Influence of textured diamond film on tribological properties of cemented carbide substrate

Xiang, Daohui; Chen, Yanbin; Guo, Zhen; Feng, Haoren; Wu, Bangfu; Niu, Xuming

doi:10.1016/j.ijrmhm.2018.10.011

Cited by 12 publications

(5 citation statements)

References 24 publications

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“…Many studies have evaluated the effect of surface texture on tribological properties [28,29]. The results show that there is an important geometric effect from the sample textures and the friction environment factors on the tribological performance.…”

Section: Discussionmentioning

confidence: 99%

Investigation of tribological performance of micro-groove textured cemented carbide surfaces

Zhang

Yang

Jiang

et al. 2019

Surface Engineering

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Three kinds of grooved textures with different geometric patterns were prepared on cemented carbide tool surfaces. Finite element software FLUENT was used to simulate and analyse the fluid pressure of lubricants on the different micro-groove textured surfaces. Friction and wear experiments of titanium alloy balls and cemented carbides were carried out to investigate the tribological properties. The results show that the friction coefficient of the line groove textured surface is the smallest under dry friction conditions. Moreover, the friction coefficient of the sinusoidal groove textured surface is the smallest under fluid lubricated conditions. Experimental results show that lubrication of the grooved textured surfaces is consistent with the numerical simulation results. The main friction reduction mechanism of textures involves reducing the contact area of friction pairs and capturing debris under unlubricated conditions and supplying lubrication to form a continuous lubrication film and producing a dynamic pressure effect under fluid lubricated conditions.

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Section: Discussionmentioning

confidence: 99%

Investigation of tribological performance of micro-groove textured cemented carbide surfaces

Zhang

Yang

Jiang

et al. 2019

Surface Engineering

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“…Numerous studies have been conducted on the output power and scanning speed of femtosecond lasers. Positive application outcomes have been achieved by studying the impact of scanning durations [30,31], target surface micro-textures [32][33][34], and even the microstructure scale on aspects of tool processing.…”

Section: Introductionmentioning

confidence: 99%

Study on the Rate of the Removal of Nano-Crystalline Diamond—Coated Materials by Femtosecond Laser Etching

Ren,

Ma,

Cao

et al. 2023

Applied Sciences

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The rate of the removal of materials coated with nano−crystalline diamonds by femtosecond laser etching was examined by adjusting the repetition rate of the femtosecond laser, the energy−flux density of the concentrated spot, and the scanning speed. The observational results of the white-light interferometer and the numerical fitting approach were used to develop the removal rate function model of the nano-crystalline diamond-covered material etched by the femtosecond laser. The findings demonstrated that the rate of material removal was not greatly affected by the repetition frequency and that the amount of laser energy accumulated over time on the coated surface is steady. The processing outcomes under different laser scanning speeds are different, and the material removal rate tends to increase and then decrease with an increase in scanning speed. The greater the energy−flux density of the focused spot, the greater the etching intensity, and the greater the material removal rate. With an increase in scanning speed, the rate at which the material is removed often rises initially before falling.

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“…Currently, acid–alkali two-step chemical pretreatment, the addition of a transition layer, and surface modification treatment are the most widely used techniques for the preparation of carbide tool substrates before CVD diamond deposition. The acid–alkali two-step pretreatment procedure is the most used approach for diamond-coated tool substrate pretreatment in industrial applications due to its low cost, ease of operation, and applicability for carbide tools with complex shapes [ 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Substrate Pretreatment Process on the Cutting Performance of Diamond-Coated PCB Micro-Milling Tools

Yang

Lin

et al. 2022

Micromachines

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Diamond coatings were deposited on PCB (printed circuit board) carbide milling tool substrates under various schemes of acid and alkali pretreatment by hot filament chemical vapor deposition (HFCVD). Scanning electron microscopy and X-ray coating analysis were used to examine the surface morphology of the milling tools and the impact of de-cobalt from the substrate surface after pretreatment. Milling experiments were carried out to study the cutting performance of diamond-coated PCB micro-milling tools under various pretreatment processes. The results show that abrasive wear, coating flaking, and cutting-edge chipping are the main failure forms of coated PCB milling tools. The substrate pretreatment process with 20 min of alkali etching followed by 20 s of acid etching allows the diamond-coated micro-milling tools to produce the best film–substrate adhesion and substrate strength. These milling tools also have the longest service lives and are suitable for the high-speed cutting processing of PCB.

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Influence of textured diamond film on tribological properties of cemented carbide substrate

Cited by 12 publications

References 24 publications

Investigation of tribological performance of micro-groove textured cemented carbide surfaces

Investigation of tribological performance of micro-groove textured cemented carbide surfaces

Study on the Rate of the Removal of Nano-Crystalline Diamond—Coated Materials by Femtosecond Laser Etching

Effect of Substrate Pretreatment Process on the Cutting Performance of Diamond-Coated PCB Micro-Milling Tools

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