Modeling Wear Process of Electroplated CBN Grinding Wheel

The wear of Cubic Boron Nitride (CBN) grinding wheel directly affects the workpiece surface integrity and tolerances. This paper summarizes a combined experimental-modeling framework for CBN grinding wheel life expectancy utilized in both cylindrical and surface grinding. The presented fatigue type model is based on grit pullout mechanism and the associated state of damage percolation. The unique grit-workpiece interaction process leads to a non-uniform spatial distribution of the grit wear. The life expectancy model can be described as a function of the process parameters, grinding wheel geometry and topology, workpiece material properties, etc. The developed modeling framework will greatly enhance the understanding of electroplated CBN grinding wheel wear mechanism.

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Experimental Characterization of Electroplated CBN Grinding Wheel Wear: Topology Evolution and Interfacial Toughness

Volume 1: Materials; Micro and Nano Technologies; Properties, Applications and Systems; Sustainable Manufacturing ◽

10.1115/msec2014-3961 ◽

2014 ◽

Cited By ~ 12

Author(s):

Tianyu Yu ◽

Ashraf F. Bastawros ◽

Abhijit Chandra

Keyword(s):

Grinding Wheel ◽

Activation Process ◽

Time To Failure ◽

Wheel Surface ◽

Wheel Wear ◽

Modeling Framework ◽

Topological Evolution ◽

Pull Out ◽

Topological Features ◽

Cbn Grinding Wheel

The wear rate of a grinding wheel directly affects the workpiece surface integrity and tolerances. This paper summarizes a combined experimental-modeling framework for life cycle prediction of an electroplated Cubic Boron Nitride (CBN) grinding wheel, typically utilized in nickel-based superalloy grinding. The paper presents an experimental framework to facilitate the formulation of a micro-mechanics based modeling framework. The presented work investigates the topological evolution of the grinding wheel surface and mechanisms of grit failure via depth profiling, digital microscopy and scanning electron microscopy. The results are used to elucidate the statistical evolution of the grinding wheel surface. Different modes of grit failure, including grit attritious wear, fracture and pull out haven been identified. The analysis of the surface topological features indicates a unique grit activation process, leading to a non-uniform spatial distribution of the grit wear. Additionally, single grit pull out experiment has been conducted to assess the residual strength of the grit-wheel interface and the associated state of damage percolation. The experimental results can be utilized in developing a life expectancy model for the CBN grinding wheel to assess the grit mean time to failure as well as grit surface topological evolution as a function of the process parameters.

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Simulation of Vitrified CBN Grinding Wheel Abrasive Wear Based on SPH

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.317-319.498 ◽

2011 ◽

Vol 317-319 ◽

pp. 498-502

Author(s):

Jing Qiang Zhang ◽

Peng Guan ◽

Chong Su ◽

Wan Shan Wang

Keyword(s):

Abrasive Wear ◽

Grinding Wheel ◽

Wheel Wear ◽

Wear Model ◽

Wear Process ◽

Grinding Wheel Wear ◽

Smoothed Particle ◽

Smoothed Particle Hydrodynamic ◽

Cbn Grinding Wheel ◽

Vitrified Cbn

This paper used spatial random cutting plane method for modeling the real irregular grain shapes, and method of smoothed particle hydrodynamic (SPH) was used to establish CBN grinding wheel abrasive wear model. In order to research the wear mechanism of CBN abrasive and the relationships between grinding parameters and grinding wheel wear, simulation of the wheel abrasive wear process was simulated by the LS-DYNA explicit dynamics. According to the results obtained by simulation of abrasive wear model which has the same law with the actual wear abrasive, it is has realistic instructive significance to the actual grinding process of vitrified CBN grinding wheel.

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The comparison of the results of the research concerning CBN grinding wheel topography parameters changing with the wheel wear in the context of the selection of important parameters

Mechanik ◽

10.17814/mechanik.2015.8-9.368 ◽

2015 ◽

pp. 713/190-713/193

Author(s):

Andrzej Kawalec ◽

Anna Bazan ◽

Marek Krok ◽

Ireneusz Piotr Chmielik

Keyword(s):

Grinding Wheel ◽

Wheel Wear ◽

Wheel Topography ◽

Grinding Wheel Topography ◽

Comparison Of The Results ◽

Cbn Grinding Wheel ◽

Selection Of

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A Study on the Evaluation Indexes of Wear Process of Electroplated CBN Grinding Wheel

Materials Science Forum ◽

10.4028/www.scientific.net/msf.940.72 ◽

2018 ◽

Vol 940 ◽

pp. 72-76

Author(s):

Fang Quan ◽

Zhi Tong Chen ◽

Qian Tong Li ◽

Huan Ye

Keyword(s):

Service Life ◽

Evaluation Index ◽

Grinding Wheel ◽

Analytic Hierarchy ◽

Wear Process ◽

Evaluation Indexes ◽

Nickel Based Superalloy ◽

And Control ◽

Service Life Cycle ◽

Cbn Grinding Wheel

The wear process of electroplated CBN grinding wheel is difficult to predict and control because of the lack of unified evaluation index of wear degree. This paper investigates the service life cycle of electroplated CBN grinding wheel in grinding of nickel-based superalloy GH4169. The evolution of topography of grinding wheel, diameter of grinding wheel, grinding force and surface roughness are tracked in the wear process. Using the analytic hierarchy process (AHP), the optimal evaluation index of service life of electroplated CBN grinding wheel is proposed.

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Grinding Vibration Detection Using a Neural Network

Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture ◽

10.1243/pime_proc_1996_210_127_02 ◽

1996 ◽

Vol 210 (4) ◽

pp. 349-352 ◽

Cited By ~ 9

Author(s):

X Chen ◽

W B Rowe ◽

Y Li ◽

B Mills

Keyword(s):

Neural Network ◽

Grinding Wheel ◽

Wheel Wear ◽

Objective Criterion ◽

Neural Network Approach ◽

Wear Process ◽

Vibration Detection ◽

The Neural Network ◽

Approach Method ◽

Band Pass

The amplitude of grinding vibration increases gradually throughout the grinding wheel wear process. In the meantime the predominant vibration frequency shifts in a region close to a natural frequency of the system. The complex time-varying pattern of vibrations makes it a problem to objectively identify when the grinding vibration becomes unacceptable and when the wheel should be redressed. A neural network approach method was proposed in this paper to identify the wheel life. The signal data were pre-treated by eight-band-pass filters, which covered the whole frequency range of the grinding chatter. These pre-treated data were used as the inputs to the neural network. By training the neural network, an objective criterion can be determined for the wheel redress life.

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The In-Process Dressing Characteristics of Vitrified Bonded CBN Grinding Wheels

Journal of Engineering for Gas Turbines and Power ◽

10.1115/1.2906679 ◽

1993 ◽

Vol 115 (1) ◽

pp. 200-204 ◽

Cited By ~ 4

Author(s):

J. Williams ◽

H. Yazdzik

Keyword(s):

Cubic Boron Nitride ◽

Matrix Material ◽

Carbon Steels ◽

Grinding Wheel ◽

Scanning Electron Micrographs ◽

Dimensional Tolerance ◽

Wear Process ◽

Cbn Wheel ◽

The Matrix ◽

Grinding Machine

When grinding carbon steels, creep-resistant materials, and other metals such a titanium, cubic boron nitride (CBN) has become recognized as the preferred choice over Al2O3 and SiC. The succes or failure of the grinding process with CBN lies in the mechanical dressing of the wheel because mechanical dressing is accompanied by very large stresses that distort the grinding wheel and deflect the grinding machine. One recent approach is to true the CBN wheel mechanically and then dress the wheel during the actual grinding manufacturing process. This work observes the dressing of vitrified bonded CBN during the actual like cycle in the production process of steel bearings. Scanning electron micrographs of CBN wheel surfaces are related to surface topography measurements of both wheel and bearing using a Tallysurf machine. In addition, the compositions of the wheel surfaces were checked using the SEM x-ray spectrography facilities. In-process dressing was determined to comprise three distinct stages: the primary or initial dressing, the secondary occurring during steady-state grinding, and finally the tertiary stage after which dimensional tolerance is lost. It was found that the life characteristics of the CBN wheel are quite different than current theories predict. Instead of the limitation of grinding being due to work material loading of the wheel and subsequent dulling of the grains, it was found that the CBN grains remain unchanged and a wear process occurs in the matrix material until the grains fall out and the wheels lose their dimensional tolerance.

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Effect of laser-assisted ultrasonic vibration dressing parameters of a cubic boron nitride grinding wheel on grinding force, surface quality, and particle morphology

REVIEWS ON ADVANCED MATERIALS SCIENCE ◽

10.1515/rams-2021-0054 ◽

2021 ◽

Vol 60 (1) ◽

pp. 691-701

Author(s):

Zhibo Yang ◽

Wang Sun ◽

Dongyu He ◽

Daocheng Han ◽

Wei Wang ◽

...

Keyword(s):

Boron Nitride ◽

Surface Quality ◽

Ultrasonic Vibration ◽

Process Parameters ◽

Cubic Boron Nitride ◽

Grinding Force ◽

Grinding Wheel ◽

Abrasive Particles ◽

Dressing Force ◽

Cbn Grinding Wheel

Abstract In this article, the laser-assisted ultrasonic vibration dressing technique was applied to the cubic boron nitride (CBN) grinding wheel to study the effect of various process parameters (namely, laser power, dressing depth, feed rate, and grinding wheel speed) on the grinding force, surface quality, and morphological evolution of CBN abrasive particles. The results showed that abrasive particles’ morphology mainly undergoes micro-crushing, local crushing, large-area crushing, macro-crushing, and other morphological changes. The dressing force can be effectively reduced by controlling the dressing process parameters. Besides, grinding tests are performed on the grinding wheel after dressing to reveal specimens’ surface quality. Excellent grinding characteristics and grinding quality of the grinding wheel were obtained by the proposed technique with the optimized process parameters.

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Precision Vertical Grinding of Cemented Tungsten Carbide Using CBN Wheels

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.303-306.2481 ◽

2013 ◽

Vol 303-306 ◽

pp. 2481-2484

Author(s):

Zhi Jian He ◽

Xu Kun Liang

Keyword(s):

Surface Roughness ◽

Boron Nitride ◽

Tungsten Carbide ◽

Cubic Boron Nitride ◽

Grinding Wheel ◽

Precision Grinding ◽

Grinding Parameters ◽

Cbn Grinding Wheel ◽

Important Significance ◽

Cemented Tungsten Carbide

A set of precision vertical grinding experiment on WC-CO cemented tungsten carbide materials was carried out using cubic boron nitride (CBN) grinding wheel. Different grinding parameters such as rotation speeds of workpiece, feed rates and grinding depths were employed during precision vertical grinding. Surface roughness was measured for studying the grinding charateristics of WC-CO cemented tungsten carbide in this removal mode. Optimal grinding parameters were obtained by changing the process parameters. The research results have an important significance to improve grinding quality and efficiency for precision grinding cemented tungsten carbide materials.

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An Investigation into Integrate the Surface Hardening with the Grinding Precision Finishing

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.407-408.560 ◽

2009 ◽

Vol 407-408 ◽

pp. 560-564

Author(s):

Ya Li Hou ◽

Chang He Li ◽

Yu Cheng Ding

Keyword(s):

Surface Hardening ◽

Cubic Boron Nitride ◽

Experimental Results ◽

Grinding Wheel ◽

Work Piece ◽

Surface Layers ◽

Treatment Technology ◽

Dry Grinding ◽

Cbn Grinding Wheel ◽

Grinding Hardening

The grinding hardening is a new surface heat treatment technology using grinding heat in which induce martensitic phase transformation in the surface layers of annealed or tempered steels to achieve surface strengthening processes and integrate the surface hardening process with the grinding precision machining. In the paper, a thermal model to describe this process has been presented from the thermal partition modeling and has been used to predict subsurface time–temperature profiles in the dry cylindrical grinding crankshaft using cubic boron nitride (CBN) wheels. The grinding hardening experiment was carried out in precision cylindrical grinder M1420E, using work-piece material 42CrMo4 and CBN grinding wheel under dry grinding condition. The experimental results showed the theoretical model is agreement with experimental results and the model can well forecast the grinding hardening depths.

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