In this paper a documentation was made to highlight the characteristics obtained on surface modifications by means of Cold Spray, using different powders based tungsten carbide (WC) and agglomerated with nickel, sprayed materials, as well possibility 52100 steel, which is often used in manufacture rolling bearings has acquired high performances both terms wear fatigue resistance due alloying ch...

Running-in occurs in rolling-sliding contacts under mixed-friction conditions and typically involves asperity smoothing through mild wear plastic deformation. To improve the prediction of service life or friction rolling-element bearings conditions, knowledge surface topography changes during running-in their dependence on operating condition is an important prerequisite. Therefore, this study ...

This paper describes a comparison of tool life between ceramics and cubic boron nitride (CBN) cutting tools when machining hardened steels using the Taguchi method. An orthogonal design, signal-to-noise ratio (S/N) and analysis of variance (ANOVA) were employed to determine the effective cutting parameters on the tool life. The results indicated that the V was found to be a dominant factor on t...

Abrasive wear is a mechanism that results in loss of material from the interaction surface with hard particles. This type frequently found machining tools. Microscale abrasion equipment often used to characterize resistance abrasive surface. The different parameters able control micro-abrasion tests, such as ball rotation, sliding distance between and sample, slurry concentration, normal load a...