Surface Roughness Measurement
Surface Roughness Measurement, otherwise known as surface metrology, assesses surface area of a given product or material. Most engineering drawings call out surface finish requirements besides dimensions and tolerances on a part. This type of surface topography assessment is essential in determining whether the surface in question is suitable for functionality purposes. Engineered parts will benefit from this service the most due to the crucial requirement of precise engineering.
How is Surface Roughness Measured?
Surface Roughness Measurement is calculated by the relative roughness of your product’s surface area and is expressed as a single numeric parameter, Sa, or Ra, if the calculation involves calculating the roughness of a product’s linear profile. Roughness can also be measured by a surface roughness comparator or a profilometer that measures surface profile.
ATS' Surface Roughness Measurement Capabilities
Flat surfaces are ideal for dimensional inspections as well as the overall functionality of the product. If a part needs to fit into a section or another part, or if a part may require lubrication, it is important that the flatness of a surface be accurate. ATS Calibrations can ensure the accuracy of a surface with ISO 17025-Accredited flatness accuracy measurements.
After a component has been processed or used, the material’s surface can become worn and imperfections may arise. Surface defects can hinder performance and effectiveness which is important for products that require longevity. Prosthetics, for example, can be measured for general wear and other irregularities after removal and before replacement which is beneficial for future prosthetic procedures. ATS’ Calibrations department can help ensure that your product or mechanical component is performing at the highest level of efficiency.
ATS’ Calibrations department will ensure the reliability of your product to aid in the control of machining and finishing processes and enhance consistency. It is important to measure the surface roughness of a product to ensure that output and associated processes are not outside of established standards and specifications.
Our Surface Roughness Tester: Mitutoyo SJ-301
ATS’ Dimensional Inspections Lab, uses the Mitutoyo SJ-301 to conduct surface finish testing. Below are its measuring specs and capabilities: