Journal articles: 'Grinding test'

1

Choi, Young Jae, Kyung Hee Park, Yun Hyuck Hong, Kyeong Tae Kim, Seok Woo Lee, and Hon Jong Choi. "Design of Ultrasonic Horn for Grinding Using Finite Element Method." Advanced Materials Research 565 (September 2012): 135–41. http://dx.doi.org/10.4028/www.scientific.net/amr.565.135.

Full text

Abstract:

In this paper, a ultrasonic horn, which can vibrate longitudinally with a frequency of 20㎑, was designed using finite element method (FEM). And the ultrasonic horn was fabricated for ultrasonic assisted grinding. To evaluate machining performance of the fabricated ultrasonic horn, grinding test was conducted on alumina ceramic (Al2O3). In the grinding test, grinding forces was measured and compared between the conventional grinding and the ultrasonic assisted grinding. The results showed that the grinding force in the ultrasonic grinding was lowered than the conventional grindign by 3~20%.

APA, Harvard, Vancouver, ISO, and other styles

2

Ghosh, S., A. B. Chattopadhyay, and S. Paul. "Study of grinding mechanics by single grit grinding test." International Journal of Precision Technology 1, no. 3/4 (2010): 356. http://dx.doi.org/10.1504/ijptech.2010.031663.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Liu, Peng-Zhan, Wen-Jun Zou, Jin Peng, Xu-Dong Song, and Fu-Ren Xiao. "Designed a Passive Grinding Test Machine to Simulate Passive Grinding Process." Processes 9, no. 8 (July 29, 2021): 1317. http://dx.doi.org/10.3390/pr9081317.

Full text

Abstract:

Passive grinding is a high-speed rail grinding maintenance strategy, which is completely different from the conventional rail active grinding system. In contrast to active grinding, there is no power to drive the grinding wheel to rotate actively in passive grinding. The passive grinding process is realized only by the cooperation of grinding pressure, relative motion, and deflection angle. Grinding tests for passive grinding can help to improve the passive grinding process specifications and be used for the development of passive grinding wheels. However, most of the known grinding methods are active grinding, while the passive grinding machines and processes are rarely studied. Therefore, a passive grinding test machine was designed to simulate passive grinding in this study. This paper gives a detailed description and explanation of the structure and function of the passive grinding tester. Moreover, the characteristics of the grinding process and parameter settings of the testing machine were discussed based on the passive grinding principle. The design of a passive grinding test machine provides experimental equipment support for investigating passive grinding behavior and grinding process.

APA, Harvard, Vancouver, ISO, and other styles

4

Chen, Tao, Xian Chuang Li, Chang Hong Wang, Guang Miao, and Yan Yan Wang. "The Grinding and Test of Annular Milling Cutter with Double-Circular-Arc." Materials Science Forum 836-837 (January 2016): 205–11. http://dx.doi.org/10.4028/www.scientific.net/msf.836-837.205.

Full text

Abstract:

For the problem of the non standard cutter shape cutting edge not smooth transition connection and flank face of cutting tool grinding precision difference, the influence of wheel deformation is analyzed to different grinding linear speed, and the grinding wheel deformation error compensation grinding method is studied in this work. The grinding of annular milling cutter with double-circular-arc is processed in five axis CNC tool grinder. Finally the machining precision of annular milling cutter with double-circular-arc is tested by the tool test center, the result show that the wheel grinding method based on compensation of grinding can realize smooth transition in different parts of cutting edge belt of annular milling cutter with double-circular-arc and flank grinding precision is ensured.

APA, Harvard, Vancouver, ISO, and other styles

5

Żółkoś, Marcin, Marek Krok, Janusz Porzycki, Janusz Świder, and Marek Grabowy. "Grinding processes automated diagnostic test stand." Mechanik 91, no. 8-9 (September 10, 2018): 747–50. http://dx.doi.org/10.17814/mechanik.2018.8-9.122.

Full text

Abstract:

Presented is the automated measuring test stand based on the modified Haas VF-2YT machining center. That allows conducting experimental research of conventional and assisted with workpiece ultrasonic oscillations grinding processes (UAG). Respective measurement paths and automated measurement data acquisition process during the experimental research was discussed. Particular notice was given to grinding force components measurement system.

APA, Harvard, Vancouver, ISO, and other styles

6

Liu, Pengzhan, Wenjun Zou, Jin Peng, and Furen Xiao. "Investigating the Effect of Grinding Time on High-Speed Grinding of Rails by a Passive Grinding Test Machine." Micromachines 13, no. 12 (November 30, 2022): 2118. http://dx.doi.org/10.3390/mi13122118.

Full text

Abstract:

High-speed rail grinding is a unique passive grinding maintenance strategy that differs from conventional grinding techniques. Its grinding behavior is dependent on the relative motion between the grinding wheel and rail; hence, it possesses great speed and efficiency. In this study, the effects of the duration of grinding time and the increase in the number of grinding passes on the grinding of high-speed rails were investigated using passive grinding tests with a single grinding time of 10 s and 30 s and grinding passes of once, twice, and three times, respectively. The results show that when the total grinding time was the same, the rail removal, grinding ratio of grinding wheels, rail grinding effect, grinding force, and grinding temperature were better in three passes of 10 s grinding than in one pass of 30 s grinding, indicating that the short-time and multi-pass grinding scheme is not only conducive to improving the grinding efficiency and grinding quality in the high-speed rail grinding but can also extend the service life of the grinding wheels. Moreover, when the single grinding times were 10 s and 30 s, respectively, the grinding removal, grinding efficiency, grinding marks depth, and surface roughness of rail increased with the number of grinding passes, implying that the desired rail grinding objective can be achieved by extending the grinding time via the multi-pass grinding strategy. The results and theoretical analysis of this study will contribute to re-conceptualizing the practical operation of high-speed rail grinding and provide references for the development of the grinding process and grinding technology.

APA, Harvard, Vancouver, ISO, and other styles

7

Yao, Guang, Bing Guo, and Chang Hao Wu. "Test and Simulation of Indentation and Scratch on ZnS." Materials Science Forum 770 (October 2013): 50–53. http://dx.doi.org/10.4028/www.scientific.net/msf.770.50.

Full text

Abstract:

This paper discusses the grinding performance of ZnS. Its the base for ultra-precision grinding to master the mechanical properties and removal mechanism of ZnS which is an infrared material. This study determined the hardnessfracture toughness and critical grinding depth by micro-indentation test; Based on the result of nanoindentation test, constitutive model of ZnS was established and simulation of indentation and scratch were completed. Grinding removal mechanism and effect of process parameters on scratch result were explored by scratch test. It was found that test was consistent with simulation.

APA, Harvard, Vancouver, ISO, and other styles

8

YAKOU, Takao, Yuichi YOSHIKAWA, and Hajime SUGIUCHI. "Bonding Test of Thin Grinding Wheels." Journal of the Japan Society for Precision Engineering 60, no. 10 (1994): 1475–79. http://dx.doi.org/10.2493/jjspe.60.1475.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Annamalai, V. E., Arjhunn Hariharan, S. K. Vigneshram, C. Vinoth Kumar, Vivek Ananthakrishnan, and A. Xavier Kennedy. "Development of an In-House Test for Nut Integrity in F-Type Wheels." Applied Mechanics and Materials 787 (August 2015): 340–44. http://dx.doi.org/10.4028/www.scientific.net/amm.787.340.

Full text

Abstract:

Nut embedded disc grinding wheels, also known as disc grinding or F-Type wheels, are required for many production jobs. Nut pull-out is a common problem encountered in disc grinding wheels. The present work proposes a simple fixture, using which the integrity of the nut in the grinding wheel can be assessed. This method can be adopted by any grinding wheel manufacturer for a realistic estimate of nut pull out strength in double disc grinding wheels.

APA, Harvard, Vancouver, ISO, and other styles

10

Zhao, Bo, Ping Xie, and Chong Yang Zhao. "Ultrasonic Vibration Grinding Test of Composite Ceramics Based on the Nonlocal Theory." Advanced Materials Research 126-128 (August 2010): 139–42. http://dx.doi.org/10.4028/www.scientific.net/amr.126-128.139.

Full text

Abstract:

The effects of ultrasonic frequency on the grinding force and surface quality were analyzed from the grinding experiment on ZTA nano-composite ceramics. The results indicate that, in the same parameters, ultrasonic normal grinding force is about 65 to 85 percents of the ordinary grinding condition, and the surface quality is better than that of ordinary grinding condition, as the frequency increasing, this trend will be more evident. The reasons for it were also discussed from microscopic and the nonlocal theory in this paper.

APA, Harvard, Vancouver, ISO, and other styles

11

Ming, Xing Zu, Hong Zhi Yan, Guo Qi He, and Xiang Han Kong. "Grinding Process Parameters Optimization and Surface Performance Analysis of Spiral Bevel Gear Based on the Orthogonal Test." Advanced Materials Research 479-481 (February 2012): 1634–40. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.1634.

Full text

Abstract:

Based on the experimental conditions of generation grinding of spiral bevel gear, the grinding orthogonal test design of L16(45) is made, and the results of grinding orthogonal test are obtained. On this basis, the range and variance analyses are carried out by using an integrated balance method, and the optimizing configuration of grinding process parameters of spiral bevel gear is obtained. The test regression models of three grinding evaluating indicators of spiral bevel gear, such as the grinding surface roughness Ra, metamorphic layer depth h and removal rate Zw, are set up by using a method of multivariate nonlinear least square. The maximal absolute value of relative error between computing values and testing ones is 18.41 percent by test validation, and this shows that the regression models are more effective. Through the test optimization of grinding surface performance, the value of grinding surface roughness Ra is more less 0.1μm than one of the normal grinding process, and other comprehensive performances are better. The pre-control measures of grinding process optimization of spiral bevel gear are also put forward. These provide a basis for the improvement of grinding surface quality of spiral bevel gear.

APA, Harvard, Vancouver, ISO, and other styles

12

Wang, Wei Zhi, and Xue Liang Zhou. "Research of Grinding Wheel Wear Modeling Based on Hypothesis Test Principle." Advanced Materials Research 472-475 (February 2012): 3053–56. http://dx.doi.org/10.4028/www.scientific.net/amr.472-475.3053.

Full text

Abstract:

Grinding wheel wear has an obvious stage character, only in the end of wear stage, the workpiece surface quality will decrease significantly, in order to avoid such situation, need to find the critical point of grinding wheel wear in time. Based on the production field data, combined with the application of hypothesis test method, a new method to infer grinding wheel wear state was established in the article, the degree of grinding wheel wear can be quantificationally analyzed. Via practical production testing, is checked that the new method is effective.

APA, Harvard, Vancouver, ISO, and other styles

13

Liu, Ying, Wentao Dai, Guijian Xiao, and Yun Huang. "Surface Integrities of Different Trajectories in Belt Grinding for Pure Iron Functional Performance Test Pieces." Crystals 9, no. 3 (February 27, 2019): 123. http://dx.doi.org/10.3390/cryst9030123.

Full text

Abstract:

In order to reduce the influence of surface burns and other defects in the processing of pure iron parts for a functional properties test, and to improve the accuracy and usability of the test results, abrasive belt grinding is used for surface grinding. Because of the long circumference of the belt, and the long cooling time of the abrasive particles, cold grinding can be achieved, so that the incidence of surface burns, machining hardening, and other defects can be reduced. An experimental platform for belt grinding of pure iron parts for a functional properties test was built, and corresponding belt grinding experiments were carried out. The influences of grinding parameters, such as belt velocity, feed velocity, the grinding track on the microcosmic morphology, surface roughness, surface residual stress, and micro-hardness were studied. The results showed that belt grinding improved the surface integrity, the surface roughness was less than Ra 0.4 μm, the surface residual stress ranged from −253.84 MPa to −164.14 MPa, and the micro-hardness ranged from 118 HV to 170 HV. Furthermore, to get the workpiece surface to mostly suit the functional performance test, a high abrasive belt linear speed, a low grinding depth, and a feed speed should be selected, and the processing should be conducted with a circular trajectory.

APA, Harvard, Vancouver, ISO, and other styles

14

Ming, Xing Zu, Zhong Gun Li, Xian Wen Xiong, and Jing Zhou. "Experimental Research on Grinding Surface Layer Behavior and Process Parameter Optimization of Spiral Bevel Gears." Advanced Materials Research 936 (June 2014): 1707–15. http://dx.doi.org/10.4028/www.scientific.net/amr.936.1707.

Full text

Abstract:

Based on the test analyses of grinding surface layer behavior of spiral bevel gears, many conclusions are gotten. Compressive residual stresses are occurred on grinding tooth surface, tensile residual stresses are located in tooth layer, and change laws of grinding residual stresses are different from ones of grinding surface roughness Ra as the grinding process parameters. A temper layer is occurred in tooth layer after normal grinding, and the micro-hardness of grinding surface is lower. When arriving at the critical condition, namely grinding temperature is above 600 degree Celsius, and metamorphic layer depth is greater than 0.2mm, different degree of grinding burn is produced, and their microstructures are changed. Based on grinding orthogonal test L16(45), the optimizing configuration of grinding process parameters of spiral bevel gear is obtained by using a mean variance analysis of integrated balance method. Based on the test optimization of grinding surface layer behavior, the comprehensive performances of grinding surface, such as grinding residual stresses, surface roughness, micro-hardness and structure, metamorphic layer depth et al, are better. These provide a basis for improvement of grinding surface quality of spiral bevel gears.

APA, Harvard, Vancouver, ISO, and other styles

15

Zhao, Zhuan, Xiaochu Liu, Zhe Qin, and Youcheng Chen. "Fatigue life test of reinforced grinding bearings." MATEC Web of Conferences 139 (2017): 00171. http://dx.doi.org/10.1051/matecconf/201713900171.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Engqvist, H., N. Axén, and S. Hogmark. "An improved crater grinding micro-abrasion test." Tribotest 5, no. 3 (March 1999): 251–64. http://dx.doi.org/10.1002/tt.3020050304.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Zhu, Xi Jing, Zhi Meng Lu, X. D. Sun, and Hang Gao. "Test Research on Grinding Performance of the New Grinding Fluid in Power Ultrasonic Honing." Advanced Materials Research 69-70 (May 2009): 238–42. http://dx.doi.org/10.4028/www.scientific.net/amr.69-70.238.

Full text

Abstract:

Grinding fluid has an important effect in processing work piece, so in view of the new grinding fluid, a large number of tests have been taken in the application of the power ultrasonic vibration honing. The massive experimental study, separated from the work piece’s surface roughness, the work piece’s surface rubbed deterioration layer and the influence to the processing characteristic with different density of the new grinding fluid and so on, discussed the adaptability of the new grinding fluid in power ultrasonic vibration honing processing. The research has been indicated that although the new grinding fluid does not surpass the traditional working fluid, such as emulsion and liquor, in cooling performance, it has a better lubricating property and has the obvious superiority in the working accuracy and the oilstone’s length of life. Therefore the new self-developed grinding fluid is suitable for the power ultrasonic honing processing.

APA, Harvard, Vancouver, ISO, and other styles

18

Weingaertner, Walter Lindolfo, and Adriano Boaron. "A Quick-Test Method to Determine the Grinding Wheel Topography Based on Acoustic Emission." Advanced Materials Research 325 (August 2011): 282–86. http://dx.doi.org/10.4028/www.scientific.net/amr.325.282.

Full text

Abstract:

A quick-test method for the determination of the topographic characteristics of a CBN grinding wheel is developed based on acoustic emission technology. For implementing the strategy, an acoustic emission (AE) monitoring system was integrated into a 3 axis CNC grinding machine. A computer with specific software allows the signal acquisition and visualization of the AERMS signals, which are originated through interferences between the grinding wheel and dressing tool in a range of a few micrometers. The acquired AERMS signals from these interferences are used in order to establish an on-line map from the grinding wheel periphery, indicating the active cutting grains during the contact amid grinding wheel and dressing tool. The implementation of such activity supported by AE has led to satisfactory results regarding the required time to evaluate the strategy as well as the verified correlation with different grinding topographies caused by changes in the dressing parameters.

APA, Harvard, Vancouver, ISO, and other styles

19

Hoffmeister, Hans Werner, and Ronald Wittmer. "Development and Test of CVD-Diamond Microgrinding Wheels." Key Engineering Materials 447-448 (September 2010): 131–35. http://dx.doi.org/10.4028/www.scientific.net/kem.447-448.131.

Full text

Abstract:

CVD-diamond microgrinding wheels can be used in the microsystems technology, e.g. to produce microarrays consisting of glass. These novel tools have the same advantages as CVD-diamond microgrinding pins, but they can even be used with higher cutting velocities and higher material removal rates. Furthermore, micro cracks and chipping could be minimized and better surface qualities could be achieved. The tool body consists of cemented carbide. After designing a suitable geometry for these novel micro grinding tools, they had to be produced with cup wheels. The design, which has already been tested, is a grinding wheel of the type “1A1”. The CVD-diamond microgrinding wheels were analyzed with a scanning electron microscope (SEM) due to their topography and crystallite size. The microgrinding wheels were tested with regard to their grinding behavior. During the investigations, cutting forces were measured and afterwards analyzed. In addition, surface roughnesses were measured, so that the materials could be compared with regard to their grindability. The tool wear was evaluated by means of SEM-pictures. They showed the wear resisting behavior of the CVD-diamond microgrinding wheels. Even after grinding a high material removal rate in the hard ceramic aluminum nitride, only a small clogging of the microgrinding wheel was monitored. The slight increase of the cutting force is another indicator for the clogging. It can be summarized that novel grinding tools could be successfully developed and tested with hard and brittle materials. During these tests, the cutting forces and surface roughnesses as well as wear behavior and end of tool life were determined and will be shown in this publication.

APA, Harvard, Vancouver, ISO, and other styles

20

Tian, L., Yu Can Fu, W. F. Ding, Jiu Hua Xu, and H. H. Su. "Removal Mechanism of Titanium Alloy Ti6Al4V Based on Single-Grain High Speed Grinding Test." Key Engineering Materials 487 (July 2011): 39–43. http://dx.doi.org/10.4028/www.scientific.net/kem.487.39.

Full text

Abstract:

Single-grain grinding test plays an important part in studying the high speed grinding mechanism of materials. In this paper, a new method and experiment system for high speed grinding test with single CBN grain are presented. In order to study the high speed grinding mechanism of TC4 alloy, the chips and grooves were obtained under different wheel speed and corresponding maximum undeformed chip thickness. Results showed that the effects of wheel speed and chip thickness on chip formation become obvious. The chips were characterized by crack and segment band feature like the cutting segmented chips of titanium alloy Ti6Al4V.

APA, Harvard, Vancouver, ISO, and other styles

21

LÖNNBERG, BRUNO. "DEVELOPMENT OF WOOD GRINDING 1. GRINDING MODEL." Cellulose Chemistry and Technology 54, no. 9-10 (November 11, 2020): 939–41. http://dx.doi.org/10.35812/cellulosechemtechnol.2020.54.90.

Full text

Abstract:

The aim of this study was to develop and test a model expected to be useful in interpretation of stone grinding of wood. Since stone grinding has been in use for about two centuries, it is surprising that some grinding mechanisms still remain undiscovered. The application of an energy balance set-up for the wood and grindstone surfaces, valid for wood grinding under conditions presenting continuity, resulted in a useful model. The theoretical model developed suggests that the ratio of the compression and tension powers, called the power ratio, depends linearly on the specific production. The experimental grinding data tested in this context follow the theoretical model. Hence, it would be a valuable tool in further evaluation of grinding and groundwood data.

APA, Harvard, Vancouver, ISO, and other styles

22

Wang, Kai, Wan Chen Sun, Feng Ming Nie, Qing Tang Wu, Huan Wu, and Shan Li. "Research on the Influence of NС Quick-Point Grinding Parameters to Complex Rotator Surface Roughness." Applied Mechanics and Materials 556-562 (May 2014): 1083–86. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.1083.

Full text

Abstract:

It studies the influence of linear speed of grinding wheel and rotational speed of workpiece to complex rotator surface roughness. Using self-designed NC quick-point grinding machine do the grinding test at different linear speeds of grinding wheel and different rotational speeds of workpiece, gained the relationship curve between the linear speed of grinding wheel, rotational speed of workpiece and complex rotator surface roughness. The test results show that using quick-point grinding technology can grind multiple external cylindrical and cone-shaped surfaces by only one time fixing, it can get 0.025um surface roughness in a reasonable condition of the grinding parameters. During point grinding process, higher wheel speed gets better surface roughness, higher workpiece shaft speed gets worse surface roughness.

APA, Harvard, Vancouver, ISO, and other styles

23

Novita, Sri Aulia, Hendra Hendra, Jamaluddin Jamaluddin, Muhammad Makky, and Khandra Fahmi. "Design and Performance Test of Rubber Grinding Machine." Journal of Applied Agricultural Science and Technology 3, no. 2 (August 31, 2019): 299–308. http://dx.doi.org/10.32530/jaast.v3i2.112.

Full text

Abstract:

The quality of rubber processed materials, that is produced by the farmer is generally low and can be seen from their colour, pollutants levels, foul odour and the very cheap price. To improve the quality of the rubber should be done both in terms of its treatment and processing equipment. The main objective of this research is to enhance and improve the quality of farmer's rubber processed materials by using natural coagulant which liquid smoke to agglomerate the rubber, and designing of rubber grinding machine. The component of rubber grinding machine including hopper, regulating entry materials, three rollers, pulleys and belt, outlet, gears, engine, regulating the thickness and chassis. In this research, the thickness rubber after grinding is 3-5 mm accordance with Indonesian National Standard rubber. Processed material rubber produced is white and no pollutants. The coagulant used was liquid smoke with a concentration of 10 -20%, where this addition affects the agglomeration speed of rubber and smelled slightly of smoke. The average rate of Feed is 48.58 kg / h, a capacity of the machine is 37.40 kg/hr and cost of operation is Rp. 650 / kg.

APA, Harvard, Vancouver, ISO, and other styles

24

Tan, Yuanqiang, Cong Zhang, Shengqiang Jiang, and Y. T. Feng. "Simulation of Ceramic Grinding Mechanism Based on Discrete Element Method." International Journal of Computational Methods 16, no. 04 (May 13, 2019): 1843008. http://dx.doi.org/10.1142/s0219876218430089.

Full text

Abstract:

The grinding mechanism is the base of developing new precision machining technology, especially for brittle materials including ceramics. In previous work, many results were gained from single grit cutting model in which a grit is in contact continuously with a workpiece, similar to the indentation or scratching process, to model the material remove in grinding processing. However, the abrasives are distributed randomly on the surface of the grinding wheel, and they will impact the workpiece periodically in the grinding process. In this study, the discrete element method was introduced to simulate the mechanics behavior of [Formula: see text] ceramic. The model was validated by simulating indentation test. Both linear scratching test and pendulum scratching test have been simulated in this paper to model the grinding process. The cracks initiation and propagation were also investigated. This study has demonstrated that we should pay close attention to pendulum scratching test to explore the grinding mechanism, and concentrate on cracks initiation and propagation.

APA, Harvard, Vancouver, ISO, and other styles

25

Gong, Ya Dong, Yue Ming Liu, Jun Cheng, and J. F. Zhang. "Research on Micro-Grinding Method and Surface Quality." Key Engineering Materials 487 (July 2011): 6–10. http://dx.doi.org/10.4028/www.scientific.net/kem.487.6.

Full text

Abstract:

Grinding characteristics brought by the grinding speed reduction and geometrical model differences between micro-grinding and conventional grinding have been mainly researched. Influences which micro-grinding parameter and micro-grinding tool dimension parameter giving to grinding surface quality have been analyzed. The comparison experiment between micro-grinding and micro-milling has been carried out on the micro-machining test-bed developed by Northeast University. Wear of the grinding pin obtained from experiment is considered to provide the basis for the micro-machining system and fabricating of grinding pins.

APA, Harvard, Vancouver, ISO, and other styles

26

Zhang, Z., B. Li, W. Shi, and Y. Huang. "Multi-component measurement of grinding force during high speed internal thread grinding." ACTA IMEKO 9, no. 5 (December 31, 2020): 163. http://dx.doi.org/10.21014/acta_imeko.v9i5.961.

Full text

Abstract:

Experiments of internal thread grinding and flat groove grinding show that grinding efficiency and quality can be significantly improved by increasing the wheel speed. According to the characteristics of internal thread grinding and flat groove grinding, the grinding force measurement experiment is designed. The equivalent substitution method is used to compare with the Grinding Force per Unit Area in surface grinding test under the same conditions. The experimental results show that the measurement error of Grinding Force per Unit Area is less than 25 %.

APA, Harvard, Vancouver, ISO, and other styles

27

Pan, Xu Dong, Guang Lin Wang, Xin Xin Cheng, and Hong Chao Lv. "Automatic Measuring System of Servo Valve Overlap Value Based on Hydraulic Cylinder Switching Oil-Way." Key Engineering Materials 579-580 (September 2013): 248–52. http://dx.doi.org/10.4028/www.scientific.net/kem.579-580.248.

Full text

Abstract:

During the processing of the servo valve spool machining, the overlap of valve spool's each edge should take zero grinding. The grinding processes including spool overlap test and grinding. In this paper, the authors used a new test method, which simulates working condition of servo valve. Hydraulic cylinder is used as the load of servo valve in this test method, and the hydraulic cylinder is in no-load operation. This test method realized the automatic switch of test valve, and it determined the amount of grinding through complete measuring four edges overlap values, furthermore, it realized measuring the total amount of overlap, thus reflect the flow characteristics of a valve. This is a new automatic method for measuring servo valve overlap.

APA, Harvard, Vancouver, ISO, and other styles

28

Tian, Xin Li, Jun Fei Yang, Chao Liu, Fang Guo, and Ai Bing Yu. "Study on Performance and Mechanism of High Efficiency Organic Grinding Liquid for Ceramics with Silicon." Key Engineering Materials 431-432 (March 2010): 158–61. http://dx.doi.org/10.4028/www.scientific.net/kem.431-432.158.

Full text

Abstract:

This study selected three types of organic substance as the main components of high-efficient organic grinding liquid for grinding ceramics with silicon. The grinding efficiency test was conducted on the basis of self-developed grinding mechanism and the findings indicated that the grinding performance of all these three types of grinding liquid were better than average grinding liquid. With Si3N4 Ceramics as the representative test material, the grinding efficiency can be increased at least 1.37 times and more than twice with the grinding fluid prepared with oleic acid or oleic alcohol. The analysis of liquid-solid interface with the help of infrared spectrum showed that there existed abnormal vibration peaks in the liquid-solid interface between Si3N4 ceramics and grinding liquid with (organic substances)–OOH and －OH under normal temperature, which resulted from the adsorption effect of hydrogen bond generated between organic molecule and Si3N4 ceramics. Under high grinding temperature, the friction chemical reaction took place as the result of the absorption effect and the resultant could not only reduce the surface hardness, but also improve the lubricating effect, thus improving the grinding efficiency and surface quality.

APA, Harvard, Vancouver, ISO, and other styles

29

Wu, Yan, Er Geng Zhang, and Wen Zhong Nie. "Test Research on the Surface Residual Stress of Dimensional Ultrasonic Vibration Grinding for Al₂O₃/ZrO_2(n)." Advanced Materials Research 295-297 (July 2011): 78–82. http://dx.doi.org/10.4028/www.scientific.net/amr.295-297.78.

Full text

Abstract:

Based on the research for the structure of the ceramic nanocomposites’ intragranular for Al2O3/ZrO2(n)，we did the test by the workpiece two-dimensional vibration grinding(WTDUVG), and focus on analyzing the characteristic and the effect element of the two-dimensional ultrasonic vibration grinding ceramic surface residual stress by the XRD diffraction. The result show that ceramic dimensional ultrasonic vibration grinding surface tensile stress is less than the same conventional grinding (CG) surface under tensile stress; two-dimensional ultrasonic vibration grinding surface residual compressive stress than conventional ground surface residual stress under the same grinding. Material removal mechanism of the grinding nature of the surface residual stress, when the material removaled by ductile deformation, grinding surface equal residual stress; when the material removaled by brittle- ductile mixed mode, the grinding surface tensile stress reduced, because the fracture of the ground surface, tensile stress released. As a results, the grit size of grinding wheel, Grinding depth and workpiece mechanical properties are the main technology factors affected the nature and size of the residual stress of ground surface.

APA, Harvard, Vancouver, ISO, and other styles

30

Zhao, Jia Yan, Yu Can Fu, Jiu Hua Xu, Lin Tian, and Lu Yang. "Forces and Chip Morphology of Nickel-Based Superalloy Inconel 718 during High Speed Grinding with Single Grain." Key Engineering Materials 589-590 (October 2013): 209–14. http://dx.doi.org/10.4028/www.scientific.net/kem.589-590.209.

Full text

Abstract:

Single-grain grinding test plays an important part in studying the high speed grinding mechanism of materials. In this paper, a new experimental system for high speed grinding test with single diamond grain is presented. The differences of surface topography and chip morphology of Inconel 718 machined by single diamond grain and single CBN grain were evaluated. The grinding forces and corresponding maximum undeformed chip thickness were measured under different grinding speeds. The chips, characterized by crack and segment band feature like the cutting segmented chips, were collected to study the high speed grinding mechanism of nickel-based superalloy. The results show that the grinding speed has an important effect on the forces and chip formation, partly due to the temperature variation. As the speed increases, the groove surface becomes smoother.

APA, Harvard, Vancouver, ISO, and other styles

31

Yaguchi, Osama, Yoshiyuki Okada, and Toshihiko Sasaki. "Nondestructive Structure Test of Cam-Shaft Using both Eddy Current and X-Rays." Advanced Materials Research 409 (November 2011): 590–94. http://dx.doi.org/10.4028/www.scientific.net/amr.409.590.

Full text

Abstract:

The cam-shaft for the internal-combustion engine needs to be chilled at the foundry stage to rise the cam hardness, but unexpected chilled structures could occur on the sensor plate surface. If chilled structures exist on the sensor plate, a grinding tool may break when grinding sensor plate, or the specified shape may be unable to be produced due to resistance arising from the hyper-hardness of the chilled structures. For this reason, developing an inspection technique and a device for detecting unnecessary chilled structures before grinding the cam-shaft and for determining the rejection and removal of cam-shafts with chilled structures detected was necessary.

APA, Harvard, Vancouver, ISO, and other styles

32

Pakzad, Sajjad, Aslan Khani Sheykh Rajab, Mehran Mahboubkhah, Mir Mohammad Ettefagh, and Omid Masoudi. "Modal Analysis of the Surface Grinding Machine Structure through FEM and Experimental Test." Advanced Materials Research 566 (September 2012): 353–56. http://dx.doi.org/10.4028/www.scientific.net/amr.566.353.

Full text

Abstract:

Machine tool vibrations have great impact on machining process. In this paper the dynamic behavior and modal parameters of surface grinding machine is presented. For this purpose, the CAD (computer aided design) model of the surface grinding machine structure is provided in catia and then Natural frequencies and mode shapes of the machine tool structure are carried out through FEM (finite element method) modal analysis under ansys. The model is evaluated and corrected with experimental results by modal testing on surface grinding machine. Finally, the natural frequencies and mode shapes obtained by both experimental and FEM modal analysis are compared. The results of two methods are in widely agreement.

APA, Harvard, Vancouver, ISO, and other styles

33

Yamada, Takazo, Hiroki Yuge, Hwa Soo Lee, and Kohichi Miura. "Experimental Evaluation of Grinding Mechanism in Micro Depth of Cut." Key Engineering Materials 496 (December 2011): 110–14. http://dx.doi.org/10.4028/www.scientific.net/kem.496.110.

Full text

Abstract:

In order to make clear the grinding mechanism in micro depth of cut, micro grinding test with a diamond indenter having defined geometrical shape is carried out. As the experimental results, it is clarified that the ratio of two force components and the swell-out residual ratio in micro grinding have different tendencies from ordinary grinding area. Based on these results, it can be estimated that the grinding mechanism in micro grinding differs from the ordinary grinding mechanism.

APA, Harvard, Vancouver, ISO, and other styles

34

Aliaga, R., LN Miotto, LM Candido, LMG Fais, and LAP Pinelli. "Does Diamond Stone Grinding Change the Surface Characteristics and Flexural Strength of Monolithic Zirconia?" Operative Dentistry 45, no. 3 (May 1, 2020): 318–26. http://dx.doi.org/10.2341/19-023-l.

Full text

Abstract:

SUMMARY Purpose: The present study evaluated the effect of grinding on the surface morphology, mean roughness, crystalline phase, flexural strength, and Weibull modulus of monolithic (MZ) and conventional (CZ) zirconias. Methods and Materials: CZ and MZ bars and square-shaped specimens were distributed into three subgroups, combining grinding (G) and irrigation (W) with distilled water: Ctrl (Control: no grinding, 20 × 4 × 1.2 mm and 12 × 1.2 mm), DG (dry grinding, 20 × 4 × 1.5 mm and 12 × 1.5 mm), and WG (grinding with irrigation, 20 × 4 × 1.5 mm and 12 × 1.5 mm). The grinding (0.3 mm) was performed on a standardized device using a low-rotation wheel-shaped diamond stone. The four-point flexural strength test was performed on the EMIC 2000 machine (5 KN, 0.5 mm/min). Scanning electron microscopy (SEM) was used to evaluate the surface morphology. An X-ray diffractometer (XRD) was used to obtain the crystalline structures that were analyzed by the Rietveld method. Flexural strength (FS) values were subjected to the Shapiro-Wilk test and two-way analysis of variance followed by the Tukey's test (for all tests, α=0.05). Results: Grinding, either with or without irrigation, did not change the FS of the MZ but increased the FS of the CZ. Both MZ and CZ showed similar morphologic patterns after grinding, and in the WG groups, the grinding was more aggressive. The MZ had greater monoclinic content in all groups; grinding without irrigation caused the smallest t→m transformation. Conclusion: The grinding, when necessary, should be carried out without irrigation for conventional and monolithic zirconias.

APA, Harvard, Vancouver, ISO, and other styles

35

Nie, Yi Miao, Li Mei Bai, and Shu Xian Liu. "Experimental Research of Fluorite Flotation Separation." Advanced Materials Research 652-654 (January 2013): 2576–79. http://dx.doi.org/10.4028/www.scientific.net/amr.652-654.2576.

Full text

Abstract:

Grade of fluorite in this test is 30.95%,containing CaCO3 0.86%. On the base of much experiment research, such as grinding fineness test, pH test, agent dosage test and so on, the optimum conditions were: grinding fineness for first stage is -0.074mm 65%,pH=9, sodium silicate 0.8 kg/t and oleic acid 0.7 kg/t . The result of tests showed that the grade of CaF2 concentrate, recovery and productivity are 95.38%, 63.42% and31.20% by adopting a circuit of one rough flotation and seven concentrating with grinding fineness -0.043mm90.3%.

APA, Harvard, Vancouver, ISO, and other styles

36

Liu, Shu Xian, Jin Xia Zhang, Miao Chen, and Zhi Shuai Xu. "Test Research on HIMS-Reverse Flotation of Oolitic Hematite of Longyan Iron Mine." Advanced Materials Research 753-755 (August 2013): 24–27. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.24.

Full text

Abstract:

In order to better exploit and utilize the oolitic hematite ore resource in Zhangjiakou region, staged grinding-separation process consisting of high intensity magnetic separation(HIMS) and reverse floatation was adopted in the beneficiation test on the regionally representative oolitic hematite ore of Longyan Iron Mine, Xuan Stee1. The test results indicate that，with Slong pulsating high gradient magnetic separation as HIMS equipment，with NaOH，starch，CaO and TS as flotation reagents，and at a grind of 65％ -200 mesh for the primary grinding and 95％-200 mesh for the secondary grinding，an iron concentrate grading 62.34％ and having an iron recovery of 53.07％ can be achieved after two stage HIMS and one roughing—one cleaning reverse flotation.

APA, Harvard, Vancouver, ISO, and other styles

37

Kolev, Nikolay, Petar Bodurov, Vassil Genchev, Ben Simpson, Manuel G. Melero, and Juan M. Menéndez-Aguado. "A Comparative Study of Energy Efficiency in Tumbling Mills with the Use of Relo Grinding Media." Metals 11, no. 5 (April 29, 2021): 735. http://dx.doi.org/10.3390/met11050735.

Full text

Abstract:

An evaluation of Relo grinding media (RGM, Reuleaux tetrahedron-shaped bodies) performance versus standard grinding media (balls) was made through a series of grinding tests, including a slight modification of the standard Bond test procedure. Standard Bond tests showed a reduction in the Bond ball mill work index (wi) of the mineral sample used in this study when using Relo grinding media. The modified Bond test procedure is based on using the standard Bond ball work index test but changing the circulating loads (350%, 250%, 150%, 100%). The comparative tests with RGM were carried out at the same number of revolutions as the grinding tests with balls at respective circulating load. The RGM charge yielded a 14% higher net undersize product than balls, which hints at improving energy efficiency and the potential for significant mining industry benefits.

APA, Harvard, Vancouver, ISO, and other styles

38

Nosenko, V. A., N. D. Serdyukov, O. M. Shkoda, and P. I. Smarsky. "COOLANT TEST AT THE PROCESS OF FLAT INFEED GRINDING OF TITANIUM ALLOY." IZVESTIA VOLGOGRAD STATE TECHNICAL UNIVERSITY, no. 8(243) (August 28, 2020): 40–43. http://dx.doi.org/10.35211/1990-5297-2020-8-243-40-43.

Full text

Abstract:

When grinding the VT9 titanium alloy, the following types of coolant were tested: an aqueous solution of sodium phosphate trisubstituted o, semi-synthetic with extreme pressure additives, synthetic universal and standard. The height and step parameters of the roughness of the treated surface, the grinding coefficient are determined. The correlation coefficients between these parameters are calculated. The differences in the morphology of the polished surface are shown.

APA, Harvard, Vancouver, ISO, and other styles

39

Cheng, X. M., Long Shan Wang, and Guang Fu Li. "Thermal Model's Building and Experimental Research in Grinding Contact Zone for Plunge Grinding Process." Key Engineering Materials 304-305 (February 2006): 281–85. http://dx.doi.org/10.4028/www.scientific.net/kem.304-305.281.

Full text

Abstract:

During the process of plunge grinding, a test piece can be axially grooved with thermocouple embedded, thermo-electromotive force will be conducted through collecting ring and then after A/D converting, data will be digitally acquired and online test will be realized. Based on the thermal theories, this paper presents a simple model to calculate the workpiece’s contact zone temperature during plunge grinding process. This model can be used to predict and calculate the grinding temperature easily. An empirical formula calculating the temperature of the grinding contact surface had been obtained through multivariate linear regression analysis experiments. The thermometric system showed in this paper had solved the knotty problem that the grinding temperature was very difficult to measure for plunge grinding. Compared with traditional method, the testing method adopted by the author will give more accurate result and more closely represent the test piece situation. The results of the computer simulation and the experiments proved the exactitude of the thermal model and the feasibility of the thermometric system.

APA, Harvard, Vancouver, ISO, and other styles

40

Iwai, Manabu, Kiyotaka Nakagawa, Tetsutaro Uematsu, Keizo Takeuchi, and Kiyoshi Suzuki. "Grinding Characteristics of Boron Doped Diamond Grits Grinding Wheel." Key Engineering Materials 329 (January 2007): 477–82. http://dx.doi.org/10.4028/www.scientific.net/kem.329.477.

Full text

Abstract:

Metal and resin bonded diamond wheels were trial manufactured from boron doped diamond grits possessing electrical conductivity and high oxidation temperature. From the results of the investigation on the electro-discharge truing performance, a high truing efficiency along with the possibility of formation of cutting edges on the grits was confirmed. According to the results of the grinding experiment performed using this grinding wheel with flattened abrasive tips, a remarkable improvement in the work surface roughness could be achieved. Furthermore, from the results of the grinding test on cemented carbide and optical glass using the boron doped diamond grits wheel, the grinding ratio was found to increase significantly, whereas the surface roughness improved compared to a conventional diamond grits (similar friability) wheel.

APA, Harvard, Vancouver, ISO, and other styles

41

Pan, Lin, and Lin Zhu. "Preliminary Study on Mechanism of Superalloy Deep-Hole Honing Technology." Applied Mechanics and Materials 271-272 (December 2012): 353–56. http://dx.doi.org/10.4028/www.scientific.net/amm.271-272.353.

Full text

Abstract:

Anglicizing the superalloy mechanical and cutting characteristics, and according to the oil-stone grinding characteristics, choose the current commonly abrasives in the domestic. Processing performance test of inconel 718 deep-hole honing is carried out. The comparison test results show that the grinding performance of ceramic corundum is better than other oilstones at test condition. Grinding characteristics of ceramic corundum is carried on, study show that the size of ceramic alumina grits range from 0.067 to 0.005 μm, The grinding passivated tiny grains of ceramic corundum oil-stone broken and fall off timely, which is beneficial to oil-stones, self-sharpness. The excellent performance of ceramic corundumcan self-sharpening can improves the efficiency of honing effectively.

APA, Harvard, Vancouver, ISO, and other styles

42

Satpathy, Sweety, and Amitava Ghosh. "On Material Removal Mechanism in High Speed Single Grit Scratch-Grinding of Cryo-Treated Al2024-T351 Aluminium Alloy." Materials Science Forum 1009 (August 2020): 123–28. http://dx.doi.org/10.4028/www.scientific.net/msf.1009.123.

Full text

Abstract:

Feasibility of utilizing cryogenic technology to improve the shearability of Al2024-T351 alloy is experimentally investigated by carrying out a single grit scratch-grinding test. A single grit brazed diamond grinding tool is developed for the study. Al2024-T351 work specimens are treated with liquid nitrogen for 6 hours before the scratch test. Although there was no significant change in the tensile strength of the material, the surface experiences change in the microhardness. It helps in arresting the side flow and ploughing of the material during high speed scratch grinding. The scratched grooves on cryo-treated samples, compare to those of untreated specimens, shows signs of cleaner shear-cuts, superior finish and produces less grinding force during grinding

APA, Harvard, Vancouver, ISO, and other styles

43

Huang, Zhi, Lei Zhang, Yun Huang, and Jian Qiang Wu. "Study on Heavy CNC Belt Grinding Technology of High Precision Controllable Pitch Propeller." Advanced Materials Research 135 (October 2010): 404–8. http://dx.doi.org/10.4028/www.scientific.net/amr.135.404.

Full text

Abstract:

A high-precision grinding method is presented to the marine controllable pitch propeller. Developed the four-axis simultaneous grinding system based on the abrasive belt grinding principle, and studied the key technologies of the grinder, such as the heavy-duty belt grinding head, the controllable pitch propeller grinding CNC programming software, etc. And on these bases, we have done the four-axis simultaneous heavy belt grinding test verification on the surface of the controllable pitch propeller blade with the grinder, providing a reference to determine the reasonable marine propeller belt grinding process parameters.

APA, Harvard, Vancouver, ISO, and other styles

44

Bazuev, I. V., Yu V. Pribytkov, I. A. Kovaleva, and I. A. Ovchinnikova. "A DETAILED STUDY OF THE PERFORMANCE AND OPTIMAL CHOICE OF ABRASIVE FOR WET GRINDING OF HIGH-ALLOYED STEELS." Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY), no. 2 (July 7, 2018): 94–98. http://dx.doi.org/10.21122/1683-6065-2018-2-94-98.

Full text

Abstract:

In the pipe-rolling shop, on the site of preparation of mandrels and disc saws were the centerless turning and grinding complex VT-8 «Hetran» for repair of mandrels are used, studies have been conducted to test experienced grinding belts. The choice was based on a comparative analysis of the work of experienced grinding belts with usual industrial grinding belts. The resistance of grinding belts for one mandrel is calculated. A positive result (economic effect) was obtained by using experienced grinding belts.

APA, Harvard, Vancouver, ISO, and other styles

45

Chang, Chih Hsiang, Jhy Cherng Tsai, Neng Hsin Chiu, and Rei Yu Chein. "Modeling Surface Roughness and Hardness of Grinding SKD11 Steel Using Adaptive Network Based Fuzzy Inference." Advanced Materials Research 126-128 (August 2010): 171–76. http://dx.doi.org/10.4028/www.scientific.net/amr.126-128.171.

Full text

Abstract:

Grinding is a commonly used process in precision machining. This paper is aimed to establish a model for predicting surface roughness and hardness with respect to grinding parameters, including wheel speed, feed rate and depth of grinding for the SKD11 molding steel. The Adaptive Network based Fuzzy Inference (ANFIS) is used to construct the grinding model that is trained by experimental data from grinding the SKD11 steel. Test experiments are then conducted to verify the model. Results from the test experiments showed that the average error between surface roughness predicted by the model and the measured data is 3.94%. The average different of the hardness between the measured data and that predicted by the model is less than 0.06%. It verifies that the model can be used to predict surface roughness and hardness for different grinding parameters.

APA, Harvard, Vancouver, ISO, and other styles

46

İşerı, Ufuk, Zeynep Özkurt, Ender Kazazoğlu, and Davut Küçükoğlu. "Influence of grinding procedures on the flexural strength of zirconia ceramics." Brazilian Dental Journal 21, no. 6 (2010): 528–32. http://dx.doi.org/10.1590/s0103-64402010000600008.

Full text

Abstract:

The surface of zirconia may be damaged during grinding, influencing the mechanical properties of the material. The purpose of this study was to compare the flexural strength of zirconia after different grinding procedures. Twenty bar-type zirconia specimens (21 x 5 x 2 mm) were divided into 4 groups and ground using a high-speed handpiece or a low-speed straight handpiece until the bars were reduced 1 mm using two different grinding times: continuous grinding and short-time grinding (n=5). Control specimens (n=5) were analyzed without grinding. The flexural strengths of the bars were determined by using 3-point bending test in a universal testing machine at a crosshead speed of 0.5 mm/min. The fracture load (N) was recorded, and the data were analyzed statistically by the Kruskal Wallis test at a significance level of 0.05. In the test groups, high-speed handpiece grinding for a short time had produced the highest mean flexural strength (878.5 ± 194.8 MPa), while micromotor continuous grinding produced the lowest mean flexural strength (733.8 ± 94.2 MPa). The control group was the strongest group (928.4 ± 186.5 MPa). However, there was no statistically significant differences among the groups (p>0.05). Within the limitations of the study, there was no difference in flexural strength of zirconia specimens ground with different procedures.

APA, Harvard, Vancouver, ISO, and other styles

47

Kim, Kyeong Tae, Yun Hyuck Hong, Kyung Hee Park, Young Jae Choi, Seok Woo Lee, and Hon Jong Choi. "An Experimental Investigation of Ultrasonic Assisted Grinding in DOE Approach." Advanced Materials Research 565 (September 2012): 129–34. http://dx.doi.org/10.4028/www.scientific.net/amr.565.129.

Full text

Abstract:

In this work, grinding test was performed in terms of machining parameters, such as grinding speed, feed rate, etc., in order to study effect of ultrasonic vibration in grinding. The design of experiment (DOE) approach was used for an optimal condition of ultrasonic assisted grinding, which can minimize the grinding forces. In DOE, ultrasonic amplitude power, feed rate, and rotation speed of spindle were chosen as the major machining factors. The grinding forces were measured and compared between the conventional grinding and ultrasonic assisted grinding. From the experiment, it was found that the grinding forces decreased as the ultrasonic vibration power and the rotation speed of spindle increased while the grinding force was reduced as the feed rate increased. In addition, regression model was formulated for obtaining optimal grinding condition.

APA, Harvard, Vancouver, ISO, and other styles

48

Gao, Guo Fu, Bo Zhao, Dao Hui Xiang, and Qing Hua Kong. "Research on the Force Characteristics in Ultrasonic Grinding Nano-Zirconia Ceramics." Key Engineering Materials 375-376 (March 2008): 258–62. http://dx.doi.org/10.4028/www.scientific.net/kem.375-376.258.

Full text

Abstract:

Nano-ceramics possessed ascendant mechanical property and physical characteristics contrast with traditional engineering ceramics, and its machining with ultrasonic assistance has been considered one of the most efficient methods. In the present paper a novel ultrasonic grinding vibration device has been developed and the theoretical model of grinding force has been created for ultrasonic vibration grinding. The influences of grinding parameters on grinding forces were tested with self-designd acoustic system based on local resonance. According to the test data, the effect of depth of cut and wheel velocity on the grinding force with/without ultrasonic assistance was analyzed. Both in common and ultrasonic grinding the normal grinding force and tangential grinding force descend against the wheel velocity, while ascend along with the depth of cut. In any case the grinding force in ultrasonic grinding was not more that that in common grinding.

APA, Harvard, Vancouver, ISO, and other styles

49

Nie, Zhen Guo, Gang Wang, Yong Liang Lin, Xiang Su, and Yi Ming Rong. "Modeling and Simulation of Single Abrasive-Grain Cutting Process in Creep Feed Grinding." Key Engineering Materials 693 (May 2016): 1241–46. http://dx.doi.org/10.4028/www.scientific.net/kem.693.1241.

Full text

Abstract:

Single abrasive-grain cutting is the key research point in grinding process. Because of the narrow space and quick velocity, modeling and simulation method is an approach way to study the single grain cutting. This paper studied the distribution of flow stress and plastic strain, the temperature field near cutting grain. Then experiment was conducted to measure the cutting forces in single grain cutting test. The validation shows good correctness and accuracy of FEA model. Then orthogonal simulation test was carried out to research the influence factors for the grinding forces and temperature distribution. It is found that creep feed grinding has a large grinding forces than high speed grinding in the grain scales. But the maximum temperature value is affected both by depth and speed distinctly.

APA, Harvard, Vancouver, ISO, and other styles

50

Yin, Shao Hui, Yu Wang, Yu Feng Fan, Yong Jian Zhu, Feng Jun Chen, Tian Hu, and Jian Bo He. "One-Point Nano-Grinding for Micro-Aspherical Glass Lens Mould." Advanced Materials Research 97-101 (March 2010): 4217–20. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.4217.

Full text

Abstract:

This paper reported an experimental study on ultra-precision grinding for micro aspherical lens mould. One-point grinding mode and inclined axis grinding mode are employed and investigated in grinding process. Grinding test of a micro-lens mould using form error compensation technique is conducted. The experimental results show that ground micro aspheric mould surfaces with form (PV) around 0.122 µm and a roughness (Ra) less than 2 nm is achieved successfully.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Grinding test'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles