What does "surface finish" refer to in machining?

Enhance your CNC Milling skills for the SkillsUSA CNC Milling Exam. Study with targeted flashcards and multiple-choice questions, complete with explanations and hints. Prepare confidently for your exam!

Surface finish in machining specifically refers to the texture and smoothness of a machined surface. It is a critical factor that influences the performance and aesthetics of the finished product. A better surface finish can enhance the mechanical properties of a part, such as its fatigue strength and corrosion resistance, and it can also lead to better wear resistance. Furthermore, surface finish is often specified in engineering drawings and can be measured using various techniques, such as surface roughness measurement.

Other aspects of machining, such as cost efficiency, tool life, and machining time, while important, do not address the physical characteristics of the surface created by the machining process. Therefore, they are not relevant when defining what surface finish specifically means in this context.

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