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"Machining of metal matrix composites gives the reader information on machining of MMCs with a special emphasis on aluminium matrix composites. Chapter 1 provides the mechanics and modelling of chip formation for traditional machining processes. Chapter 2 is dedicated to surface integrity when machining MMCs. Chapter 3 describes the machinability aspects of MMCs. Chapter 4 contains information on traditional machining processes and chapter 5 is dedicated to the grinding of MMCs. Chapter 6 describes the dry cutting of MMCs with SiC particulate reinforcement. Finally, chapter 7 is dedicated to computational methods and optimization in the machining of MMCs."

"In this paper an attempt has been made to study the effects of the process parameters of wire cut electrical discharge machining (WEDM) on Magnesium-Silicon Carbide MMC with 5% SiC in particulate form. For the analysis, six factors, namely pulse on time, pulse off time, spark gap voltage, peak current, dielectric flushing pressure and servo feed have been taken and a Taguchi L16 orthogonal array for two levels was used. Response surface methodology was also used to develop second-order models for material removal rate (MRR) and surface roughness (SR). From the analysis of variances, it has been observed that pulse on time and pulse off time were the most significant parameters among all those observed in predicting the MRR and SR, respectively."

"Komposit matriks atau MMC's menawarkan masa depan yg baik,spesifik kekakuan (stiffnes) dan kekuatan meningkat relatif terhadap bhn tanpa penguatan walaupun sifat meakanik dpt dipengaruhi oleh kehadiran porositas dr prosesi pengecoran dengan stiring.Pengaruh dr penekanan isostatik panas (HIPping) pd porositas didlm paduan aluminium stir-cast A357/15 vol%Sic partikel MMC's telah diteliti.Empat perlakuan HIPping yg berbeda telah diselidiki dan hasilnya menunjukkan bahwa HIPping dengan kondisi 565oC/103 MPa/15 menit diikuti oleh 535oC/103MPa/2 jam adalah yg optimum.Pengujian 4 titik banding dengan takik tunggal dilakukan pd benda uji yg telah mengalami HIPping. Kekuatan bending telah meningkat secara signifcan krn berkurangnya porositas setelah kondisi HIPping ini di bandingkan bhn bakunya.Partikel penguat keramik yg dikombinasikan dengan paduan aluminium matrix composit dpt menyediakan kebutuhan antara penghematan berat(pengurangan berat) dan ketangguhan yg diperlukan."

"Pure Al/SiC metal matrix composites (MMC) have been successful produced by the Lanxide process with different processing temperature for 8 hours. The process is simply without aid externally pressure. However, N2 oxygen free was flushed during the process. Molten pure Al has fully infiltrated to the preform with Sl/1% Mg at 750, 800, 850, 900 and 1000°C§ but infiltration did not occur to the preform with 3Vj'% Mg. Voids exist above the infiltrated preform in the systems with higher temperature (900 °C and 1000°C) for 8 hours. Such voids were not formed in the systems with low temperature. This paper described the investigation into the production of pure Al matrix composites, the eject of processing temperature will be investigated and the resulting will be fully characterised."

"The present work aims to improve the microstructure and hardness relatedproperties of age hardened Al6061-SiC reinforced composites produced by a two stage stir casting method. Three composites with2, 4, and 6wt. % (35-40μm) of SiC reinforcement are subjected tomicrostructural examination and hardness test at different locations to analysethe uniform distribution of the reinforcements in the matrix. As-castcomposites are solution-treated at 558°C, followed by an aging treatment conducted at 100, 150, and 200°C, during which peak hardness values are noted. The peak agedsamples are subjected to hardness and wear tests. In line with the objectives, ranges from 80-100% and 120-145% additional increase in hardnessvalues are observed over as-cast alloy during the aging treatment conducted at 100, 150 and 200°C, respectively. Lower temperature aging showssubstantial improvement in hardness and wear resistance over high temperatureaging in each respective group. Alsohigher weight percentages of reinforced composites show excellent wearresistance, due to the presence of eroded iron particles fromthe counter surface which is regarded as a beneficial effect during the wear test. The presence of SiC particles provides more sites for the nucleation of fineprecipitates. These fine precipitates hinder the movement of dislocation andthus increases hardness as well as wear resistance after the precipitation hardening treatment."

"The present work aims to improve the microstructure and hardness related properties of age hardened Al6061-SiC reinforced composites produced by a two stage stir casting method. Three composites with 2, 4, and 6wt. % (35-40?m) of SiC reinforcement are subjected to microstructural examination and hardness test at different locations to analyse the uniform distribution of the reinforcements in the matrix. As-cast composites are solution-treated at 558°C, followed by an aging treatment conducted at 100, 150, and 200°C, during which peak hardness values are noted. The peak aged samples are subjected to hardness and wear tests. In line with the objectives, ranges from 80-100% and 120-145% additional increase in hardness values are observed over as-cast alloy during the aging treatment conducted at 100, 150 and 200°C, respectively. Lower temperature aging shows substantial improvement in hardness and wear resistance over high temperature aging in each respective group. Also higher weight percentages of reinforced composites show excellent wear resistance, due to the presence of eroded iron particles from the counter surface which is regarded as a beneficial effect during the wear test. The presence of SiC particles provides more sites for the nucleation of fine precipitates. These fine precipitates hinder the movement of dislocation and thus increases hardness as well as wear resistance after the precipitation hardening treatment."