Cumulative tool wear in machining metal matrix composites Part II: Machinability

Hung, N.P.; Loh, Nee Lam; Xu, Zhe

doi:10.1016/0924-0136(95)02115-9

Cited by 62 publications

(30 citation statements)

References 5 publications

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“…It was also found that in most cases, the tool wear was due to abrasion by the hard reinforcement particles in the matrix material (El-Gallab and Sklad, 1998a;Hung and Zhong, 1996;Davim, 2012;Luliano et al, 1998). Li and Seah (2001) found that the abrasive wear of the tool was accelerated when the percentage of the reinforcement in the MMC exceeded a critical value, which varies with the density and size of the reinforcement particles.…”

Section: Introductionmentioning

confidence: 99%

“…This kind of material is rapidly replacing conventional materials in various automotive and aerospace industries (Surappa, 2003). One of the most extended MMCs are the Al+SiC alloys that cause machining problems due to the high hardness of the reinforcement, which is significantly higher than the conventional tungsten carbide tools (Cronjager and Meister, 1992;El-Gallab and Sklad,1998a;Hung and Zhong, 1996).…”

Section: Introductionmentioning

confidence: 99%

“…However, unstable BUE could cause tool chipping, resulting in poor surface finish. During machining the tool may fracture and pull out the reinforcement particles, resulting in a poor machined surface finish (El-Gallab and Sklad, 1998a;El-Gallab and Sklad, 1998b (Hung and Zhong, 1996;Davis, 1995). Ding et al (2005) demonstrated that during machining with PCBN tools, the severity of transfer material on the tools increased significantly with cutting distance.…”

Section: Introductionmentioning

confidence: 99%

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Machinability of Al-SiC metal matrix composites using WC, PCD and MCD inserts

2014

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SUMMARY:The aim of this work is the study of the machinability of aluminium-silicon carbide Metal Matrix Composites (MMC) in turning operations. The cutting tools used were hard metal (WC) with and without coating, different grades and geometries of Poly-Crystalline Diamond (PCD) and Mono-Crystalline Diamond (MCD). The work piece material was AMC225xe, composed of aluminium-copper alloy AA 2124 and 25% wt of SiC, being the size of the SiC particles around 3 μm. Experiments were conducted at various cutting speeds and cutting parameters in facing finishing operations, measuring the surface roughness, cutting forces and tool wear. The worn surface of the cutting tool was examined by Scanning Electron Microscope (SEM). It was observed that the Built Up Edge (BUE) and stuck material is higher in the MCD tools than in the PCD tools. The BUE acts as a protective layer against abrasive wear of the tool. RESUMEN: Maquinabilidad de composites de matriz metálica Al-SiC usando herramientas de WC, PCD y MCD.El objetivo de este trabajo es el estudio de la maquinabilidad del material compuesto de matriz metálica aluminio-carburo de silicio en operaciones de torneado. Las herramientas de corte utilizadas han sido de metal duro con y sin recubrimiento, diferentes grados de diamante policristalino (PCD) y diamante monocristalino (MCD). El material mecanizado ha sido AMC225xe, compuesto de la aleación de aluminio AA 2124 con un 25% en peso de partículas de SiC con un tamaño medio de 3 μm. Los experimentos se han realizado con diferentes velocidades de corte en una operación de refrentado, midiendo la rugosidad superficial, las fuerzas y el desgaste de la herramienta. La superficie desgastada de la herramienta ha sido examinada en el microscopio electrónico (SEM). Se ha observado que el filo recrecido y el material adherido son mayores en el caso de las herramientas de MCD que en las de PCD. El filo recrecido actúa como una capa protectora contra la abrasión.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Machinability of Al-SiC metal matrix composites using WC, PCD and MCD inserts

2014

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“…Hung and Zhong used WC, CBN and PCD on 10% and 20% SiC-reinforced A359 alloys and 15% and 20% Al2O3-reinforced Al6061 alloys in their studies. They observed that the wear resistance of CBN and PCD tools is better than that of WC tools [7]. Manna and Bhattacharyya carried out studies to properly select tooling for optimum machining at minimum cost.…”

Section: Introductionmentioning

confidence: 99%

Investigations on Machinability of Al<sub>2</sub>O<sub>3</sub> Reinforced Al6061 Metal Matrix Composites

Kanca¹,

Günen²

2016

SDÜ Fen Bil Enst Der

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In this study, six different MMCs containing Al6061 matrix and Al2O3 reinforcements with particle sizes of 32 µm and 66 µm and weight fraction of 10%, 15% and 20% were produced using the vortex method. Machinability tests were conducted at different feed rates and cutting speeds to determine the surface roughness and cutting forces. Result of the tests indicated that the cutting forces positively correlated with the feed rates. Increasing in the cutting speed result in decrease in the cutting forces. The cutting forces did not remarkably vary with respect to the particle size for the same feed rates. The surface roughness negatively correlated with the particle weight fraction. Better surface qualities were obtained at lower feed rates and higher cutting speeds. Al2O3 Katkılı Al6061 Metal Matrisli Kompozitlerin İşlenebilirliğinin İncelenmesi Anahtar KelimelerMetal Matrisli Kompozitler(MMK), İşlenebilirlik, Yüzey kalitesi, Talaşlı imalat Özet: Bu çalışmada Al6061 matrisli ve 32 ve 66 µm tanecik boyutlu ve %10, %15 ve %20 ağırlık oranlı Al2O3 katkılı, metal matris kompozitler vorteks metodu ile üretilmiştir. Üretilen kompozitlerin yüzey pürüzlülükleri ve kesme kuvvetlerinin belirlenmesi amacıyla değişik ilerleme oranlarında ve kesme hızlarında işlenebilirlik deneyleri gerçekleştirilmiştir. Deney sonuçları, kesme kuvvetlerinin ilerleme oranları ile doğru orantılı olduğunu göstermiştir. Kesme hızının arttırılması ise kesme kuvvetlerinin düşmesine neden olmuştur. Aynı ilerleme oranlarında kesme kuvvetleri tanecik boyutu ile belirgin bir değişim göstermemiştir. Yüzey pürüzlülüğü parçacık ağırlık oranı ile ters orantılı olarak ortaya çıkmıştır. Düşük ilerleme oranlarında ve yüksek kesme hızlarıyla daha iyi yüzey kalitesi elde edilmiştir.

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“…They suggested that blending facilitates homogeneous distribution of the SiC in the matrix material. Hung et al (1996) used 10 and 20 vol.% SiC-reinforced A 359 MMCs supplied by Duralcan (San Diego, CA, USA), fabricated by permanent mould casting at pouring temperatures of 700°C to 710°C and at an average stirring rate of 250 rpm. Sahin and Murphy (1996) used metal infiltration technique to produce SiC-coated unidirectional boron fibre-reinforced Al 2014 matrix composites, where the fibre reinforcement was in the form of wide taps made of continuous fibres placed together with titanium tape.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and heat treatment of ceramic-reinforced aluminium matrix composites - a review

Das

Mishra

Singh

et al. 2014

Int J Mech Mater Eng

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Ceramic-reinforced aluminium matrix composites have attracted considerable attention in engineering applications as a result of their relatively low costs and characteristic isotropic properties. Reinforcement materials include carbides, nitrides and oxides. In an effort to achieve optimality in structure and properties of ceramic-reinforced metal matrix composites (MMCs), various fabrication and heat treatment techniques have evolved over the last 20 years. In this paper, the status of the research and development in fabrication and heat treatment techniques of ceramic-reinforced aluminium matrix composites is reviewed, with a major focus on material systems in terms of chemical compositions, weight or volume fraction, particle size of reinforcement, fabrication methods and heat treatment procedures. Various optical measurement techniques used by the researchers are highlighted. Also, limitations and needs of the technique in composite fabrication are presented in the literature. The full potential of various methods for fabricating ceramic-reinforced aluminium matrix composites is yet to be explored.

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Cumulative tool wear in machining metal matrix composites Part II: Machinability

Cited by 62 publications

References 5 publications

Machinability of Al-SiC metal matrix composites using WC, PCD and MCD inserts

Machinability of Al-SiC metal matrix composites using WC, PCD and MCD inserts

Investigations on Machinability of Al<sub>2</sub>O<sub>3</sub> Reinforced Al6061 Metal Matrix Composites

Fabrication and heat treatment of ceramic-reinforced aluminium matrix composites - a review

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