0

Full Content is available to subscribers

Subscribe/Learn More  >

Influence of Surface Roughness on Friction and Contact Resistance in Sliding Electrical Contacts

[+] Author Affiliations
Dinesh G. Bansal, Jeffrey L. Streator

Georgia Institute of Technology, Atlanta, GA

Paper No. IJTC2007-44355, pp. 1057-1059; 3 pages
doi:10.1115/IJTC2007-44355
From:
  • ASME/STLE 2007 International Joint Tribology Conference
  • ASME/STLE 2007 International Joint Tribology Conference, Parts A and B
  • San Diego, California, USA, October 22–24, 2007
  • Conference Sponsors: Tribology Division
  • ISBN: 0-7918-4810-8 | eISBN: 0-7918-3811-0
  • Copyright © 2007 by ASME

abstract

An experiment is conducted to investigate the role of surface roughness on the coefficient of friction and contact resistance of sliding electrical contacts. A hemispherical pin is sliding along both smooth and rough 2-meter rail surface. Tests are performed at both low and moderate sliding speed and for a range of electrical current densities, ranging from 0 to about 12 GA/m2 . It was found that surface roughness had a significant influence on the coefficient of friction, with the smoother surfaces exhibiting higher coefficients of friction. Contact resistance, on the other hand, did not show as strong an effect of surface roughness, except for a few parameter combinations. At the higher current densities studied (>10 GA/m2 ), it was found that the contact resistance values tended to be on the order of 1 mΩ, independent of load, speed and roughness. This convergence may be due to presence of liquid metal film at the interface, which established ideal electrical contact.

Copyright © 2007 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In