On the grinding performance of metal-bonded aggregated cBN grinding wheels based on open-pore structures

Manufacturing of vitrified bond CBN wheels for internal precision grinding of the air-conditioner compressor piston hole is still big challenge to all of the domestic manufacturers. Recently, by choosing pre-melting mixed CBN abrasives and a proper sintering process, a cost-effective method was conceived to produce grinding wheels of comparative quality. The grinding performance of wheels was evaluated with a series of internal precision grinding of compressor piston hole. Experimental results show that the vitrified bond CBN grinding wheel produced by this method has better grinding performance, and can be substitute to the same type of grinding wheels imported. But the manufacturing cost is only 60% of the wheel imported according to estimation.

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Enhanced grinding performance by means of patterned grinding wheels

The International Journal of Advanced Manufacturing Technology ◽

10.1007/s00170-014-6579-8 ◽

2014 ◽

Vol 77 (9-12) ◽

pp. 1935-1941 ◽

Cited By ~ 23

Author(s):

Berend Denkena ◽

Thilo Grove ◽

Tim Göttsching ◽

Eraldo Jannone da Silva ◽

Reginaldo Teixeira Coelho ◽

...

Keyword(s):

Grinding Wheels ◽

Grinding Performance

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Active Cutting Edges in Vitrified CBN Grinding Wheels

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.304-305.1 ◽

2006 ◽

Vol 304-305 ◽

pp. 1-7 ◽

Cited By ~ 2

Author(s):

R. Cai ◽

H.S. Qi ◽

Guang Qi Cai

Keyword(s):

Chip Thickness ◽

Edge Density ◽

Grinding Wheels ◽

Grinding Performance ◽

On Chip ◽

Vitrified Cbn

Wheel structure has a critical influence on grinding performance especially active cuttingedge density. Experiments were carried out to find out the relationshipbetween active and staticcutting edge density. It was found that there are many more active cutting edges in grinding thanexpected based on chip thickness formulae mainly due to wheel deflection in grinding.

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Development on Micro Precision Truing Method of ELID-Grinding Wheel (2nd Report: Application to Edge Sharpening of Large Wheel)

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.291-292.213 ◽

2005 ◽

Vol 291-292 ◽

pp. 213-220 ◽

Cited By ~ 1

Author(s):

Shao Hui Yin ◽

Wei Min Lin ◽

Yoshihiro Uehara ◽

Shinya MORITA ◽

Hitoshi Ohmori ◽

...

Keyword(s):

Surface Quality ◽

Grinding Wheel ◽

Grinding Process ◽

Grinding Wheels ◽

Elid Grinding ◽

Diamond Grinding ◽

Grinding Performance ◽

Profile Accuracy ◽

Large Wheel ◽

Edge Sharpening

In V-groove ELID grinding process, to achieve optimal grinding performance and satisfactory surface quality and profile accuracy, metal bonded diamond grinding wheels need to be carefully sharpened. In this paper, we applied the proposed new micro-truing method consisting of electro-discharge truing and electrolysis-assisted mechanical truing to sharpen the edge of large grinding wheels. The minimum wheel tip radiuses of 6.3 and 8.5µm were achieved for the #4000 and #20000 grinding wheels. The truing mechanisms and sharpening performance are also discussed.

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The Development of Nanocrystalline CBN for Enhanced Superalloy Grinding Performance

Journal of Manufacturing Science and Engineering ◽

10.1115/1.2836547 ◽

1997 ◽

Vol 119 (1) ◽

pp. 110-117 ◽

Cited By ~ 17

Author(s):

Y. Ichida ◽

K. Kishi

Keyword(s):

Wear Rate ◽

Grinding Wheel ◽

Grinding Wheels ◽

Wear Rates ◽

Grinding Performance ◽

Wide Range ◽

Edge Distribution ◽

Order Of Magnitude ◽

Life Analysis ◽

Magnitude Increase

CBN grinding wheels are increasingly used on a wide range of engineering materials. This paper compares the grinding performance of monocrystalline (M-CBN) and polycrystalline (P-CBN) abrasives with a newly developed nanocrystalline (N-CBN) abrasive, when grinding nickel-based superalloys. The N-CBN grits possess average crystal grain diameters less than 1 μm compared to average primary grain diameters of 2.3 μm for P-CBN. It was found that the nanocrystalline CBN grits possess higher fracture strength which give reduced wear rates and yield an order of magnitude increase in grinding wheel life. Analysis of the cutting edge distribution shows that the reduced wear rate of N-CBN is due to the predominance of a micro-fracturing mode of abrasive wear. The size of this micro-fracturing is considerably smaller in N-CBN than in P-CBN.

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Effect of Novel Grinding Wheels on Grinding Performance

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.405-408.3302 ◽

2013 ◽

Vol 405-408 ◽

pp. 3302-3306

Author(s):

Ming Yi Tsai ◽

Shi Xing Jian ◽

J. H. Chiang

Keyword(s):

Surface Roughness ◽

Pure Water ◽

Minimum Quantity Lubrication ◽

Grinding Wheel ◽

Grinding Temperature ◽

Grinding Wheels ◽

Wheel Wear ◽

Grinding Performance ◽

Conventional Grinding ◽

Removal Processes

Grinding, a technique for removing abrasive materials, is a chip-removal process that uses an individual abrasive grain as the cutting tool. Abrasive material removal processes can be very challenging owing to the high power requirements and the resulting high temperatures, especially at the workpiece-wheel interface. This paper presents a novel system that uses graphite particles impregnated in an aluminum oxide matrix to form a grinding wheel. This study specifically investigated grinding wheels with a graphite content of 0.5 wt%. The new grinding wheel was compared with conventional grinding wheels by comparing the factors of grinding performance, such as surface roughness, morphology, wheel wear ratio, grinding temperature, and grinding forces, when the wheels were used under two different coolant strategiesdry and with minimum quantity lubrication (MQL) using pure water. This study found that there is a considerable improvement in the grinding performance using graphite-impregnated grinding wheels over the performance obtained using conventional grinding wheels. The use of 0.5 wt% graphite provided better surface roughness and topography, lower grinding temperature, and decreased force; in addition, wheel consumption was lower, resulting in extended wheel life.

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Laser textured Ti-6Al-4V surfaces and grinding performance evaluation using CBN grinding wheels

Optics & Laser Technology ◽

10.1016/j.optlastec.2018.08.027 ◽

2019 ◽

Vol 109 ◽

pp. 389-400 ◽

Cited By ~ 4

Author(s):

Xiaohong Zhang ◽

Jie Jiang ◽

Si Li ◽

Dongdong Wen

Keyword(s):

Performance Evaluation ◽

Grinding Wheels ◽

Grinding Performance

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A Novel Optimization Design Method of Form Grinding Wheel for Screw Rotor

Applied Sciences ◽

10.3390/app9235079 ◽

2019 ◽

Vol 9 (23) ◽

pp. 5079 ◽

Cited By ~ 2

Author(s):

Zongmin Liu ◽

Qian Tang ◽

Ning Liu ◽

Pinghua Liang ◽

Wei Liu

Keyword(s):

Optimization Design ◽

Design Method ◽

Empirical Method ◽

Grinding Wheel ◽

Grinding Wheels ◽

Grinding Performance ◽

Form Grinding ◽

Screw Rotor ◽

Screw Rotors ◽

Profile Accuracy

The profile accuracy of screw rotors plays a vital role in stabilizing the meshing operation between mated rotors. Such stability can minimize the vibration and noise, as well as improve the sealing performance and wear resistance. This is the main reason why form grinding is extensively applied as a finishing process to maintain high screw rotor profile accuracy. Since the installation parameters for form grinding wheels affect both the grinding wheel profile accuracy and grinding performance, it is essential to obtain reasonable installation parameters to guarantee the high precision and good grinding performance of form grinding wheels. In this paper, a novel optimization design method for form grinding wheels for screw rotors has been proposed. For the first time, the relationship between the grinding wheel installation parameters and profile accuracy is established to evaluate the grinding performance. A parameterized program has been designed based on space engagement theory. The characteristics of the contact line and profile features of form grinding wheels under different installation parameters have been investigated. Then, the proposed method was employed to select the correct range of installation parameters. To validate the proposed method, a set of experiments, including the manufacture and measurement of several screw rotors, was carried out. The results reveal that the precision of the screw profile is significantly improved compared with the empirical method, thus showing the effectiveness of the proposed method.

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