Publication: Parametric study of the orthogonal cut machining in composite
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2017-09-26
Defense date
2017-10-09
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Abstract
Nowadays machining fiber reinforced plastic (FRP) composite materials is a compulsory process to satisfy functional requirements of the component. However, the fracture mechanics involved in the material removing process are quite complex. Since up to date the knowledge about this field is considerably poor, industrial machining process of FRP is not optimized yet. This results in low quality machined components where fiber pullouts or matrix delaminations are present. A experimental parametric study of orthogonal machining in multidirectional FRP laminates has been performed looking for the optimum cutting conditions where the machined quality is maximized. Cutting parameters such as cutting speed, depth of the cut or tool geometry have been studied. The influence of these parameters have been evaluated through force measurements, temperature monitoring and a complete damage inspection (external and internal). A meticulous analysis in each cutting condition has been performed and finally it was concluded that the optimum cutting condition was the maximum cutting speed, 200m/min, at the minimum depth of the cut, 0.05mm.
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Composite materials, Fiber Reinforced Plastic (FRP), Machining, Numerical simulation