CVD diamond tool performance in metal matrix composite machining

Chou, Y. Kevin; Liu, Jie

doi:10.1016/j.surfcoat.2005.08.094

Cited by 95 publications

(38 citation statements)

References 13 publications

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“…Other studies on temperature predictions in machining of MMCs are concerned with the temperatures observed on the cutting tool [107,108]. The authors compared experimentally measured cutting temperatures with simulation predictions.…”

Section: Particulate Based Compositesmentioning

confidence: 99%

Modeling of machining of composite materials: A review

Dandekar¹,

Shin²

2012

International Journal of Machine Tools and Manufacture

377

121

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Section: Particulate Based Compositesmentioning

confidence: 99%

Modeling of machining of composite materials: A review

Dandekar¹,

Shin²

2012

International Journal of Machine Tools and Manufacture

377

121

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“…Although these composites have excellent performance characteristics, their poor machining efficiency leads to severe cutting tool wear, and difficulty in obtaining the fine surface quality was explained in review by Basavarajappa et al 1 . Pramanik et al 2 , Basavarajappa 3 and Chou and Liu 4 were reported that the main concern when machining of particulate metal matrix composites is extremely high tool wear and poor surface finish due to the abrasive action of the ceramic reinforcing particles compared to monolithic alloys. This is due to the presence of hard ceramic particles in composites, which acts as small cutting edges resulting in poor surface finish.…”

Section: Introductionmentioning

confidence: 99%

Influence of graphite particles on surface roughness and chip formation studies in turning metal matrix composites

Basavarajappa

Davim

2013

Mat. Res.

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This study presents an experimental investigation on surface roughness and chip formation in turning of Al 2219/15SiCp and Al 2219/15SiCp-3Gr (hybrid) composites. Experiments were conducted with different cutting conditions using carbide, coated carbide and polycrystalline diamond (PCD) tools. The results reveal that the surface roughness values are less for coated carbide tools compared to carbide and are minimum for PCD tools. The incorporation of graphite in Al 2219/15SiCp composite increases the surface roughness. This is due to smearing and removal of softer and amorphus graphite particles on the surface of the specimen, creates pits on the machined surface which increases the surface roughness values. The graphitic composite produced discontinuous chips leads to easy machining. PCD tool performs better than carbide and coated carbide tools.

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“…In the present work, and despite the short serrated chips produced for all cutting conditions (see inset micrographs in Figure 4), there is marked evidence of the formation of a crater. From the SEM micrographs of the cutting tips it is also clear that some cracks appear at the surface layer of the rake face or may even cross -30 µm CVD diamond coating [9]; increases more rapidly than the axial Ffeed, surpassing it for depth of cut values above one millimetre.…”

Section: Multilayer Mcd/ncd Coatingsmentioning

confidence: 99%

Multilayer CVD Diamond Coatings in the Machining of an Al6061-15 Vol % Al2O3 Composite

et al. 2017

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Abstract:Ceramic cutting inserts coated with ten-fold alternating micro-and nanocrystalline diamond (MCD/NCD) layers grown by hot filament chemical vapor deposition (CVD) were tested in the machining of an Al based metallic matrix composite (MMC) containing 15 vol % Al 2 O 3 particles. Inserts with total coating thicknesses of approximately 12 µm and 24 µm were produced and used in turning: cutting speed (v) of 250 to 1000 m·min −1 ; depth of cut (DOC) from 0.5 to 3 mm and feed (f ) between 0.1 and 0.4 mm·rev −1 . The main cutting force increases linearly with DOC (ca. 294 N per mm) and with feed (ca. 640 N per mm·rev −1 ). The thicker coatings work within the following limits: DOC up to 1.5 mm and maximum speeds of 750 m·min −1 for feeds up to 0.4 mm·rev −1 . Flank wear is predominant but crater wear is also observed due to the negative tool normal rake. Layer-by-layer wear of the tool rake, and not total delamination from the substrate, evidenced one of the advantages of using a multilayer design. The MCD/NCD multilayer diamond coated indexable inserts have longer tool life than most CVD diamond systems and behave as well as most polycrystalline diamond (PCD) tools.

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CVD diamond tool performance in metal matrix composite machining

Cited by 95 publications

References 13 publications

Modeling of machining of composite materials: A review

Modeling of machining of composite materials: A review

Influence of graphite particles on surface roughness and chip formation studies in turning metal matrix composites

Multilayer CVD Diamond Coatings in the Machining of an Al6061-15 Vol % Al2O3 Composite

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