FEM Simulation of Tool Wear in Drilling

The objective of this study is to simulate tool wear in drilling of nickel-based alloys, in particular Inconel 718. When machining these kind of materials, the impact of the thermal and mechanical phenomena generated by tool wear on the surface integrity is of prime concern. For this reason, it impo...

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Bibliographic Details
Published inProcedia CIRP Vol. 58; pp. 440 - 444
Main Authors Attanasio, A., Faini, F., Outeiro, J.C.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2017
ELSEVIER
Subjects
drilling
Engineering Sciences
Inconel 718
Mechanical engineering
Mechanics
modelling
wear
wear
drilling
Inconel 718
modelling
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Summary:The objective of this study is to simulate tool wear in drilling of nickel-based alloys, in particular Inconel 718. When machining these kind of materials, the impact of the thermal and mechanical phenomena generated by tool wear on the surface integrity is of prime concern. For this reason, it important to study the influence of tool wear on tool life, on final part quality and on cutting force and power consumption. Tool wear is caused by several phenomena (adhesion, abrasion, erosion, diffusion, corrosion, fracture etc.) depending on selected cutting parameters (cutting velocity, feed rate, etc.). In some cases these wear mechanisms can be described by analytical models which are function of physical quantities involved in process (temperature, pressure and sliding velocity along the cutting surface). Usually, commercial FEM software allows to implement these tool wear models but without tool geometry update. To overcoming this limitation, a suitable subroutine considering tool geometry update was developed and implemented in SFTC DEFORM-3D FEA software to simulate tool wear in drilling of Inconel 718. A good agreement was obtained between the predicted and measured tool wear data.
ISSN:2212-8271
2212-8271
DOI:10.1016/j.procir.2017.03.249