Prediction of temperature induced shape deviations in dry milling

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dc.identifier.uri Denkena, Berend Schmidt, A. Maaß, P. Niederwestberg, D. Niebuhr, C. Vehmeyer, J. 2016-12-16T07:50:14Z 2016-12-16T07:50:14Z 2015
dc.identifier.citation Denkena, B.; Schmidt, A.; Maaß, P.; Niederwestberg, D.; Niebuhr, C.; et al.: Prediction of temperature induced shape deviations in dry milling. In: Procedia CIRP 31 (2015), S. 340-345. DOI:
dc.description.abstract In this paper a model for a simulation based prediction of temperature induced shape deviations in dry milling is presented. A closed loop between Boolean material removal, process forces, heat flux and thermoelastic deformation is established. Therefore, an efficient dexel based machining simulation is extended by a contact zone analysis to model the local workpiece load. Based on the computed contact zone the cutting forces and heat flux are calculated using a semi-empirical process model. For a detailed consideration of the loads they are discretized and localized on the dexel-represented workpiece surface. A projection of the localized workpiece loads on the boundary of the finite element domain, taking into account the Boolean material removal during the process, allows the calculation of the current temperature and deformation of the workpiece. By transforming these thermomechanical characteristics back to the dexel-model a consideration in the machining simulation is possible. An extended contact zone analysis is developed for the prediction of the localized shape deviations. Finally, the results of the simulation are compared with measured data. The comparison shows that workpiece temperatures, workpiece deformation and shape deviations in different workpiece areas are predicted accurately. eng
dc.description.sponsorship DFG/DE 447/90-2
dc.description.sponsorship DFG/MA 1657/21-2
dc.language.iso eng
dc.publisher Amsterdam : Elsevier
dc.relation.ispartof 15th CIRP Conference on Modelling of Machining Operations, CMMO 2015, 11-12 June 2015
dc.relation.ispartofseries Procedia CIRP 31 (2015)
dc.rights CC BY-NC-ND 4.0 Unported
dc.subject Deformation eng
dc.subject Dry milling eng
dc.subject Finite element method (FEM) eng
dc.subject Forecasting eng
dc.subject Heat flux eng
dc.subject Machining centers eng
dc.subject Milling (machining) eng
dc.subject Geometric modelling eng
dc.subject Material removal eng
dc.subject Simulation eng
dc.subject Thermal error eng
dc.subject Finite element method eng
dc.subject.ddc 600 | Technik ger
dc.title Prediction of temperature induced shape deviations in dry milling
dc.type article
dc.type conferenceObject
dc.type Text
dc.relation.issn 22128271
dc.bibliographicCitation.volume 31
dc.bibliographicCitation.firstPage 340
dc.bibliographicCitation.lastPage 345
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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