Study on surface residual stress of hardened 12Cr2Ni4A alloy steel by ultrasonic vibration-assisted ELID grinding

Lei, Xiaofei; Xiang, Daohui; Peng, Peicheng; Niu, Xuming; Zhao, Bo; Gao, Guofu

doi:10.1007/s00170-021-07328-4

Cited by 12 publications

(2 citation statements)

References 6 publications

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“…Zhao et al [20] performed ultrasound-assisted internal grinding on M50 bearing steel, and ultrasonic vibration effectively reduced the grinding force and grinding heat and improved the surface quality. Lei et al [21] conducted grinding experiments on quenched and tempered 12Gr2Ni4A alloy steel to explore the relationship between grinding amplitude and grinding depth on residual stress. They found that under ultrasonic vibration, residual compressive stress was generated on the machined surface, whereas conventional grinding resulted in residual tensile stress.…”

Section: Introductionmentioning

confidence: 99%

Mechanism and prediction of residual stress generation in ultrasonic vibration-assisted grinding of bearing steel

Zhang,

Luan,

Zhao

et al. 2024

Preprint

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The surface residual stress of the parts has an important influence on their performance. The generation mechanism of surface residual stress in ultrasonic vibration-assisted grinding (UVAG) of bearing steel was investigated, and the correlation between processing parameters and residual stresses was obtained. Based on the ultrasonic vibration-assisted grinding force and thermal model and the flow stress model considering the initial material microstructure, the mechanical and thermal stresses of the material were calculated. Finally, the theoretical model of residual stress is established based on the yield theory and experimentally verified. High-speed ultrasonic aerostatic spindle for ultrasonic vibration-assisted grinding, change the inlet pressure to realize the ultrasonic amplitude and frequency adjustment, the experimental results show that the cutting direction and the vertical cutting direction of the residual stress test results and the model prediction results of the average relative error of 11.4% and 11.7%, and the rule of change is more consistent. Based on the experimental results, the influence pattern of process parameters on the experimental results was analyzed. The results show that the residual compressive stress on the surface of ultrasonic vibration-assisted grinding is directly proportional to the grinding depth, feed rate, and inlet pressure of pneumatic ultrasonic wave, and inversely proportional to the linear speed of the grinding wheel. This study provides a theoretical basis for the analysis of UVAG residual stress and optimization of UVAG process parameters.

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Section: Introductionmentioning

confidence: 99%

Mechanism and prediction of residual stress generation in ultrasonic vibration-assisted grinding of bearing steel

Zhang,

Luan,

Zhao

et al. 2024

Preprint

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show abstract

“…It is shown that ultrasonic vibration can maintain greater compressive residual stresses on the workpiece surface and prevent the occurrence of tensile residual stresses. Peng et al 20 ; Lei et al 21 carry out a check experiment between UVAG and OG. In UVAG, the undeformed chip thickness and the cutting thickness are reduced.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on ultrasonic vibration assisted grinding of GCr15SiMn bearing steel

Ma,

Xiang,

Lei

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

Self Cite

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Many problems of GCr15SiMn high-carbon chromium bearing steel have been found in the ordinary grinding (OG) process. Aiming at the problems of high grinding force, low residual compressive stress and low surface quality, ultrasonic machining technology is combined with OG. The test of ultrasonic vibration assisted grinding (UVAG) GCr15SiMn high carbon chromium bearing steel is carried out. The residual stress, surface roughness, grinding force, and surface morphology are analyzed by changing machining parameters. The research showed that as the grinding depth and feed speed become larger, the grinding force increased, when the spindle speed rises, the grinding force becomes smaller. In the test range, with the ultrasonic amplitude from small to large, the grinding force from large to small. The ultrasonic grinding force is 27.8% lower than that of OG. The surface roughness increases with increasing grinding depth and feed speed and decreases with increasing spindle speed and ultrasonic amplitude, and at an amplitude of 6 μm, the surface roughness is reduced by 27% compared to OG. When the feed speed and grinding depth are lowered or the ultrasonic amplitude is increased, the surface residual compressive stress is increased. Compared to OG, it is increased by more than 13.5% under the same parameters. At the same time, the phenomenon of burrs and surface tears can be reduced, and the surface quality of the workpiece becomes better.

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Grinding characteristics of ultra-high strength steel by ultrasonic vibration-assisted grinding with microcrystalline alumina wheel

Zhao

Zhao²,

Han³

et al. 2022

Int J Adv Manuf Technol

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Study on surface residual stress of hardened 12Cr2Ni4A alloy steel by ultrasonic vibration-assisted ELID grinding

Cited by 12 publications

References 6 publications

Mechanism and prediction of residual stress generation in ultrasonic vibration-assisted grinding of bearing steel

Mechanism and prediction of residual stress generation in ultrasonic vibration-assisted grinding of bearing steel

Experimental study on ultrasonic vibration assisted grinding of GCr15SiMn bearing steel

Grinding characteristics of ultra-high strength steel by ultrasonic vibration-assisted grinding with microcrystalline alumina wheel

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