Surface Texture Transformation in Micro-Cutting of AA6061-T6 with the Rehbinder Effect

Zhang, Jiayi; Lee, Yan Jin; Wang, Hao

doi:10.1007/s40684-020-00260-0

Cited by 6 publications

(3 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Interestingly, it can be found that physiochemical effect is more obvious under 25 mm/min cutting speed, that is, the difference of machining forces (cutting and thrust forces) between Sample M and N is more evident. Previous study reported that the R effect is more pronounced at lower cutting depth (1 μm) [17].…”

Section: The Tested Forces Of the Samplesmentioning

confidence: 80%

Physiochemical effect on the microgroove microstructure in microcutting of pure copper

Zhang

2021

Preprint

Self Cite

View full text Add to dashboard Cite

Physiochemical effect on the machining of pure copper is studied via microstructure characterization on the cross-sectioned microgroove. An obvious decreased cutting force and thrust force were obtained with the application of surfactant. The surface roughness of microgroove with physiochemical effect is 12 nm, and that without physiochemical effect is 17 nm. The average grain size of the medium-affected sample is 67.9 µm within the microgroove zone, and that of the medium-free sample is 48.3 µm within the microgroove zone, moreover, the grain size of medium-free microgroove near the microgroove surface is larger than that far away from the microgroove surface. Additionally, the grain orientations of medium-affected cross-sectioned surface present anisotropy, while that of medium-free cross-sectioned surface are towards {101} direction. Based on the calculation and analysis of geometrically necessary dislocation, it can be inferred that the induced stress and temperature in the sample with physiochemical effect are higher than that without physiochemical effect, which can provide enough driving energy for recrystallization.

show abstract

Section: The Tested Forces Of the Samplesmentioning

confidence: 80%

Physiochemical effect on the microgroove microstructure in microcutting of pure copper

Zhang

2021

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…The physicochemical mechanisms in ultra-precision machining are further discussed in [16]. The mechanochemical effect on the micro-cutting of AA6061 alloy is studied through characterization on the microgroove surface in [17].…”

Section: Introductionmentioning

confidence: 99%

Bearing Inner Ring Raceway Low-Temperature Aerosol Cooling Lubrication Grinding

Chang

2023

Processes

View full text Add to dashboard Cite

A low-temperature aerosol cooling and lubrication grinding test bench was built to evaluate the cooling and lubrication performance of the low-temperature aerosol. The mechanism of grinding residual stresses in the inner ring raceway under the coupling effect of grinding force and grinding heat was studied, and the effects of the grinding process parameters and cooling and lubrication conditions on the distribution state of the grinding residual stresses in the surface layer of the inner ring raceway were revealed. The results showed that reducing the initial temperature of the grinding fluid could reduce the residual tensile stresses on the raceway surface. The results also showed that the low-temperature aerosol cooling lubrication method is conducive to the generation of the axial residual compressive stress of −500 MPa and tangential residual compressive stress of −300 MPa in the inner ring raceway surface layer of the bearing. Compared with the convective heat transfer coefficient, the effect of the initial temperature of the grinding fluid is smaller.

show abstract

“…Mechanochemical effects have been well established to cause significant impacts on the machining process both on the meso- [1,2], and microscopic length scales [3,4]. This unique phenomenon involves the application of a surface-active medium (SAM) on metal surfaces to drastically degrade its mechanical stability in the form of reducing strengths [5] or causing embrittlement [6].…”

Section: Introductionmentioning

confidence: 99%