Control of Deformation of Elastic Polymer-Abrasive Circles at their Wear

Podashev, Dmitriy

doi:10.21741/9781644901755-58

Cited by 2 publications

(3 citation statements)

References 8 publications

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“…The established dependences of filament wear on cutting modes qualitatively coincide with the results of studies for similar tools considering the wear process from the point of view of tribology [13,14,15]. The results of the experiments confirm the studies [12,17], in which it was substantiated that wear depends on thermal processes in the machining zone, the material being processed, interference and cutting speed. However, dependence of wear on the mechanical characteristics of the processed materials is not mentioned in these papers.…”

Section: Evaluation Of the Influence Of Processing Parameters On The ...supporting

confidence: 83%

“…The article [17] studies the wear intensity of elastic polymer-abrasive circles when processing the surfaces of parts made of high-strength aluminium alloys. Empirical dependencies of wear on cutting speed and tool deformation are obtained, on the basis of which a method of tool deformation correction with long-term, continuous surface treatment is proposed.…”

Section: Introductionmentioning

confidence: 99%

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Model of Influence of the Machined Material Properties on Wear of the Polymeric-Abrasive Tool Filaments

Honchar

Tryshyn

Павленко

et al. 2023

Strojnícky Časopis - Journal of Mechanical Engineering

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For polymer-abrasive brush tools (PABT) working on CNC machines it is necessary to correct their wear constantly, since it is much higher compared to the wear of metal tools. Based on the dependence of tool wear on machining parameters for various materials, it is necessary to study the influence of the physical and mechanical properties of the material machined. The purpose of the paper is to study the process of finishing the surfaces of parts made of materials of different types with PABT. The analysis of dimensional wear of disc PABTs during the polishing various materials with certain physical and mechanical properties is provided in the article. The polishing was carried out in rational modes that ensure high quality and productivity of surface treatment. The similarity theory and dimensional analysis were used to assess the influence of the properties of the material machined on the intensity of PABT filament wear. To calculate it, dimensionless complexes were established, which take into account the physical and mechanical properties of the machined materials and evaluate their resistance to the penetration of abrasive grains, the ability of the material to absorb mechanical energy in the process of deformation and destruction under the impact of PABT filaments. The developed model was created for the first time. It made it possible to solve the problem of predicting the degree of dimensional wear of the disc PABT when polishing various materials, including difficult-to-machine ones. Prediction of the intensity of PABT filaments wear allows timely correction of the tool position during machining on CNC machines to ensure a constant pressing of the PABT to the surface being machined. The obtained Км material coefficient takes into account the influence of the physical and mechanical properties of the machined material and then estimates the intensity of PABT filaments wear. The KМ material coefficient can also be used to assess the PABT life and calculate the economic efficiency of the parts finishing treatment at the stage of technology development and the selection of polishing tools.

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Section: Evaluation Of the Influence Of Processing Parameters On The ...supporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Model of Influence of the Machined Material Properties on Wear of the Polymeric-Abrasive Tool Filaments

Honchar

Tryshyn

Павленко

et al. 2023

Strojnícky Časopis - Journal of Mechanical Engineering

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“…ри зачистке достаточно большой номенклатуры деталей успешно применяются абразивные лепестковые круги [1][2][3][4][5][6]. Такой круг прямого профиля представляет собой набор лепестков абразивной шкурки, закрепленных под углом к радиальному направлению на наружной поверхности втулки.…”

Section: Introductionunclassified

Features of Machine Grinding of Surfaces with a Flap Wheel

Starodubtseva¹,

Koltsov²,

Vinh³

et al. 2022

Vestnik IzhGTU imeni M.T. Kalashnikova

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In order to obtain the necessary shape of long panels and sheaths, the aircraft industry successfully uses a complex technology of shaping. Grinding, as an operation in a complex technological process, is provided after the operation of shot-peen forming before hardening. It is designed to ensure that the roughness and final aerodynamic shape of the surface meet the requirements established by the drawing of the part. To implement this technology, a special installation UDF-4 (shot-impact forming unit) was designed and manufactured at the Irkutsk National Research Technical University. The version of this installation was equipped with a CNC system and a revolver stripping head with 4-flap wheels. The possibility of choosing the necessary flap wheels in the process of grinding, depending on the curvature and width of the treated surface, significantly expanded the technological capabilities of the installation. The elastic abrasive flap wheels of a straight profile used in production have proven themselves well both in terms of grinding performance and tool durability. However, practice has shown that due to the complex impact of abrasive petals during contact with the treated surface, a special zone of uneven impact along the length of the contact of the petals is formed during grinding. The results of experimental studies have shown that the roughness of the treated surface is significantly improved when the direction of movement of the flap wheels feed in the contact zone is changed from oncoming to passing. The paper presents experimental data on studies of changes in surface roughness in the contact zone with the abrasive flap wheels during grinding, depending on the processing modes, as well as the results of an experimental study of the quality of the treated surface with counter and passing feed.

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Control of Deformation of Elastic Polymer-Abrasive Circles at their Wear

Cited by 2 publications

References 8 publications

Model of Influence of the Machined Material Properties on Wear of the Polymeric-Abrasive Tool Filaments

Model of Influence of the Machined Material Properties on Wear of the Polymeric-Abrasive Tool Filaments

Features of Machine Grinding of Surfaces with a Flap Wheel

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