RESEARCH PAPER
Numerical analysis of contact plastic bodies made by aluminium alloy with taking account of micro-roughness surfaces
| 1 | Bialystok University of Technology, Faculty of Mechanical Engineering, Bialystok, Poland |
| 2 | COBRABID Warszawa, Research Center, Poland |
| 3 | Road and Bridge Research Institute, Warsaw, Poland |
Publish date: 2019-01-15
Submission date: 2018-01-14
Acceptance date: 2018-06-17
Journal of Theoretical and Applied Mechanics 2019;57(1):73–84
KEYWORDS
ABSTRACT
The following article describes selected aspects of numerical modeling of the process of
bonding metal alloys with consideration for micro-roughness. Plastic contact between two
deformable bodies is studied within a DEFROM FEM environment. The paper presents
selected numerical analysis results for an aluminum alloy. The mathematical model of surface
roughness has been created on the basis of the surface real profile. The dependence between
the tool lathe angle and the feed has been used to build a numerical model of roughness after
completion of the turning process. The article investigates the impact of wave roughness in
respect to the size effect and the possibility of cold welding as well as the simplification
process of real surface roughness.
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