Even while the surface of each workpiece initially seems smooth and polished, it actually contains many geometric components. Numerous factors (such as the manufacturing method, human factor, and the technology utilized) interfere with the manufacture of components in their optimal shape during the manufacturing process. As a result, produced goods may deviate from the ideal geometry. Verification of such deviations is carried out in accordance with GPS standards and is substantial in terms of functionality and interchangeability (Geometrical specifications and product verifications). The results of the verification are only informative if these standards are not followed.

Since features of slip, wear resistance, adherence to protective coatings like varnishes, corrosion resistance, and fatigue resistance, among others, are connected to roughness parameters, the quality of manufactured surfaces can be evaluated by their surface roughness. It is necessary to have an objective method of evaluation and a roughness or quality parameter in order to evaluate surfaces accurately.

NextGen’s NG-SR400T Surface Roughness Tester can assess the following graphic on its display: Rmr curve, Roughness curve, Primary Profile, Filter waveform.

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