Evaluation of Abrasive Grain Form

Lyukshin, Vladimir

doi:10.4028/www.scientific.net/amm.682.148

Cited by 9 publications

(4 citation statements)

References 4 publications

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“…A distinctive feature of coated abrasive tools is the working conditions of grains, which, as a rule, is levelled in height during operation and evenly distribute the load among them, which has a positive effect on the grinding process [1][2][3][4].…”

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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Section: Introductionmentioning

confidence: 99%

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

2019

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“…Such conditions should include the following factors [4,5,10,12]:  the cutting speed is estimated at tens of meters per second;  grinding is carried out mainly by fixed abrasive (the design of the tool provides for the presence of grain and post);  there is some effort of pressing the working layer of grains to the material being machined;  the process of micro-cutting during grinding is carried out by a large number of single grinding grains.…”

Section: Introductionmentioning

confidence: 99%

Influence of Shape and Orientation of Grinding Grains on Their Cutting Capacity

et al. 2018

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Abstract. The issues of the influence of orientation and the shape of abrasive grains on one of their most important operational characteristicscutting ability, and also on cutting properties of tools made of them, are considered in the article. Modern approaches to cutting capacity assessment, of both single grains, and loose abrasive mass are analyzed. The original method for the assessment of cutting capacity of a single grinding grain fixed in a rotating disk, implemented in surface grinding, is presented. The experimental data of the dependence of the cutting capacity on the shape and the orientation angle of the grinding grains are presented. In addition, the influence of the shape factor of the flap grinding wheel grains on its cutting capacity is shown. Practical recommendations on the application in practice of various varieties of grinding grains are proposed.

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“…The grains shape in most standard tools varies over a wide range from isometric to lamellar varieties. The geometry of the cutting wedges formed by them and, consequently, their cutting power depends on the configuration of the grains [6]. Two ways are used to obtain grains of a specific shape: direct production of grains with a given shape (spherical corundum and form-corundum) and separation of grains with the required form from the total mass of the abrasive [7].…”

Section: Introductionmentioning

confidence: 99%

Grinding tools made of grains with controlled shape and orientation

Korotkov

2018

MATEC Web Conf.

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The cutting elements of the grinding tools are grains. But only a small part of the grains participates actively in the cumulative cutting process. Each grain has its own arbitrary shape and a chaotic arrangement in the body of the instrument. As a consequence, the geometry of the cutting part of the grains varies over a wide range and this greatly reduces the performance of grinding tools. A new class of tools and technology for their manufacture, in which the shape and orientation of the used grains is controlled, is proposed. The choice of a certain grains shape is ensured by separating the initial mass of the abrasive in a vibratory way into a series of fractions with the same grain form. Orientation of the grains is achieved by applying an electrostatic effect that regulates the grains position in the tool. The pilot batches of grinding wheels cutting, peeling, petal are designed and manufactured, as well as grinding skins and belts with controlled shape and orientation of the grains. Circles and tapes underwent comparative tests with standard tools and showed significant advantages in operation.

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Evaluation of Abrasive Grain Form

Cited by 9 publications

References 4 publications

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

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

Influence of Shape and Orientation of Grinding Grains on Their Cutting Capacity

Grinding tools made of grains with controlled shape and orientation

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