Simulation of Thermal Effects in NC-Shape Grinding of Free Formed Surfaces using Toroid Grinding Wheels. Part II: Modeling and FE-Discretization

Biermann, D.^{1, a}; Blum, H.^{2, b}; Rademacher, A.^{2, c}; Scheidler, A.V.^{1, d}

1)

Institut für Spanende Fertigung, Technische Universität Dortmund, Baroper Str. 301, 44227 Dortmund

2)

Lehrstuhl für Wissenschaftliches Rechnen (LS X), Technische Universität Dortmund, Vogelpothsweg 87, 44227 Dortmund

a) biermann@isf.de; b) heribert.blum@mathematik.tu-dortmund.de; c) andreas.rademacher@mathematik.tu-dortmund.de; d) scheidler@isf.de

Kurzfassung

This article is focused on the simulation of thermal effects in the NC-shape grinding process of free formed surfaces using toroid grinding wheels. The basic simulation scheme is shortly discussed in the beginning. Then the underlying mathematical model of the simulation is presented. The main ingredients are the Coulomb friction model and the models for the coupling of the heat distribution with the deformation and the process. A finite element scheme is used for discretization, where a complex solution algorithm for the discrete problems is needed. Numerical parameter identification techniques are applied to determine the model parameters, because they cannot be measured directly. Numerical results show the accuracy of the presented simulation approach.

Schlüsselwörter

NC-shape grinding, simulation of thermal effects, finite element method

Veröffentlichung

In: Proceedings of the CIRP 2nd International Conference Process Machine Interactions, 10.6.-11.6. 2010, Vancouver, BC, Canada, ISBN 978-0-9866331-0-2, digital veröffentlicht