Abstract
In cutting crystalline materials at extremely small depth of cut, the local crystalline orientation has a fundamental influence on the process as well as on the quality of the resulting surface. In this work results from molecular dynamics simulations of the cutting process at atomic level are presented. Specific orientations of the modeled fcc metal showed different chip formation behavior. In opposite to so-called ‘soft orientations’, ‘hard orientations’ did not show any chip formation until a minimum depth of cut was applied. Besides the influence of the crystalline orientation on the limits and the stability of chip formation, also the dependence of surface integrity, chip root and deformation zone on the cutting parameter are discussed.
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