Effect of metallurgical parameters on the drilling and tapping characteristics of aluminum cast alloys

Barakat, H.; Zedan, Yasser; Samuel, A. M.; Doty, H. W.; Valtierra, S.; Samuel, F. H.

doi:10.1007/s00170-019-04322-9

Cited by 8 publications

(2 citation statements)

References 16 publications

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“…It is also worth mentioning that the concept of wear is not restricted to material loss, which was not observed with relevance in the results of the wear coefficients shown in Figure 8. In this study, the concept of wear was predominantly directed to the geometric modifications of surfaces 5 . In further analysis, changes in surface mechanical properties could probably be observed due to the asperities self-hardening.…”

Section: Wear Coefficient K and Specimens Analysismentioning

confidence: 99%

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Investigation of the effects of skewness Rsk and kurtosis Rku on tribological behavior in a pin-on-disc test of surfaces machined by conventional milling and turning processes

Dumont

Martins

et al. 2021

Mat. Res.

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Friction and wear are influenced by the surface conditions of the material, since there is deformation, segregation, generation of oxide films, among others. Roughness is an important characteristic in tribological studies, where the parameters of skewness and kurtosis have greater influence than the conventional parameters R a and R q. This study is aimed to investigate the influence of the parameters of skewness R sk and R ku kurtosis on the surface of the USI AR 360 steel machining by the milling and turning processes in the pin-on-disc sliding wear test. Results showed that surfaces with the same R a and R q could be distinguished by the skewness parameter. Different behaviors were observed in the analysis of friction curves, where the skewness effect showed a tendency to reduce the friction coefficient. It was also observed that the feed marks orientation in relation to the sliding direction can influence the tribological behavior of the surfaces.

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Section: Wear Coefficient K and Specimens Analysismentioning

confidence: 99%

“…Wear is defined as the loss of material or the deformation of the surface of one or both bodies in contact 5 . Like friction, wear is not a property of the material, but a response of the tribosystem.…”

Section: Introductionmentioning

confidence: 99%