Crater wear mechanisms of TiCN–Ni–WC cermets during dry machining

Kumar, B.V. Manoj; Kumar, Jitesh; Basu, Bikramjit

doi:10.1016/j.ijrmhm.2006.12.001

Cited by 81 publications

(16 citation statements)

References 24 publications

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“…and ). In addition, the morphology of the white core and the white inner rim varied greatly, which was in good agreement with previous observations . These have demonstrated that the white core and the white inner rim formed via diffusion during solid‐phase sintering stage, and the gray (outer) rim formed via Ostwald ripening during liquid‐phase sintering stage .…”

Section: Discussionsupporting

confidence: 91%

“…Ti(C,N)‐based cermets have been widely used as high speed cutting tools in recent few decades. Cutting tools made of Ti(C,N)‐based cermets provide better geometry accuracy control and surface quality of work‐pieces, longer tool life and improved chip, compared with those made of conventional WC–Co cemented carbides, particularly at high speed milling and turning of steels and irons …”

Section: Introductionmentioning

confidence: 99%

“…Ti(C,N)‐based cermets of the new generation generally contain other ingredients to meet the requirements of applications. Mo 2 C, Mo, and WC are often indispensable to realize densification without residual porosity. Moreover, Mo 2 C, Mo, and WC are added to inhibit grain growth, thus leading to the improvement of strength and toughness of Ti(C,N)‐based cermets.…”

Section: Introductionmentioning

confidence: 99%

“…In the final microstructure, ceramic grains generally exhibit the core‐rim structure . The core and the rim are essentially face centered cubic (fcc) NaCl‐type Ti‐based carbonitride solid solutions, but there are significant compositional difference, small lattice parameter difference, and slight misorientation between them . The rim is generally divided into an inner rim and an outer rim, where the inner rim lies between the core and the outer rim, and the inner rim is always richer in heavy elements, such as W, Mo, Ta, etc .…”

Section: Introductionmentioning

confidence: 99%

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Grain Growth in Ti(C,N)‐Based Cermets During Liquid‐Phase Sintering

et al. 2014

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Growth behavior of Ti‐based carbonitride ceramic grains in two high‐Mo Ti(C,N)‐based cermets with Ni and Ni–20Cr (wt%) binders was investigated during liquid‐phase sintering under vacuum at 1410°C, using DSC, XRD, SEM, AEM, and EDS. Grain growth occurred primarily through two‐dimensional nucleation and lateral growth. Most significantly, the grain growth kinetics followed the cubic law, which was controlled by the diffusion of dissolved mass through liquid Ni‐based binder phase. However, when Ni–20Cr (wt%) was used as metallic binder, the inner rim of ceramic grains with the typical core‐rim structure was seldom complete, and there were often some fine Ni‐rich and Mo‐rich speckles in their core. In Ni‐rich and Mo‐rich speckles, there were two kinds of microstructure: one consisted of Ni‐based superlattice phase, and the other consisted of Ti‐based carbonitride ceramic phase and unknown phases. The three‐dimensional thermodynamic equilibrium shape of Ti‐based carbonitride ceramic grains evolved from a {111}‐faceted and round ‐edged octahedron to a {111}‐faceted and sharp‐edged octahedron. In addition, the grain growth rate increased, which was mainly attributed to that the decrease of solid/liquid transformation temperature of Ni‐based binder phase led to the increase of the diffusion rate of dissolved mass through liquid Ni‐based binder phase.

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Section: Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Grain Growth in Ti(C,N)‐Based Cermets During Liquid‐Phase Sintering

et al. 2014

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“…Extensive literature review shows that the forms of tool wear that have been widely studied are crater wear [6] and [7] and flank wear [8] and [9]. In contrast, there is little research on another important form of tool wear called tool-edge wear [10].…”

Section: Introductionmentioning

confidence: 99%

Tool-Edge Wear and Wavelet Packet Transform Analysis in High-Speed Machining of Inconel 718

Fang

Pai

Edwards

2012

SV-JME

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Tool-edge wear (i.e., the wear of a tool cutting edge before it is fully worn away) is among significant concerns in high-speed machining because it can result in early tool failure and deteriorated quality of machined parts. Based on extensive experimental results, this paper shows how tool-edge wear is correlated with the cutting forces and vibrations in high-speed turning of Inconel 718. The following research findings are made from the present study: 1) The development of tool-edge wear depends on the initial tool-edge geometry and the cutting conditions employed.2) The amount of tool-edge wear varies at different measurement points along the tool cutting edge, and increases as the feed rate increases.3) The effect of tool-edge wear on the cutting forces depends on the initial tool-edge geometry and the cutting conditions employed. 4) The traditional time-domain analysis based on the vibration amplitude is not helpful in explaining and showing the dynamic development of tool-edge wear, and wavelet packet transform helps in identifying the changes in the vibration signals in different frequency bands.

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Crater Wear of TiCN Cermets in Conventional Machining

2020

Friction and Wear of Ceramics

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Crater wear mechanisms of TiCN–Ni–WC cermets during dry machining

Cited by 81 publications

References 24 publications

Grain Growth in Ti(C,N)‐Based Cermets During Liquid‐Phase Sintering

Grain Growth in Ti(C,N)‐Based Cermets During Liquid‐Phase Sintering

Tool-Edge Wear and Wavelet Packet Transform Analysis in High-Speed Machining of Inconel 718

Crater Wear of TiCN Cermets in Conventional Machining

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