![]() ![]() DIN ISO 1302, DIN 4768 - Comparison of Roughness Values. Another term, analagous to Surface Texture, is Surface Topology. Surface Finish when it is intended to include all three characteristics is often called Surface Texture to avoid confusion, since machinists often refer to Surface Roughness as Surface Finish. Surface Finish is a measure of the overall texture of a surface that is characterized by the lay, surface roughness, and waviness of the surface. Aside from dimensions and tolerances, another important callout is Surface Finish. Engineering prints call out a great many things in their attempt to make sure the part that gets made matches the designer’s intent. Complete Guide to Surface Finish Symbols, Charts, RA, RZ, Measurements, and Callouts Definition of Surface Finish Before we get on with Surface Finish Symbols, let’s understand how Surface Finish is defined.
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