Deformational Cutting as a Basis for Creating Self-Lubricating Sliding Friction Units

2021 ◽  
Vol 2021 (13) ◽  
pp. 1786-1791
Author(s):  
N. N. Zubkov ◽  
S. G. Vasil’ev ◽  
D. V. Tsukanov
Keyword(s):  
Sliding Friction ◽  
Friction Units ◽  
Deformational Cutting

Tribotechnical characteristics of hard alloys in sliding friction units

2020 ◽  
pp. 87-97
Author(s):  
K. D. Khromushkin ◽  
B. G. Ushakov ◽  
A. V. Kochergin ◽  
R. A. Suleev ◽  
O. N. Parmenova
Keyword(s):  
Experimental Data ◽  
Sliding Friction ◽  
Heating Temperature ◽  
Hard Alloys ◽  
Friction Units ◽  
Wear And Friction ◽  
Friction Path ◽  
Friction Parameters ◽  
Tribotechnical Characteristics ◽  
Temperature Surface

The paper presents experimental data on the study of the friction parameters of hard alloys in sliding friction units, including the heating temperature, surface roughness, wear and friction coefficient, depending on the duration of the test and the friction path.

Influence of sliding bearing design on efficiency of the fluoroplast macromodifier for antifriction carbon plastics

2021 ◽  
pp. 65-75
Author(s):  
I. V. Lishevich ◽  
A. V. Anisimov ◽  
G. I. Nikolaev ◽  
A. S. Savelov ◽  
A. S. Sargsyan
Keyword(s):  
Sliding Friction ◽  
Friction Unit ◽  
Sliding Bearings ◽  
Friction Zone ◽  
Reinforced Plastics ◽  
Friction Units ◽  
Carbon Plastics ◽  
Key Factor ◽  
Fiber Reinforced Plastics ◽  
Bearing Design

The paper presents the results of laboratory and bench tests of UGET and FUT antifriction carbon plastics macro modified with PTFE. The efficiency (friction coefficient reduction) of this modification of carbon fiber reinforced plastics has been confirmed. The dependence of the method’s efficiency on the design of sliding friction units has been established. The plastic deformation of the fluoroplastic is the key factor that determines the effectiveness of the modifier when designing sliding bearings. The design of the friction unit should exclude the pressure gradient in the fluoroplastic protectors and prevent the possibility of an uncontrolled exit of the fluoroplastic from the friction zone.

Influence of the initial roughness of the antifriction carbons surface on tribotechnical characteristics and running-in coating efficiency

2021 ◽  
pp. 158-169
Author(s):  
I. V. Lishevich ◽  
A. V. Anisimov ◽  
A. S. Savelov ◽  
A. S. Sargsyan ◽  
M. Yu. Sobolev
Keyword(s):  
Surface Roughness ◽  
Friction Surface ◽  
Sliding Friction ◽  
Friction Units ◽  
Carbon Plastics ◽  
Coating Efficiency ◽  
Optimal Surface ◽  
Mechanical Cutting ◽  
The Relationship ◽  
Tribotechnical Characteristics

The roughness of the friction surface of antifriction carbons used in sliding friction units lubricated with water affects the tribotechnical characteristics during the running-in process. This article experimentally substantiates the range of optimal surface roughness formed during mechanical cutting of carbon plastics in terms of tribotechnical efficiency. The results of a series of tribotechnical tests using various methods under various conditions (contact pressure, sliding speed, counterbody materials) are presented. The relationship between the initial roughness and the effectiveness of a running-in coating based on FORUM® polytetrafluoroethylene powder is established.

scholarly journals An Application of Antifriction Coatings to Increase the Lifetime of Friction Units

2021 ◽  
Vol 346 ◽  
pp. 03024
Author(s):  
Aleksandr V. Antsupov ◽  
Artem A. Fedulov ◽  
Alexey V. Antsupov ◽  
Victor P. Antsupov
Keyword(s):  
Thin Films ◽  
Sliding Friction ◽  
Experimental Studies ◽  
Rolling Friction ◽  
Polymer Coatings ◽  
Flexible Tool ◽  
Friction Units ◽  
Antifriction Coatings ◽  
Friction Surfaces ◽  
Metal Polymer

This article presents a generalization of the results of theoretical and experimental studies on increasing the reliability of friction units by making antifriction coatings on the working surfaces with a flexible tool. The principle scheme and the essence of the method of cladding with a flexible tool (CFT) - shock-frictional forming of thin films from various materials on the surface of the workpiece with flexible elements of rotating metal brushes are described. Versions of cladding machinery and many parts of movable joints with various forms of friction surfaces, on which various metal, polymer, single and two-layer antifriction coatings are applied, are presented. The modification of the frictional application of polymer coatings is shown. The following is a brief description of the most significant effective results for increasing the durability of the industrial sliding friction and rolling friction units.

Nonmetal antifriction materials for sliding friction units

2012 ◽  
Vol 3 (6) ◽  
pp. 524-533 ◽  
Author(s):  
V. E. Bakhareva ◽  
G. I. Nikolaev ◽  
A. V. Anisimov
Keyword(s):  
Sliding Friction ◽  
Antifriction Materials ◽  
Friction Units

Formation of MAO-coatings of high thickness on titanium alloys and evaluation of tribological properties in friction pair with bronze

2021 ◽  
pp. 41-51
Author(s):  
V. G. Ivanov ◽  
V. S. Bublikov
Keyword(s):  
Experimental Data ◽  
Titanium Alloys ◽  
Tribological Properties ◽  
Sliding Friction ◽  
Friction Pair ◽  
Microarc Oxidation ◽  
Tribological Characteristics ◽  
Friction Units ◽  
Antifriction Coatings ◽  
Oxidation Parameters

The article presents experimental data on the effect of microarc oxidation parameters on the thickness and structure of the MAO-coating and its tribological characteristics in friction against bronze. The appli- cation of thick antifriction coatings by the MAO-method on titanium alloys has been developed. The possibility of using MAO-coatings of high thickness in sliding friction units was investigated.

scholarly journals Aluminum Composite Materials Providing Extended Service Life

2021 ◽  
pp. 44-54
Author(s):  
Yulia A. Kurganova ◽  
Alexey G. Kolmakov ◽  
Sergey V. Kurganov
Keyword(s):  
Dry Friction ◽  
Sliding Friction ◽  
Aluminum Matrix ◽  
Aluminum Matrix Composite ◽  
Aluminum Composite ◽  
Phase Mixing ◽  
Friction Units ◽  
Sic Particles ◽  
Tribotechnical Characteristics ◽  
Better Than

Hardness and tribotechnical characteristics were investigated under conditions of dry sliding friction on steel obtained by liquid-phase mixing of Aluminum-Matrix Composite (AMC) materials based on aluminum alloys AK12, D16, V124, AL9, AL25, reinforced with silicon carbide SiC particles with a size of 28 μm with a content of 5, 10 or 15% by volume. AMC performed better than matrix alloys and the commonly used antifriction aluminum alloy AOM 2-1. The dry friction coefficient was 1.5-3 times lower on average, and the volumetric wear rate was 5-9 times lower. An increase in the content of SiC particles in the composite from 5 to 20 vol.%. As a rule, leads to an improvement in the tribotechnical characteristics. The composites obtained have shown a sufficiently high operational suitability for work in friction units with steels both in dry friction and in friction with lubrication.

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