Finite element modelling to predict machining induced residualstresses in the end milling of hard to machine Ti6Al4V alloy
DOI:
https://doi.org/10.21533/pen.v7.i1.1461Abstract
Machining is one of the methods to produce components and products from
raw material. Many factors influence the outcome of the machining process
and the life of the components there after. Researchers have tried to
understand the underlying principles of machining using finite element
analysis since many years. In the present work the authors have made an
attempt to study few behaviour namely, stress distribution, force variation and
machining induced residual stresses while machining hard to machine
Ti6Al4V alloy using finite element analysis. The model that is presented in
this work is an improvisation of some of the existing models overcoming
some of the shortcomings of the existing model. The work presented here uses
the time tested Johnson-Cook model, but unlike the many other works
sacrificial layers is not being used rather, Johnson-Cook damage model is
being used. In addition, the authors have considered opted for oblique cutting
in spite of high computational time due to the want of more accurate results.
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