Simulation and experiment of cutting characteristics for single cBN-WC-10Co fiber

Mao, Cong; Lu, Ji; Zhao, Zhihang; Yin, Lairong; Hu, Yongle; Bi, Zhuming

doi:10.1016/j.precisioneng.2017.12.001

Cited by 28 publications

(5 citation statements)

References 28 publications

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“…However, C/C-SiC composite material belongs to hardto-cut material. As these composites have strong anisotropy and elevated mechanical strength, it is difficult to control the surface integrity during processing [11][12][13][14]. Therefore, the improvement of the processing quality of C/C-SiC composite material has become difficult and hot research.…”

Section: Smentioning

confidence: 99%

Influence of the fiber orientation on 3D C/C–SiC composite material and its formation mechanism of the machining surface

Long

Shi

et al. 2021

Int J Adv Manuf Technol

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Carbon/Carbon (C/C)-SiC composite materials attained much attention due to its unique properties like immense thermal conductivity, high corrosion, and abrasive resistance. Few scholars have systematically studied the grinding machinability of 3D C/C-SiC composite material. In this paper, the grinding experiment of 3D C/C-SiC composite material was carried out with a resin-bonded diamond grinding wheel. The effect of machining conditions on the grinding force, micromorphology, surface quality, and residual stress was studied, and the material removal mechanism was analyzed in-depth aimed at the three typical fiber orientations. The result shows that the surface roughness of different fiber areas follows the order: 90° fiber > 0° fiber > Normal fiber. The fiber's orientation showed a significant effect on the mechanism of material removal. The residual thermal stress of C/C-SiC composite material increases from 32.25 to 207.43 MPa during the grinding process. Polishing the ground surface not only can remove the crack layer and residual stress layer but also can introduce residual compressive stress layer, which can effectively enhance the material strength. The 3D

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Section: Smentioning

confidence: 99%

Influence of the fiber orientation on 3D C/C–SiC composite material and its formation mechanism of the machining surface

Long

Shi

et al. 2021

Int J Adv Manuf Technol

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“…For instance, the performance of bearing sliding surfaces is improved by employing microstructured surfaces. [1][2][3] The extrahydrodynamic pressure and trapping microscopic particles within the micro-dimples significantly reduces the wear and friction between the sliding surfaces. Meanwhile, the cooling effectiveness improves significantly under the same heated work conditions, and the adhesive resistance of cutting tools is promoted by the formation of micro/nanopatterns.…”

Section: Introductionmentioning

confidence: 99%

Effects of the grinding conditions on geometry of microstructured surfaces fabricated via designed precision grinding

Monier

Guo

Zhao

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part B:

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Precision grinding is a promising method for machining microstructured surfaces. Controlling microstructured surface geometries provides interesting insights into the optimisation of their usage based on the application fields. This requires an understanding of the effects of the factors influencing the grinding process. The effects of the designed process parameters on the geometries of microstructured surfaces machined using precision grinding is investigated herein. The investigated parameters include the velocity ratio between the workpiece feed rate and wheel cutting velocity, in addition to the grinding depth of cut. First, a mathematical model is developed to correlate the designed grinding parameters and the resultant geometry of the ground microstructured surfaces; furthermore, the geometrical parameters of the surface microstructures are defined. Subsequently, an algorithm and a simulation method are used to illustrate the change in the microstructure geometries with varying operating parameters. Subsequently, precision grinding experiments under various conditions are performed on the surfaces of TC4 titanium alloys for experimental investigations. The obtained microstructure geometries are analysed and compared with those predicted via simulation. The results confirmed the accuracy and ability of proposed strategy in designing and machining the microstructured surfaces with controlled geometry via precision grinding. Finally, the behaviour of the geometrical parameters of the microstructured surfaces based on the investigated operating parameters is discussed.

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“…Therefore, it has been an important research topic in the manufacturing field about how to achieve high-efficiency, high-precision and high-quality dressing of super-abrasive grinding wheels [2]. To achieve this goal, the most common methods used by researchers in recent years include mechanical dressing (MD) method [9][10][11], electrical discharge dressing (EDD) method [12][13][14], electrolytic in-process dressing (ELID) method [15] and Pulsed laser dressing (PLD) method [16]. However, the dressing mechanics, specifically the grain fracture evolution mechanism and brittle fracture mechanics, have not been addressed in a detailed fashion, which further restrict people's understanding about the influence of grain fracture on the accuracy, quality and efficiency of dressing [17].…”

Section: Introductionmentioning

confidence: 99%

Peridynamic Simulation to Fracture Mechanism of CBN Grain in the Honing Wheel Dressing Process

et al. 2021

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Regularly dressing of CBN honing wheel is an effective way to keep its sharpness and correct geometry during honing process. This study aims to understand the fracture mechanism of single CBN grain in the dressing process of honing wheel. The honing wheel dressing process was simplified into the dressing process of grinding wheel, and the bond-based Peridynamic method considering bond rotation effect was developed to investigate the progressive fracture evolution, stress characteristics, and fracture modes of CBN grains in this process. It was found that fracture evolution of CBN grains mainly underwent four stages: elastic deformation, damage initiation, crack formation, and macro fracture. In addition, the fracture initiation and propagation were mainly determined by the tensile and shear stress, where the former led to mode I fractures and the latter led to mode II fractures. The propagation of mode I fractures was stable while the propagation of mode II fracture was unstable. The results show that the Peridynamic approach has great potential to predict the fracture mechanism of CBN grain in the dressing process of honing and grinding wheels.

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Simulation and experiment of cutting characteristics for single cBN-WC-10Co fiber

Cited by 28 publications

References 28 publications

Influence of the fiber orientation on 3D C/C–SiC composite material and its formation mechanism of the machining surface

Influence of the fiber orientation on 3D C/C–SiC composite material and its formation mechanism of the machining surface

Effects of the grinding conditions on geometry of microstructured surfaces fabricated via designed precision grinding

Peridynamic Simulation to Fracture Mechanism of CBN Grain in the Honing Wheel Dressing Process

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