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Turned surface profiles can be divided into a periodic and a random component. The periodic component is a function of the tool shape and the feed rate. The random component is caused by machine vibrations. To monitor the turning process, the periodic component is the essential global microtopographic feature which reacts sensitively to tool wear and tool scars. A measuring method evaluating the periodic...
Atomic structure determines physical properties of crystalline surfaces. Mechanically machined surfaces of brittle monocrystalline semiconductors, such as Si or GaAs, are characterized by microscopically small fracture areas of the same crystallographic orientation. The slopes of fracture areas and their frequency indicate the crystallographic orientation of the surface. As fracture areas are very...
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