Precision and micro CVD diamond-coated grinding tools

Gäbler, Jan; Pleger, Sven

doi:10.1016/j.ijmachtools.2009.10.008

Cited by 70 publications

(22 citation statements)

References 10 publications

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“…Two types of micro-grinding tools have been normally applied so far, one is coated and another is solid. Diamond coated tools were used to produce high quality surfaces in optical glasses [4,9]. On the other hand, different shaped polycrystalline diamond solid tools e. g. square shape, D-shape, circular shape were applied for micro-grinding of BK-7 glass to produce different levels of surface finish [5].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Tool Wear and Grinding Forces During BK-7 Glass Micro-grinding with Modified PCD Tool

Pratap

Sahoo

Patra

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. This study focuses on the improvement in grinding performance of BK-7 glass using polycrystalline diamond micro-tool. Micro-tools are modified using wire EDM and performance of modified tools is compared with that of as received tool. Tool wear of different types of tools are observed. To quantify the tool wear, a method based on weight loss of tool is introduced in this study. Modified tools significantly reduce tool wear in comparison to the normal tool. Grinding forces increase with machining time due to tool wear. However, modified tools produce lesser forces thus can improve life of the PCD micro-grinding tool.

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Section: Introductionmentioning

confidence: 99%

Experimental Study of Tool Wear and Grinding Forces During BK-7 Glass Micro-grinding with Modified PCD Tool

Pratap

Sahoo

Patra

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

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show abstract

“…Recently, several researchers focused on the development and application of such micro pencil grinding tools [5][6][7][8]. With a proper combination of workpiece material, tool, and process parameters, excellent structure quality and accuracy could be achieved.…”

Section: Introductionmentioning

confidence: 99%

Micro grinding with ultra small micro pencil grinding tools using an integrated machine tool

Aurich

Carrella

Walk³

2015

CIRP Annals

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“…The chemical vapor deposition (CVD) diamond¯lm has been successfully utilized in a variety of mechanical components, such as cutting tools, [1][2][3][4][5] drawing dies, 6,7 mechanical seals, [8][9][10] grinding tools, 11 etc. Of these applications, however, depositing high-quality and uniform diamond¯lm in a large-area substrate is still a challenge due to the di±culty of generating highly consistent and uniform growth environment on a large area substrate surface, especially for those substrates with complex 3D-shaped surface, like drills or mills, etc.…”

Section: Introductionmentioning

confidence: 99%

“…In available literatures, a variety of tailored HFCVD setups have been designed for substrates with various particular geometries, such as the spiral coil¯lament arrangement for drills, 13,14 the vertically arranged¯laments for depositing diamond coating on peripheral grinding wheels, 11 the mouse-cage¯lament arrangement for drawing dies. 6,7 Besides, the mathematical simulation is also a preferable method to be adopted to optimize the HFCVD setup due to its superior e±ciency and convenience to the experimental method, as well as the ability of exploring both the individual and the combining e®ect of setup parameters on the generated growth environment on the substrate surface.…”

Section: Introductionmentioning

confidence: 99%

The Effect of the Gas Inlet on the Fluid Field During Fabricating HFCVD Diamond-Coated Cutting Tools

Shen

Chen

Cheng³

et al. 2014

Surf. Rev. Lett.

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In the present study, the°uid¯eld in a process of fabricating diamond coated cutting tools using the hot¯lament chemical vapor deposition (HFCVD) method is investigated using the¯nite volume method (FVM), in which the e®ects of the inlet height, gas initial velocity, inlet radius and arrangement are illustrated in terms of the gas velocity magnitude and vector distribution near thē laments and the°ute surface of cutting tools. In the simulations, the coupling e®ect of the temperature and the gas¯eld is also considered by simultaneously calculating the temperature distribution. The simulation results suggest that either shortening the distance between the gas inlet and laments, or increasing the gas initial velocity is helpful for the reactive gas arriving at¯laments surface and being dissociated. Furthermore, increasing the inlet area is able to signi¯cantly increase the velocity of gas¯eld around the¯laments, as well as produce a much more uniform gas velocitȳ eld. Based on this conclusion, two novel multi-inlets setups are proposed to further improve the generated gas¯eld and the simulation results show that the most superior gas¯eld can be achieved with the one including 8 larger central inlets and 24 smaller outskirt inlets. Finally, an actual deposition experiment is carried out and its result indicates that adopting the optimized such inlet arrangement could generate a highly uniform and homogeneous growth environment on whole deposition area.

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Precision and micro CVD diamond-coated grinding tools

Cited by 70 publications

References 10 publications

Experimental Study of Tool Wear and Grinding Forces During BK-7 Glass Micro-grinding with Modified PCD Tool

Experimental Study of Tool Wear and Grinding Forces During BK-7 Glass Micro-grinding with Modified PCD Tool

Micro grinding with ultra small micro pencil grinding tools using an integrated machine tool

The Effect of the Gas Inlet on the Fluid Field During Fabricating HFCVD Diamond-Coated Cutting Tools

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