Simulation and experimental researches on HFCVD diamond film growth on small inner-hole surface of wire-drawing die with no filament through the hole

Wang, Xinchang; Wang, Chengchuan; Sun, Fei; Ding, Chaoyue

doi:10.1016/j.surfcoat.2018.01.083

Cited by 16 publications

(3 citation statements)

References 33 publications

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“…Moreover, compared with the traditional copper holder, the difference with the ceramic one decreases by 54 %. It should be noted that since the permitted substrate temperature should be generally maintained around 600-1000 • C for depositing the polycrystalline diamond films [8,12], too low a thermal conductivity may result in an excessively high substrate temperature that exceeds the permitted values. Fortunately, the substrate temperature is maintained in the permissible range for the three cases.…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

“…Hot filament CVD (HFCVD) is one of the earliest and most mature methods for depositing the diamond films. Compared with other CVD methods, this method has such advantages as simple equipment, easy control of growth process, and being suitable for the high-throughput preparation of CVD diamond coated tools [6][7][8]. For the high-efficiency and high-quality fabrication of the diamond coated tools, especially for tools with a long flute, the uniformity of thickness, grain size, and purity of the CVD diamond coating, is one of the most vital indexes.…”

Section: Introductionmentioning

confidence: 99%

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Influence of the Heat Dissipation Mode of Long-Flute Cutting Tools on Temperature Distribution during HFCVD Diamond Films

et al. 2019

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The distribution of substrate temperature plays a decisive role on the uniformity of polycrystalline diamond films on cemented carbide tools with a long flute, prepared by a hot filament chemical vapor deposition (HFCVD). In this work, the heat dissipation mode at the bottom of tools is a focal point, and the finite volume method (FVM) is conducted to simulate and predict the temperature field of tools, with the various materials of the holder placed under the tools. The simulation results show that the thermal conductivity of the holder affects the temperature difference of the individual tools greatly, but only affects the temperature of different tools at the same XY plane slightly. Moreover, the ceramic holder can reduce the difference in temperature of an individual tool by 54%, compared to a copper one. Afterwards, the experiments of the deposition of diamond films is performed using the preferred ceramic holder. The diamond coatings on the different positions present a highly uniform distribution on their grain size, thickness, and quality.

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Section: Simulation Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of the Heat Dissipation Mode of Long-Flute Cutting Tools on Temperature Distribution during HFCVD Diamond Films

et al. 2019

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“…are there but among all. The LPCVD is very much popular and preferable technique to produce diamond, due to its excellent purity, uniformity and good step coverage [2]. The level of purity is very high in the LPCVD system as enough vacuum is maintained in the curved chamber (which is about 5-10 Torr).…”

Section: Introductionmentioning

confidence: 99%

Study of cutting force and tool wear during turning of aluminium with WC, PCD and HFCVD coated MCD tools

et al. 2020

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Enormous developmental work has been made in synthesis of metastable diamond by hot filament chemical vapor deposition (HFCVD) method. In this paper, micro-crystalline diamond (MCD) was deposited on WC–6 wt.% Co cutting tool inserts by HFCVD technique. The MCD coated tool was characterized by the scanning electron microscope (SEM), X-ray diffraction (XRD) and micro Raman spectroscopy (μ-RS). A comparison was made among the MCD tool, uncoated tungsten carbide (WC) tool and polycrystalline diamond (PCD) tool during the dry turning of rolled aluminum. The various major tests were conducted such as surface roughness, cutting force and tool wear, which were taken into consideration to establish a proper comparison among the advanced cutting tools. Surface roughness was measured during machining by Talysurf. The tool wear was studied by SEM after machining. The cutting forces were measured by Kistler 3D-dynamometer during the machining process. The test results indicate that, the CVD coated MCD tool and PCD tool produced almost similar results. But, the price of PCD tools are five times costlier than MCD tools. So, MCD tool would be a better alternative for machining of aluminium.

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Simulation Studies on Optimizing the Substrate Temperature Using a Novel Spiral Filament in Hot Filament Chemical Vapor Deposition of Diamond Thin Films

Panickar¹,

Sobhan²,

Chakravorti³

2023

Lecture Notes in Mechanical Engineering

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Simulation and experimental researches on HFCVD diamond film growth on small inner-hole surface of wire-drawing die with no filament through the hole

Cited by 16 publications

References 33 publications

Influence of the Heat Dissipation Mode of Long-Flute Cutting Tools on Temperature Distribution during HFCVD Diamond Films

Influence of the Heat Dissipation Mode of Long-Flute Cutting Tools on Temperature Distribution during HFCVD Diamond Films

Study of cutting force and tool wear during turning of aluminium with WC, PCD and HFCVD coated MCD tools

Simulation Studies on Optimizing the Substrate Temperature Using a Novel Spiral Filament in Hot Filament Chemical Vapor Deposition of Diamond Thin Films

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