High wear performance of the dual-layer graded composite diamond coated cutting tools

Dumpala, Ravikumar; Chandran, Maneesh; Shanmugavel, Madhavan; Ramamoorthy, B.; Rao, M. S. Ramachandra

doi:10.1016/j.ijrmhm.2014.07.023

Cited by 33 publications

(4 citation statements)

References 27 publications

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“…The smooth surface with respect to the arithmetic mean value of the profile coordinate Ra nano ¼ 1.0 μm caused by the crystal size is particularly suitable for machining adhesive materials. [18][19][20][21] When combining micro-and nanocrystalline coating morphologies alternatingly in multilayer structures, the properties of both layer morphologies are interconnected (Figure 1).…”

Section: Cvd Diamond Coating Morphologymentioning

confidence: 99%

Ex Situ Residual Stress Analysis of Chemical Vapor Deposited Diamond Coated Cutting Tools by Synchrotron X‐Ray Diffraction in Transmission Geometry

et al. 2021

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Section: Cvd Diamond Coating Morphologymentioning

confidence: 99%

Ex Situ Residual Stress Analysis of Chemical Vapor Deposited Diamond Coated Cutting Tools by Synchrotron X‐Ray Diffraction in Transmission Geometry

et al. 2021

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“…The results showed that the cutting performance of multilayer diamond-coated tool was better than that of double-layer diamond-coated tool and monolayer micron diamond-coated tool. [17] In the intermittent contact process between the tool surface and the workpiece, the cutting edge is damaged through coating brittle damage and wear, which directly limits the cutting performance and workpiece surface quality. [18,19] The failure mode is related to the properties of the tool surface material.…”

Section: Introductionmentioning

confidence: 99%

“…The results showed that the cutting performance of multilayer diamond‐coated tool was better than that of double‐layer diamond‐coated tool and monolayer micron diamond‐coated tool. [ 17 ]…”

Section: Introductionmentioning

confidence: 99%

Cutting Performance and Wear Mechanism of Multilayer Diamond‐Coated Tools

et al. 2023

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Monolayer and multilayer diamond films are deposited on WC‐Co cemented carbide by hot‐filament chemical vapor deposition. The growth characteristics of diamond coatings are analyzed. Cutting performance characteristics such as tool life and the stability of machining process in the machining of presintered ZrO2 are compared based on the variation of cutting speed and resultant cutting force, and workpiece surface roughness. For the monolayer diamond coatings, as the concentration of CH4 increases from 1% to 5%, the diamond crystal is transformed from micron columnar crystal to nanocluster crystal. The multilayer diamond coatings combine the advantages of micron‐ and nanocrystalline structures. The multilayer diamond‐coated tool exhibits longer service life and better machining quality. Because of the appearance of the brittle–plastic conversion mechanism, the surface integrity of ZrO2 processed by multilayer diamond‐coated tool is relatively high. As for the uncoated tool, the workpiece is mainly machined by brittle spalling. The interfacial stratified fracture system between the interlayers is proposed to be the toughening mechanism of the multilayer structure.

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“…Hence, considering that MCD film and NCD film can complement each other, multilayer technique is designed with MCD film as bottom layer and NCD film as top layer [16][17][18]. Recent studies have showed that the multilayer structure has superior friction performance, critical load and adhesion strength compared to monolayer structure [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Effect of bottom micro-crystalline diamond (MCD) layer and top nano-crystalline diamond (NCD) layer onto the tribological behavior of (MCD/NCD) bilayer film

Luo

et al. 2020

Mater. Res. Express

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In this study, a comparative study of a series of (MCD/NCD) bilayer films with different MCD grain sizes and NCD layer thickness deposited on cemented tungsten carbide (WC-Co) flat substrates was conducted by changing the deposition time. Tribological behaviors of these diamond films were evaluated by using a reciprocal tribometer without lubrication. In friction test against Si 3 N 4 balls, the (3hMCD/6hNCD) bilayer film showed the lowest coefficient of friction (0.059) and wear rates of counterpart balls (1.75×10 −6 mm 3 N −1 m −1 ) because of its lowest surface roughness and higher sp 2 content. This work provides a guide to choose suitable (MCD/NCD) bilayer basic structure in multilayer diamond film for getting a fine diamond film with low roughness and great tribological performance for different applications.

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High wear performance of the dual-layer graded composite diamond coated cutting tools

Cited by 33 publications

References 27 publications

Ex Situ Residual Stress Analysis of Chemical Vapor Deposited Diamond Coated Cutting Tools by Synchrotron X‐Ray Diffraction in Transmission Geometry

Ex Situ Residual Stress Analysis of Chemical Vapor Deposited Diamond Coated Cutting Tools by Synchrotron X‐Ray Diffraction in Transmission Geometry

Cutting Performance and Wear Mechanism of Multilayer Diamond‐Coated Tools

Effect of bottom micro-crystalline diamond (MCD) layer and top nano-crystalline diamond (NCD) layer onto the tribological behavior of (MCD/NCD) bilayer film

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