Effect of Tool Surface Roughness on Friction Behaviorof Lubricant Coating in Cold Forging
نویسندگان
چکیده
منابع مشابه
Effect of surface roughness on steel-steel dry friction coefficient
The influence of surface roughness magnitude and direction on dry static friction coefficient between two similar steel samples has been studied through an experiment. A testing apparatus has been designed and fabricated to measure the friction coefficient for a few forms of surface asperity. According to the results of the experiments, dry friction coefficient is affected by both magnitude and...
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متن کاملBasic study on the influence of liquid lubricant on contact state in cold forging processes
In cold forging processes the tribological conditions are very important for process feasibility and tool lifetime. Since boundary and mixed lubrication conditions are predominant in cold forging processes, the appearing real contact area which is influenced significantly by the topography of tool and workpiece has a major impact on the friction conditions. Against the background of current tre...
متن کاملeffect of surface roughness on steel-steel dry friction coefficient
the influence of surface roughness magnitude and direction on dry static friction coefficient between two similar steel samples has been studied through an experiment. a testing apparatus has been designed and fabricated to measure the friction coefficient for a few forms of surface asperity. according to the results of the experiments, dry friction coefficient is affected by both magnitude and...
متن کاملSurface roughness and dry friction.
Persson's multiscale contact mechanics theory combined with a multiscale Brillouin-Prandtl-Tomlinson model is used to show that on the basis of these models "dry friction" [i.e., kinetic friction that remains at exceedingly small velocities (but still above the creep range) close to its value at higher velocities] should almost always occur for self-affine surfaces when the dominant interaction...
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ژورنال
عنوان ژورنال: Journal of the Japan Society for Technology of Plasticity
سال: 2010
ISSN: 0038-1586,1882-0166
DOI: 10.9773/sosei.51.342