scholarly journals Grinding Performance Integrated Experimental Evaluation on Alumina Ceramics with Leaf-Vein Bionic Grinding Wheel

2022 ◽  
Author(s):  
Chao Li ◽  
Jia Duan ◽  
Zhang Xiaohong ◽  
Zhaoyao Shi ◽  
Guangzhi Yuchi ◽  
...  
Keyword(s):  
Heat Dissipation ◽  
Positive Impact ◽  
Morphological Characteristics ◽  
Ceramic Materials ◽  
Grinding Force ◽  
Grinding Wheel ◽  
Alumina Ceramics ◽  
Grinding Wheels ◽  
Leaf Vein ◽  
Grinding Performance

Abstract In order to enhance the grinding performance of alumina ceramic materials, the surface of the grinding wheels are ablated by laser radiation before grinding, and the three types of leaf-vein bionic grinding wheels with different micro-groove pitches are formed to compare the grinding experiments with normal grinding wheels. The grinding forces and surface roughness were gauged and the morphological characteristics of ground workpiece surfaces were studied. The results showed that with the increase of groove pitch, the normal grinding force was reduced by 9.6-63%, while the tangential grinding force is reduced by 8.3-42%. The groove can promote the flow of coolant, accelerate the heat dissipation and chip removal in the grinding area, reduce the damage of the workpiece and the wear of the grinding wheel, so the vein bionic grinding wheel had more tremendous processing advantages. Among the four kinds of grinding wheels, the leaf-vein bionic grinding wheel with groove pitch equal to 8mm obtained the best grinding effect. The vein-shaped groove had a positive impact on the grinding process.

Development of Vitrified Bond CBN Wheel for Internal Precision Grinding of the Air-Conditioner Compressor Piston Hole

2006 ◽  
Vol 304-305 ◽  
pp. 29-32 ◽  
Author(s):  
Hang Gao ◽  
Y.G. Zheng ◽  
W.G. Liu ◽  
Jian Hui Li
Keyword(s):  
Cost Effective ◽  
Grinding Wheel ◽  
Manufacturing Cost ◽  
Air Conditioner ◽  
Grinding Wheels ◽  
Precision Grinding ◽  
Grinding Performance ◽  
Compressor Piston ◽  
Vitrified Bond ◽  
Cbn Grinding Wheel

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.

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

2005 ◽  
Vol 291-292 ◽  
pp. 213-220 ◽  
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.

Evaluation of Grinding Performance by Mechanical Properties of Super Abrasive Wheel - Evaluation of Grade by Grinding Force

2015 ◽  
Vol 656-657 ◽  
pp. 266-270 ◽  
Author(s):  
Takekazu Sawa ◽  
Naohiro Nishikawa ◽  
Yasushi Ikuse
Keyword(s):  
Mechanical Properties ◽  
Evaluation Method ◽  
Bending Strength ◽  
Diamond Wheel ◽  
Grinding Force ◽  
Grinding Wheel ◽  
Abrasive Wheel ◽  
Grinding Performance ◽  
Relationship Of ◽  
The Relationship

There is the grade as one of the selection criteria of a grinding wheel like WA whetstone or GC whetstone. The grade of grinding wheel is defined as an index which shows the strength of connection of a grain and a grain, and is usually estimated by bending strength. There are many papers about the relationship between the grade of a grinding wheel and the grinding performance. And, the relationship between the grade of a grinding wheel and the grinding performance is almost clear. Also, the relationship between mechanical properties of a grinding wheel and the grade is also clear. On the other hand, since the grain layer of a super abrasive grinding wheel is thin, it is difficult to apply the conventional evaluation test of the grade. And, the evaluation method of the grade which can be adapted the super abrasive grinding wheel is not established. In addition, since the grade of a super abrasive grinding wheel is a manufacture manufacturer's original standard, there is a minute difference by manufacturer. The super abrasive grinding wheel as well as the grinding wheel is conjectured that the grade influences the grinding performance. Namely, it is important to relate the grade and the mechanical properties of a grain layer. However, researches which relate the grade, the grinding performance and the mechanical properties of a super abrasive grinding wheel are not done so far. Therefore, this study examined the relationship between the mechanical properties of a grain layer of a super abrasive grinding wheel and the grade, the grinding performance. The final objective of this study is to evaluate the grinding performance from mechanical properties of a grain layer of a super abrasive grinding wheel. The purpose of this report is to clarify relationship between the grade and the grinding force in a resinoid bond diamond wheel. The specific experiment procedure is as follows. When carrying out surface grinding of the diamond sticks using a grinding wheel, the relationship of the grade and the grinding force was clarified. And based on the knowledge acquired in this experiment, relationship between the grade of a super abrasive grinding wheel and the grinding force was considered. As the results, it confirmed that the grade of a resinoid bond diamond wheel could be evaluated by the grinding force.

The Development of Nanocrystalline CBN for Enhanced Superalloy Grinding Performance

1997 ◽  
Vol 119 (1) ◽  
pp. 110-117 ◽  
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.

Effect of Novel Grinding Wheels on Grinding Performance

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.

Improved grinding performance of zirconia ceramic using an innovative biomimetic fractal-branched grinding wheel inspired by leaf vein

2020 ◽  
Vol 46 (14) ◽  
pp. 22954-22963
Author(s):  
Xiaohong Zhang ◽  
Zhuoran Wang ◽  
Zhaoyao Shi ◽  
Zejian Shi ◽  
Ruyi Jiang ◽  
...  
Keyword(s):  
Zirconia Ceramic ◽  
Grinding Wheel ◽  
Leaf Vein ◽  
Grinding Performance

Contact Stiffness of Grinding Wheels due to the Difference of Table Feed Rate

2009 ◽  
Vol 76-78 ◽  
pp. 137-142 ◽  
Author(s):  
Takazo Yamada ◽  
Hwa Soo Lee ◽  
Kohichi Miura
Keyword(s):  
Stationary State ◽  
Feed Rate ◽  
Contact Stiffness ◽  
Grinding Force ◽  
Grinding Wheel ◽  
Grinding Wheels ◽  
Abrasive Grain ◽  
Residual Stock ◽  
The Difference ◽  
Stock Removal

Usually, the contact stiffness between a grinding wheel and a workpiece has been measured in a stationary state. So, in this study, the contact stiffness under the grinding operation is measured under different table feed rate of the workpiece. From this result, it is known that, while the contact stiffness in the stationary state increases with the increase of the contact force, the contact stiffness under the grinding operation decreases with the increase of the normal grinding force relating the table feed rate. In this paper, since the number of contacting abrasive grain with workpiece is constant irrespective of the table feed rate, and the residual stock removal of workpiece is varied by the table feed rate, it is clarified that the contact stiffness under the grinding operation differs from the contact stiffness measured by the stationary state.

scholarly journals Influence of grinding wheel velocity on the wear of electroplated cBN grinding wheel

Mechanik ◽  
2017 ◽  
Vol 90 (8-9) ◽  
pp. 690-692 ◽  
Author(s):  
Andrzej Kawalec ◽  
Anna Bazan ◽  
Marek Krok
Keyword(s):  
Active Surface ◽  
Grinding Force ◽  
Grinding Wheel ◽  
Grinding Wheels ◽  
Force Components ◽  
Cbn Grinding Wheel

Presented are the results of research on changes of the grinding force components and selected topography parameters of grinding wheel active surface during grinding wheel life. Electroplated cBN grinding wheels working with different rotation speeds were examined.

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

2019 ◽  
Vol 9 (23) ◽  
pp. 5079 ◽  
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.

Grinding force modeling and experimental verification of rail grinding

2020 ◽  
Vol 234 (8) ◽  
pp. 1254-1264
Author(s):  
Hao-Hao Ding ◽  
Yong-Chao Han ◽  
Kun Zhou ◽  
Yun-Hua Huang ◽  
Lu-Bing Shi ◽  
...  
Keyword(s):  
Grinding Force ◽  
Least Square ◽  
Experimental Results ◽  
Grinding Wheel ◽  
Grinding Wheels ◽  
Grinding Forces ◽  
Grinding Processes ◽  
Force Modeling ◽  
Friction Testing ◽  
Rail Grinding

Many factors could affect the grinding force during rail grinding processes. Therefore, the grinding force modeling is necessary for predicting the grinding forces under different rail grinding parameter conditions. In this study, 3D models of grinding wheels were constructed based on the surface topographies of real grinding wheels. By means of simulation of rail grinding processes using the DEFORM-3D, the influences of grinding parameters on the grinding forces were explored. Furthermore, in order to verify the simulation results, rail grinding experiments were conducted using a rail grinding friction testing apparatus. Both simulation and experimental results showed that the grinding force increased with the grinding pressure and the granularity of grinding wheel and decreased with the rotational speed of the grinding wheel. A correction factor ks of 0.894 was obtained using the least square method to reduce the error between the simulation and experimental results from 10.22 to 4.42%.

Sign in / Sign up

Export Citation Format

Share Document