Cutter Path Strategy For Machining Craniofacial Medical Implant PEEK Composite

Mohamad Ridwan , Ramli (2013) Cutter Path Strategy For Machining Craniofacial Medical Implant PEEK Composite. Project Report. UTeM, Melaka. (Submitted)

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Abstract

Polyetheretherketones (PEEK) have been increasingly employed as biomaterials for trauma, orthopedic, and spinal implants. Composites such as polyetheretherketone (PEEK) used in orthopedic structural components, are generally manufactured by extrusion, and for this fact, these recent materials need additional machining operations. One of the major concerns in machining is to reach a good surface roughness and dimensional precision. However, the experience acquired without considering the peculiar material response to machining especially to the cutting tool. Hith tool waer and the need for tight tolerance and good surface finish are some of the major concerns in machining this material which are directly relate with the machining cutter path. No significant study has beed carried out so far on the effects of cutter path on machining PEEK composite. This, this research aims to investigate the effects of different cutter path strategy on maching performance. Three cutter path strategies will be investigate namely lead and tilt, normal to dirve surface and optimized lead on the machining performances namely surface roughness, dimensional accuracy and machining time. Portions of human craniofacial complex geometry shape are used as the case study.

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