Influence of Abrasive Grain Geometrical Characteristics on the Grinding Quality

Baidakova, N. V.; Orlova, T.N.

doi:10.1016/j.proeng.2017.10.459

Cited by 12 publications

(6 citation statements)

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“…There are many factors that contribute to determining the width of the elements on the grinded surface of our untreated sample, including grain spacing, the shape of grain, grinding tool, and the grinded material [31]. As for the treated sample, a significant increase was observed in the RSm value.…”

Section: Rskmentioning

confidence: 93%

Experimental Investigation on Roughness Parameters of 42CrMo4 Steel Surface During Nitrocarburizing Treatment

Ghelloudj¹,

Hannachi²,

Djebaili³

2022

Tribol. Ind.

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To evaluate the performance characteristics of various surfaces, a detailed and precise description of the surface's micro-geometry properties is required. In this context, roughness is a reliable indicator of the possible behavior of mechanical piece performance, since distortions on the surface can form a direct cause for cracks or corrosion. As a result, characterization of surface roughness is very important for zero-defect fabrication. This paper investigates the 2D roughness parameters of a 42CrMo4 steel surface before and after nitrocarburizing treatment. The latter was accomplished at 580 °C for 10 hours in a salt bath containing sodium cyanates and potassium carbonates. A surface profilometer was used to analyze the influence of nitrocarburizing treatment on the material's surface roughness parameters behavior. The parameters that comprehensively describes the surface structure, namely the amplitude, spacing, hybrid parameters, and material ratio parameters were highlighted. The results of the experiments indicated that the nitrocarburizing treatment was effective in increasing almost all the 2D roughness parameters of the 42CrMo4 steel surface.

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Section: Rskmentioning

confidence: 93%

Experimental Investigation on Roughness Parameters of 42CrMo4 Steel Surface During Nitrocarburizing Treatment

Ghelloudj¹,

Hannachi²,

Djebaili³

2022

Tribol. Ind.

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“…After all the grains on the surface of the grinding wheel pass through the workpiece surface point (x i , y i ), the lowest value of all grains at that point is the surface height of that point. Therefore, any point (x, y, z) on the grinding wheel surface can be expressed as Equation (6). The height z of any point on the workpiece surface is obtained by calculating the minimum value of each grain passing through the point through Equation ( 6), and taking the minimum value of all values.…”

Section: Workpiece Surface Model Generationmentioning

confidence: 99%

“…Furthermore, grinding is essential to ensuring the machining accuracy and surface quality of hard and brittle materials. The grinding wheel surface profile precision directly affects the workpiece material removal rate, surface integrity, ground surface roughness, and so on [6][7][8]. Dressing grinding wheel surface to achieve an ideal wheel surface profile is meaningful for maintaining the material removal efficiency and machining workpiece surface accuracy.…”

Section: Introductionmentioning

confidence: 99%

Research on the Grinding Performance of an Electroplated Coarse-Grained Diamond Grinding Wheel by Dressing

Xia,

Deng,

et al. 2024

Machines

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The coarse-grained electroplated diamond grinding wheels is increasingly favored in precision grinding of hard and brittle materials owing to its high material removal efficiency, high wear resistance and steady surface contour accuracy. However, how to determine whether the dressed grinding wheel surface topography can achieve the desired precision ground surface quality is still a huge challenge to this day. In this paper, a novel numerical simulation model, which was established basing on the statistical features of actual electroplated coarse-grained diamond grinding wheel and the kinetics of the grinding process, was proposed for theoretically and thoroughly studying the influence of the surface dressing depth of coarse-grained electroplated diamond grinding wheel on ground workpiece surface morphology. At first, the statistical features of actual electroplated coarse-grained diamond grinding wheel was acquired and a novel numerical grinding wheel surface model was established. Subsequently, a numerical ground workpiece surface simulation model was also developed. And then, the evolving mechanism of the grinding wheel surface topography with the dressed wheel surface abrasive grain protrusion height was theoretically studied by numerical simulation. Moreover, the influence of the wheel surface abrasive grain protrusion height on the ground surface roughness was thoroughly researched by means of theoretical model and experiments. The simulation and experiments results in this paper indicated that precision ground workpiece surface with nano-scale surface roughness can be acquired by grinding with a dressed grinding wheel with a certain abrasive grain protrusion height of 25% of the typical abrasive size. Comparing with the undressed grinding wheel (grinding wheel with original surface topography and not be dressed), the surface roughness Sa and Sq of the surface ground with a well-dressed wheel can achieving a significant decrease of 97.75–99.77% and 97.57–99.73%, respectively. Therefore, carefully dressing the electroplated coarse-grained diamond grinding wheel is of great significance for obtaining a precision ground workpiece surface quality.

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“…Despite the large number of advantages presented above, there is a relatively low efficiency in the use of the potential capacities of coated abrasive tools, as well as of any other abrasive tools. In many ways, this result is predetermined by the use of standard abrasive in the manufacture of tools, when the shape and orientation parameters of grains relative to the substrate are not taken into account [5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Tthe Grinding Grains Shape and Orientation on Performance of Coated Abrasive Tools

2019

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The issues of the influence of the orientation and shape of grinding grains of coated abrasive tools on their basic performance characteristics are considered in the article. The advantages of machining with flexible grinding tools are listed. The features of the abrasive grains contained in tools on a flexible basis are presented. The low efficiency of using standard tools is justified. A method is described for increasing the efficiency of the grinding process with tools on a flexible basis due to an integrated approach to the design of new tool designs. It is proposed to use abrasive grains of a given shape and oriented in a certain way relative to the surface of the tool base. The main stages of work related to the development of new tool designs and studies of their operational characteristics are presented. Experimental data of the dependencies of cutting capability, wear, temperature in the cutting zone, power spent on cutting, and the cut surface quality on the shape and the orientation angle of grinding grains are presented. Practical recommendations for the application of tools containing in their structure certain varieties of grinding grains are proposed.

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Influence of Abrasive Grain Geometrical Characteristics on the Grinding Quality

Cited by 12 publications

References 0 publications

Experimental Investigation on Roughness Parameters of 42CrMo4 Steel Surface During Nitrocarburizing Treatment

Experimental Investigation on Roughness Parameters of 42CrMo4 Steel Surface During Nitrocarburizing Treatment

Research on the Grinding Performance of an Electroplated Coarse-Grained Diamond Grinding Wheel by Dressing

The Influence of Tthe Grinding Grains Shape and Orientation on Performance of Coated Abrasive Tools

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