Investigation on the grinding properties of high thermal conductivity vitrified bond CBN grinding wheel for titanium alloy

Shi, Ying; Chen, Liaoyuan; Xin, Hongsheng; Yu, Tianbiao; Sun, ZhengMing

doi:10.1007/s00170-020-05134-y

Cited by 11 publications

(3 citation statements)

References 34 publications

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“…2,3 Though these functional composite parts are prepared to their near net shape using various fibre layup and moulding techniques, further surface machining is inevitable in many of the situations to meet dimensional/ geometric tolerances and surface quality requirements during its assembly/end-use. 4,5 Conventional surface grinding, owing to the use of fine abrasive cutting edges, has been reported as a possible methodology for such surface machining requirements. 6 However, owing to anisotropic, inhomogeneous and high abrasive characteristics of FRCs, especially for carbon fibre, traditional grinding of these composites is remarkably challenging.…”

Section: Introductionmentioning

confidence: 99%

Eccentric sleeve grinding for thermal management and dry grinding of carbon fibre reinforced composites

Handa

Sooraj

2022

Journal of Reinforced Plastics and Composites

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Precision machining of Fibre Reinforced Polymer (FRP) Composites needs to be explored further while addressing advanced engineering applications. However, force and temperature-driven damages while machining FRP composites, due to the non-homogenous and low thermal conducting behaviour of fibre-matrix interfaces, place the barrier in this direction. Surface machining using abrasive wheels has been projected as a promising option for fine removal of material in FRPs. However, conventional dry grinding strategy exhibited high grinding force due to continuous interaction of abrasive cutting edges, leading to accumulation of heat at the grinding interface. As the cutting action is continuous, heat dissipation also becomes difficult in this situation. Temperature-driven damages on composite matrix and subsequent failure of reinforced fibres were serious concerns in this case. Although attempted in some situations, usage of cutting fluids was not recommended fully due to wetting effects and agglomeration of swarf that hinder the grinding efficiency. Eccentric Sleeve Grinding (ESG), using an intermittent-progressive cuttings scheme, is proposed in this work as a potential dry grinding strategy for FRPs. Control of heat accumulation through progressive cutting strategy and enhancement of heat dissipation through intermittency in cutting cycle appears to be the unique characteristics of ESG. Experimentation of ESG on carbon fibre reinforced composite samples showed promising grinding temperature reduction, which was justified through a significant reduction in grinding forces, surface defects and roughness.

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Section: Introductionmentioning

confidence: 99%

Eccentric sleeve grinding for thermal management and dry grinding of carbon fibre reinforced composites

Handa

Sooraj

2022

Journal of Reinforced Plastics and Composites

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“…It was found that feed rate, radial grinding depth and cooling conditions had significant effects on the roughness, and wet grinding produced less defects. Shi et al [12] studied a new high thermal conductivity vitrified bond CBN grinding wheel to improve grinding temperature, grinding force and processing surface quality. Dai et al [13] studied the effect of rotation speed on grinding performance, and performed high-speed grinding experiments with ceramic CBN wheel.…”

Section: Introductionmentioning

confidence: 99%

Theoretical modeling and experimental research on the depth of radial material removal for flexible grinding

Zheng

Chen

Zhang

et al. 2021

Int J Adv Manuf Technol

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Abrasive belt flap wheel has large elastic deformation, which can better fit the surface of aero-engine blades. Reasonable control of the depth of radial material removal can effectively improve the grinding efficiency and profile accuracy of the blade surface. The depth of radial material removal for flexible grinding was studied through the process parameters in this article. First, the material removal rate model was established based on Hertz elastic contact theory and Preston equation. Then, according to the principle of equivalent material removal volume, a noval approach to determine the depth of radial material removal was proposed. Finally, the experiments for both plane and surface were implemented on a vertical machining center. The results indicate that the proposed method can improve the accuracy and consistency for flexible grinding.

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“…In relation to the planar cutting blades, one of the proposed solutions is the effective regeneration of the tool (obtaining its original shape and recreating the correct inclination angles of cutting edges). An original proposal of this type of regeneration, using a precise grinding process by grinding wheels (regular boron nitride (cBN) [ 23 , 24 , 25 ] abrasive grains bonded by ceramic binder) attached to an electro-spindle of the five-axis CNC (computerized numerical control) grinding machine, was presented by Zieliński et al [ 26 , 27 ]. In case of realization of this process, special attention should be paid to thermal conditions in the grinding wheel with the machined surface contact zone.…”

Section: Introductionmentioning

confidence: 99%

The Role of Observation–Measurement Methods in the Surface Characterization of X39Cr13 Stainless-Steel Cutting Blades Used in the Fish Processing Industry

Kapłonek

Nadolny

Zieliński³

et al. 2020

Materials

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In the modern fish processing industry, flat fishes play an important role. They are processed into a final product in the form of a fillet during the skinning operation, which is carried out on machines operating in automated production lines. These machines are usually equipped with a single planar cutting blade or a few of such blades. The high-efficiency skinning and industrial conditions cause rapid wear of the cutting edge of the blade, which is detrimental to the quality of the final product. One of the forms of renewing the cutting ability of these types of tools is the regeneration carried out with the use of precise traverse surface grinding. The results of this process must be carefully verified for determining its correctness and possible optimization of its parameters. The main goal of this article was to characterize the usefulness of a number of observational and measuring methods to evaluate the results of the technical blade regeneration process. In this work, a number of contemporary observation–measurement methods such as optical microscopy (OM), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), optical profilometry (OP), and angle-resolved scattering (ARS), supported by image processing and analysis techniques, were analyzed. The authors focused on presenting the role of the abovementioned methods in the surface characterization of planar cutting blades made of X39Cr13 chromium martensitic stainless steel before and after the technological operation of flat-fish skinning. Additionally, the surface condition after the regeneration process carried out using the five-axis CNC (computerized numerical control) grinding machine was also assessed. Numerous results of surface observations, elemental composition microanalysis, high-accuracy surface microgeometry measurements, and quantitative and qualitative analysis confirming the possibility of using the proposed methods in the presented applications are presented.

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Investigation on the grinding properties of high thermal conductivity vitrified bond CBN grinding wheel for titanium alloy

Cited by 11 publications

References 34 publications

Eccentric sleeve grinding for thermal management and dry grinding of carbon fibre reinforced composites

Eccentric sleeve grinding for thermal management and dry grinding of carbon fibre reinforced composites

Theoretical modeling and experimental research on the depth of radial material removal for flexible grinding

The Role of Observation–Measurement Methods in the Surface Characterization of X39Cr13 Stainless-Steel Cutting Blades Used in the Fish Processing Industry

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