of

Wear between two surfaces in contact can take the form of mechanisms such as ploughing, abrasion, adhesion, fatigue, etc. The initial phase of a component’s life will involve some period

When surfaces move against each in contact, we need to understand how the surfaces interact, how much friction is involved, and how they will wear in response to the contact.

We are commonly asked to clarify the differences between R and S surface roughness parameters. This often comes up when someone begins working with a new instrument, part or process

The autocorrelation function (ACF) is a measure of how random or periodic a surface is. ACF is found by creating a duplicate of the surface, then shifting the duplicate relative