The effect of machining on the surface properties of SiC/Al composites

Modeling and Assessment of Some Factors that Influence Surface Roughness for the Machining of Particle Reinforced Metal Matrix Composites

“…The machinability of the large particle-reinforced composites with a high composites weight fraction was poor. Similar results were found by Quan and Ye [13] upon cutting SiCp reinforced Al alloy composites. From a surface finishing point of view, however, the surface roughness of the specimens produced using the K10 tools was significantly higher than that of the specimens obtained using the TP30 tools (Figs.…”

“…The presence of hard Al 2 O 3 particles in the aluminum alloy of MMCs causes extremely rapid cutting tool wear and consequently a high tool cost. In the available literature it is obvious that researchers have concentrated on studying the wear characteristics of various tool materials for the machining of aluminum alloy composites [6,[9][10][11][12][13][14][15][16][17]. Studies on the machinability of light alloy composites reinforced with Al 2 O 3 /SiC fibers/particles [5,18,19] indicate poor machinability because of the abrasive wear of tools.…”

Surface finish and integrity of machined surfaces on Al/SiCp composites

“…Therefore, the action of wiper cutting edge is to clean and reconstructing the machined surface would lead to improvement in the surface and hence improve the integrity of the surface generated. Similar conclusions were reported by Quan et al [16] but the application of such tools was not tested. Therefore, two constructions of the cutting edge with and without wiper were chosen for this experiment.…”

“…They concluded that feed rate has highest influence on SF. Yanming and Bangyan [9], analyzed the surface properties of Al/SiCp machined surface and concluded that most of heat stress and elastic restoration stress may be released in the machined surface layer of composites reinforced by coarse particles. They observed compressive stresses in the machined surface of fine particles reinforced MMCs.…”

Analytical modelling of residual stresses in machining

“…The effects of feed rate, depth of cut, cutting speed, coolant, shape of the cutting edge, tool wear, tool coating, and workpiece hardness on residual stresses can be investigated separately, where residual stresses are measured after a carefully controlled machining process using a variety of techniques ranging from X-ray diffraction [3,4] to hole drilling [5,6] and deflection-etching [7]. Various materials including steel [3,5,8,9], ceramics [10,11] and composites [12] have been subjected to similar measurements. Some of the observed effects can be summarized as follows.…”