Borlin
Shyu
Sponsored
By: CODEF
Abstract
A
finite element model of face milling is constructed for burr formation
related studies. This model uses an Eulerian formulation to overcome
difficulties users face when dealing with mesh generation and material
separation criterion in Lagrangian models. Because there are sevaral
orders of magnitude of difference between the dimension of burrs and
the typical milling process workpieces, huge numbers of elements are
needed for a finite element model to capture a whole milling process.
The high demands of computing time and computer resources make this
model impractical. A Compromize was made among mesh density, simulation
condition and computing time to get relevent results. Simulation results
of the modified model are presented, showing correlation between numerical
simulation and phenomea observed in experiments.
Keywords:
finite element method, burr formation, face milling, eulerian formulation.
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