Calculation of wear of teeth of open tooth gears

2021 ◽  
pp. 9-11
Author(s):  
H.K. Ishmuratov
Keyword(s):  
Abrasive Wear ◽  
Carbon Content ◽  
Friction Force ◽  
Abrasive Particles ◽  
Abrasive Grains ◽  
Surface Damages

Abrasive wear and, in particular, wear of gear couplings in the presence of abrasive particles is studied. Under conditions of contact abrasive wear, with an increase in steel hardness and carbon content, the volumes of single surface damages caused by crushing of abrasive particles decrease, while the process does not qualitatively change. The direct fracture of the material in wear continues to be decisive. Keywords: gear coupling, wear, adhesion, abrasive grains, loading, friction force [email protected]

Study of Friction Coefficient and Friction Force on Magnetic Abrasive Finishing

2011 ◽  
Vol 675-677 ◽  
pp. 663-666
Author(s):  
Yan Chen ◽  
Akira Shimamoto ◽  
X. Gao ◽  
M.M. Zhang
Keyword(s):  
Friction Coefficient ◽  
Friction Force ◽  
Magnetic Particles ◽  
Good Effect ◽  
Magnetic Abrasive Finishing ◽  
Abrasive Particles ◽  
Abrasive Finishing ◽  
Alumina Particles ◽  
The Cost ◽  
Grinding Efficiency

In order to enhance grinding efficiency of the magnetic abrasive finishing (MAF) method, we usually use the sinter method or the cementation method to mix the magnetic particles and abrasive particles together. However, the cost is high, and the variety is incomplete. Therefore, with the ferromagnetism to iron particles, the alumina particles and the lipin three kind of material simple mixture participate in the magnetic abrasive finishing which directly polishes, already obtained the good effect through the experiment. This paper analyses and explains the characteristic of the friction coefficient and the friction force on magnetic abrasive finishing according as account and experiment data.

scholarly journals Abrasive wear resistance of selected woods

2017 ◽  
Vol 63 (No. 2) ◽  
pp. 91-97
Author(s):  
Brožek Milan
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Sweet Cherry ◽  
Sour Cherry ◽  
Wear Intensity ◽  
Horse Chestnut ◽  
Silver Fir ◽  
Abrasive Particles ◽  
Volume Weight ◽  
Pin On Disk

In this contribution, the results of the wear resistance study of 10 sorts of wood (apple, aspen, beech, hornbeam, horse-chestnut, London plane, mahogany, silver fir, sour cherry and sweet cherry) are published. The laboratory tests were carried out using the pin-on-disk machine when the abrasive clothes of three different grits (240, 120 and 60) were used. The wear intensity was assessed by the volume, weight and length losses of the tested samples. From the results of the carried out tests it follows that the wear resistance of different woods is different. It was proved that the wear resistance of different woods depends on the abrasive particles size, too. Also the technical-economical evaluation was part of the carried out tests. It was univocally proved that at the intensive abrasive wear using the abrasive cloth the best results were shown by hard woods, e.g. apple, beech or mahogany. Soft woods, e.g. horse-chestnut, silver fir or sweet cherry, are cheap, but their wear is bigger compared to hard woods.

Role of Micro- and Nanofillers in Abrasive Wear of Composites Based on Ultra-High Molecular Weight Polyethylene

2014 ◽  
Vol 1040 ◽  
pp. 148-154 ◽  
Author(s):  
Sergey Panin ◽  
Lyudmila А. Kornienko ◽  
Nguyen Xuan Thuc ◽  
Larisa R. Ivanova ◽  
Sergey V. Shilko
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Sliding Friction ◽  
Abrasive Wear Resistance ◽  
Dry Sliding ◽  
Cu Nanoparticles ◽  
Abrasive Particles ◽  
Ultra High Molecular Weight ◽  
Fixed Abrasive

The abrasive wear of pure UHMWPE as well as one filled with nanoand microparticles (fibers) were investigated. It was found that abrasive wear resistance of microcomposites (containing AlO(OH) and Al2O3microparticles) can grow up by 16-18 times in comparison with pure UHMWPE depending on the strength and size of the filler as well as abrasive grit. Nanofillers (AlO(OH) and carbon nanofibers (CNF) as well as SiO2and Cu nanoparticles) as opposed to microfillers can improve abrasive wear resistance of UHMWPE in a significantly less degree (up to 50 %). Abrasive wear resistance of nanocomposites weakly depends on the type of filler and is defined by the polymeric matrix (permolecular) and counter-face abrasive grit. The comparative analysis of the wear mechanisms of UHMWPE based micro-and nanocomposites under abrasive wear (fixed abrasive particles) and dry sliding friction is carried out.

scholarly journals Reuse of abrasive particles in abrasive waterjet cutting

Mechanik ◽  
2017 ◽  
Vol 90 (1) ◽  
pp. 62-63
Author(s):  
Daniel Krajcarz ◽  
Sławomir Spadło
Keyword(s):  
Aluminium Alloy ◽  
Surface Quality ◽  
Geometrical Structure ◽  
Abrasive Waterjet ◽  
Experimental Investigations ◽  
Abrasive Particles ◽  
Waterjet Cutting ◽  
Abrasive Grains ◽  
Abrasive Waterjet Cutting ◽  
Cutting Surface

Presented is the possibility of reuse abrasive grains in abrasive waterjet cutting. The disintegration particles of garnet # 80 used to create a new abrasive garnet, corresponding to the fresh garnet # 120. In order to determine the ability of cutting recycling abrasive grains was carried out the aluminium alloy cutiing by using fresh and recycling garnet # 120. The experimental investigations of cutting surface quality focused on evaluation of surface geometrical structure.

Effects of dislodgment and size of abrasive grains on abrasive wear

Wear ◽  
1992 ◽  
Vol 155 (2) ◽  
pp. 297-307 ◽  
Author(s):  
Terumasa Hisakado ◽  
Hiroshi Suda ◽  
Toshimasa Tsukui
Keyword(s):  
Abrasive Wear ◽  
Abrasive Grains

Abrasive wear mechanisms of multi-components ferrous alloys abraded by soft, fine abrasive particles

Wear ◽  
2010 ◽  
Vol 269 (11-12) ◽  
pp. 911-920 ◽  
Author(s):  
José Daniel B. de Mello ◽  
Andreas A. Polycarpou
Keyword(s):  
Abrasive Wear ◽  
Wear Mechanisms ◽  
Ferrous Alloys ◽  
Abrasive Particles

scholarly journals Effect of Carbon Content on Heat Treatment Behavior of Multi-Alloyed White Cast Iron for Abrasive Wear Resistance

2015 ◽  
Vol 56 (5) ◽  
pp. 720-725 ◽  
Author(s):  
Jatupon Opapaiboon ◽  
Prasonk Sricharoenchai ◽  
Sudsakorn Inthidech ◽  
Yasuhiro Matsubara
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Cast Iron ◽  
Abrasive Wear ◽  
Carbon Content ◽  
White Cast Iron ◽  
Abrasive Wear Resistance

scholarly journals Remarks on Wear Transitions Related to Hardness and Size of Abrasive Particles

2021 ◽  
Author(s):  
Giuseppe Pintaude
Keyword(s):  
Abrasive Wear ◽  
Size Effects ◽  
Critical Values ◽  
Abrasive Particles ◽  
Severe Wear ◽  
Wear Rates ◽  
Particle Fragmentation ◽  
Current State ◽  
State Of Art

Abrasive wear is highly dependent on the characteristics and properties of abrasive particles. Their hardness and size can define the severity of abrasion in terms of wear rates. Typically, critical values have been empirically determined to define the transition between mild and severe wear. This review aims to update some of the issues related to these critical values and their relations to abrasive wear. After presenting the current state-of-art, the following items are discussed: a) the scratchability of materials; b) the particle fragmentation associated with size effects; and c) description of abrasion severity.

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