Influence of high velocities and high current densities on the friction and wear behavior of copper-graphite brushes

Casstevens, J.M.; Rylander, H. G.; Eliezer, Z.

doi:10.1016/0043-1648(78)90142-4

Cited by 54 publications

(12 citation statements)

References 4 publications

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“…To examine and determine the importance of the elements that influence brush wear, four control factors were selected. A number of previous studies have indicated that these factors have significant influence on brush wear [5][6][7][8]. The combination of factors was also made by the level of experiment using the L9 (3 4 ) orthogonal array according to the DOE.…”

Section: Setting the Doe Based On Orthogonal Arraymentioning

confidence: 99%

Determination of accelerated condition for brush wear of small brush-type DC motor in using Design of Experiment (DOE) based on the Taguchi method

Shin

Lee

2011

J Mech Sci Technol

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This research was conducted to understand friction and wear due to mechanical and electrical contact between a brush and a commutator, which play an important role in driving brush-type DC motors, and to predict the motor life through brush wear. To identify the influencing factors, the variables used in the experiments were the operating voltage, the current load, the rotational speed, and the environmental temperature. The design of experiment used for the analysis of brush wear was based on the Taguchi method. An independent condition was provided for each factor during the experiment. The results indicate the high contribution of current and temperature to the wear behavior. The operation voltage showed negligible influence on the wear behavior.

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Section: Setting the Doe Based On Orthogonal Arraymentioning

confidence: 99%

Determination of accelerated condition for brush wear of small brush-type DC motor in using Design of Experiment (DOE) based on the Taguchi method

Shin

Lee

2011

J Mech Sci Technol

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“…The influence factors of wear loss include: brush material, density of electric current, pressure of the spring, circumferential velocity of the motor, surrounding environment and medium. [10][11][12][13] In this test, pressure of the spring, circumferential velocity of the motor, surrounding environment and medium are the same, wear test of different electric brush are performed. SEM is used to observe the morphology of brush surface.…”

Section: Morphology Of Wear Surface Of Electric Brushmentioning

confidence: 99%

Study on Friction and Wear Properties of Silver Matrix Brush Material With Different Additives

et al. 2013

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Friction and wear processes of AgCuX (G, CF and AlN) composites-CuAgV alloy friction pair and effects of different additive content in silver based composite on friction and wear behavior are studied in this paper. The microstructure of the brush wear surface is observed by SEM. The results show that when graphite content is up to 9 wt.%, Ag-Cu-CF-G composite exhibits the best wear properties; when the content of aluminum nitride is up to 0.5 wt.%, Ag-Cu-AlN-G composites has the most comprehensive performance. The wear loss of both composites arises with the increase of both pressure and speed, but when speed reaches a critical value, the increased amplitude of wear loss tends to be steady.

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“…Carbon reinforced copper matrix composites (CMCs) are favored with superior properties such as better wear resistance, improved electrical conductivity, etc and are used as contact strips for pantographs in railways and generators or motor technology [1][2][3][4][5]. The major drawback is that, reinforcing carbon in copper matrix can reduce the strength of the composites and it has been considered as a crucial factor limiting its applications [6,7].…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Dry Sliding Wear Behavior of Copper Hybrid Nano Composites Reinforced with MWCNTs and Nano B4C Using Full Factorial Design

Gangatharan¹,

Selvakumar²

2015

Trans Indian Inst Met

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In the present study, full factorial design has been used to optimize the wear test conditions of the copper-multi-walled carbon nanotubes and nano boron carbide reinforced composites prepared through entrenched cold-press sintering method of powder metallurgy. The factors like boron carbide particle, applied load and sliding distance of the wear test have been selected as independent variables. This technique has been designed to achieve momentous effects on two responses, namely specific wear resistance and coefficient of friction and 60 experimental runs have been carried out with one replication. To study the micro structural morphology, particle size, worn surface and wear debris of the prepared copper hybrid nanocomposite, scanning electron microscopy, Atomic force microscopy and X-ray diffraction analysis were used for characterization. The ANOVA results were used to validate the developed design and it shows that the applied load and nano boron carbide addition to the matrix material significantly plays an important role in the wear resistance and coefficient of friction of the hybrid composites respectively. A linear regression equation is developed to relate the responses and the operating factors. The optimal conditions for the wear test were: nano boron carbide particles of 2 wt%, load of 5 N and sliding distance of 500 m for both responses.

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Influence of high velocities and high current densities on the friction and wear behavior of copper-graphite brushes

Cited by 54 publications

References 4 publications

Determination of accelerated condition for brush wear of small brush-type DC motor in using Design of Experiment (DOE) based on the Taguchi method

Determination of accelerated condition for brush wear of small brush-type DC motor in using Design of Experiment (DOE) based on the Taguchi method

Study on Friction and Wear Properties of Silver Matrix Brush Material With Different Additives

Optimizing the Dry Sliding Wear Behavior of Copper Hybrid Nano Composites Reinforced with MWCNTs and Nano B4C Using Full Factorial Design

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