000013796 001__ 13796
000013796 005__ 20161114170357.0
000013796 04107 $$aeng
000013796 046__ $$k2011-05-25
000013796 100__ $$aSteinmann, P.
000013796 24500 $$aComputational Issues in the Dynamics of High-Speed Grinding

000013796 24630 $$n3.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013796 260__ $$bNational Technical University of Athens, 2011
000013796 506__ $$arestricted
000013796 520__ $$2eng$$aGrinding is a process, in which material is mechanically removed from the surface of a workpiece by means of a set of hard grits which are statistically distributed over the circumference of a spinning grinding wheel. Grinding aims at achieving a precise surface roughness and precise workpiece dimensions. Grinding processes which operate with high material removal speeds build the special class of high-speed grinding. Grinding wheel and workpiece are both supported by a grinding machine which, in addition, provides the kinematics and the mechanical energy necessary for the precise material removal. The requirement of a high amount of precision in the process result requires also a high amount of machine strength, stiffness and stability, particularly in the dynamic regime. Indeed, the forces caused by the material removal process result in a dynamical excitation of the grinding machine with a significant impact on the workpiece surface and dimensions. In the past fifty years, there has been a large number of works, which tried to model and simulate grinding processes. Recent works use extensively computer simulations to investigate the physical phenomena taking place during grinding, in general, and at the contact zone between grinding wheel and workpiece, in particular. The present work presents novel issues to model and simulate high-speed grinding processes. Especially, the elastodynamical and thermomechanical behavior of the grinding wheel as well as the way the machine interacts with the process are presented with different examples in detail.

000013796 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013796 653__ $$a

000013796 7112_ $$aCOMPDYN 2011 - 3rd International Thematic Conference$$cIsland of Corfu (GR)$$d2011-05-25 / 2011-05-28$$gCOMPDYN2011
000013796 720__ $$aSteinmann, P.$$iBouabid, A.
000013796 8560_ $$ffischerc@itam.cas.cz
000013796 8564_ $$s7535$$uhttps://invenio.itam.cas.cz/record/13796/files/684.pdf$$yOriginal version of the author's contribution as presented on CD, section: Semi - Plenary Lectures.
000013796 962__ $$r13401
000013796 980__ $$aPAPER