Abstract
This article investigates the machinability of two Al/SiC particulate metal-matrix composites (MMC) with 5 and 15% vol. SiC particles. Dry turning tests were performed with three different CVD diamond-coated tools. In a first series of experiments, various cutting conditions were tested and their effects on tool wear mechanisms were studied. For the second series, optimal cutting conditions were chosen and tool life was investigated. The consumed spindle power was continuously measured; it was shown that its increasing follows the evolution of the tool wear criteria. Residual stresses at the machined surfaces were measured by X-ray diffraction technique. The effect of SiC percentage in the MMC on the machinability was also investigated.
Published Version
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