scholarly journals The Influence of Ceramic Binder Grinding Wheel Structural and Mechanical Characteristics on its Durability

2016 ◽  
Vol 150 ◽  
pp. 916-919 ◽  
Author(s):  
V.M. Shumyacher ◽  
A.V. Slavin ◽  
S.A. Kryukov
Keyword(s):  
Mechanical Characteristics ◽  
Grinding Wheel ◽  
Ceramic Binder

scholarly journals Research on selection of abrasive grain size and cutting parameters when grinding of interrupted surface using aluminum oxide grinding wheel with ceramic binder

2022 ◽  
pp. 93-102
Author(s):  
Do Duc Trung ◽  
Le Dang Ha
Keyword(s):  
Surface Roughness ◽  
Grain Size ◽  
Aluminum Oxide ◽  
Feed Rate ◽  
Depth Of Cut ◽  
Grinding Wheel ◽  
Grinding Process ◽  
Testing Sample ◽  
Abrasive Grain ◽  
Ceramic Binder

In this article, a study on intermittent surface grinding using aluminum oxide grinding wheel with ceramic binder is presented. The testing material is 20XH3A steel (GOST standard – Russian Federation). The testing sample has been sawn 6 grooves, with the width of each groove of 10 mm, the grooves are evenly distributed on the circumference of sample. The testing sample resembles a splined shaft. An experimental matrix of nine experiments has been built by Taguchi method, in which abrasive grain size, workpiece speed, feed rate and depth of cut were selected as input variables. At each experiment, surface roughness (Ra) and roundness error (RE) have been measured. Experimental results show that the aluminum oxide and ceramic binder grinding wheels are perfectly suitable for grinding intermittent surface of 20XH3A steel. Data Envelopment Analysis based Ranking (DEAR) method has been used to solve the multi-objective optimization problem. The results also showed that in order to simultaneously ensure minimum surface roughness and RE, abrasive grain size is 80 mesh, workpiece speed is 910 rpm, feed rate is 0.05 mm/rev and depth of cut is 0.01 mm. If evaluating the grinding process through two criteria including surface roughness and RE, depth of cut is the parameter having the greatest effect on the grinding process, followed by the influence of feed rate, workpiece speed, and abrasive grain is the parameter having the least effect on the grinding process. In addition, the effect of each input parameter on each output parameter has also been analyzed, and orientations for further works have also been recommended in this article

Mechanical Strength of Abrasive Segment Formed by the High-Frequency Discretization of Grinding Wheel

2019 ◽  
Vol 973 ◽  
pp. 134-138
Author(s):  
Aleksey V. Morozov ◽  
Vladimir G. Gusev
Keyword(s):  
Mechanical Strength ◽  
High Frequency ◽  
Energy Flow ◽  
Mechanical Characteristics ◽  
Grinding Wheel ◽  
High Mechanical Strength ◽  
Geometrical Characteristics ◽  
Cutting Surface

Geometrical characteristics of a discrete grinding wheel, which influence on a mechanical strength of the segments, formed during a high-frequency discretization of the cutting surface by highly concentrated energy flow, were defined. The analytical dependences, which establish interrelation of actual stresses in dangerous sections of a discrete grinding instrument with geometrical and mechanical characteristics of a segment, were determined. On a base of these analytical dependences a designing of a discrete grinding wheel with highly frequency discretization of a cutting surface is executed. The scientific recommendations for choice of dimensional characteristics of discrete cutting surface were proposed. Observance of these recommendations allows getting the abrasive segments with a high mechanical strength.

scholarly journals Supporting Body Material for Ceramic Diamond Grinding Tools

2020 ◽  
Vol 60 (2) ◽  
pp. 47-52
Author(s):  
Barbara Staniewicz-Brudnik ◽  
Paweł Figiel ◽  
Grzegorz Skrabalak ◽  
Małgorzata Karolus
Keyword(s):  
Bending Strength ◽  
Grinding Wheel ◽  
Scanning Microscope ◽  
Sharp Transition ◽  
Ceramic Binder ◽  
Operational Tests ◽  
Backscattered Electron ◽  
Grinding Tool ◽  
Abrasive Tools ◽  
Materials Used

The characteristics of abrasive tools (the type of grinding wheel, granulation of the super hard grain, type of structure, hardness, and the type of binder) contain information on the type of supporting body materials used (e.g., dural, ceramic, steel). In this work, diamond wheels were obtained on ceramic supporting bodies, containing a sintered mixture of white alumina 99A granulation F320, green silicon carbide 99A granulation F320, and binder Ba23 bis, together with modifiers. The mechanical properties (hardness, bending strength) of ceramic supporting bodies were tested. The structure of the phase boundary of the ceramic supporting body–abrasive grinding tool was analyzed on a BEC (backscattered electron composition) image by using SEM (Scanning Electron Microscopy). It was found that the hardness of the supporting body was slightly lower (70–75 HRB) than the diamond wheels (76–81 HRB). The bending strength of the supporting bodies was high (85 ±2 MPa). The BEC image from the scanning microscope did not show a sharp transition between the ceramic supporting body and the grinding wheel. Preliminary operational tests showed significant improvement in grinding wheel efficiency in comparison to diamond tools with the same ceramic binder on a duralumin supporting body during machining of G30 sintered carbide bush.

Mechanical characteristics of the EGJ after fundoplication compared to normal subjects and GERD patients

2001 ◽  
Vol 120 (5) ◽  
pp. A112-A112 ◽  
Author(s):  
J CURRY ◽  
G SHI ◽  
J PANDOLFINO ◽  
R JOEHL ◽  
J BRASSEUR ◽  
...  
Keyword(s):  
Mechanical Characteristics ◽  
Normal Subjects

Discussion on “The grinding wheel and production” at the North-Eastern Section of the Institution

1942 ◽  
Vol 21 (8) ◽  
pp. 315
Author(s):  
Bowen ◽  
Vickery ◽  
Buchanan ◽  
Swallow ◽  
Perks ◽  
...  
Keyword(s):  
Grinding Wheel ◽  
The North ◽  
North Eastern

Evaluating the influence of grinding mode on part’s accuracy and grinding wheel’s wear in grinding profile for ball bearing's inner ring groove

2018 ◽  
Vol 56 (4) ◽  
pp. 531
Author(s):  
Nguyen Anh Tuan ◽  
Vu Toan Thang ◽  
Nguyen Viet Tiep
Keyword(s):  
Theoretical Analysis ◽  
Current Issue ◽  
Grinding Wheel ◽  
Machining Accuracy ◽  
Ring Groove ◽  
Production Practice ◽  
Wear Of Grinding Wheel ◽  
Output Factors ◽  
Grinding Operations ◽  
Technological Mode

Determining the influence of technological mode factors on machining accuracy is always an current issue in the production practice especially for grinding operations. This paper presents some research results to determine the effect of grinding parameters on grinding wheel’s wear and part’s accuracy in grinding profile for ball bearing's inner ring groove. From theoretical analysis and experimental results, the article assesses the influence of grinding mode factors on output factors. Based on that, the economic limitation wear of grinding wheel at three different grinding modes is determined.

The Influence of Cross Edge Effect on Mechanical Characteristics of Electrodynamic Damping Element with Double Hollow Rotor

2016 ◽  
Vol 11 (4) ◽  
pp. 441
Author(s):  
Marina Gumerova ◽  
Flur Ismagilov ◽  
Irek Khairullin ◽  
Viacheslav Vavilov ◽  
Oksana Yushkova ◽  
...  
Keyword(s):  
Edge Effect ◽  
Mechanical Characteristics
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