Contact friction in the deformation zone during ultrasonic surface plastic deformation

Gavrilova, Tatiana

doi:10.3103/s1068798x08080078

Cited by 6 publications

(2 citation statements)

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“…USR can refine the grain, eliminate microscopic defects, improve the surface finish and microhardness and produce the residual compressive stress; thereby, it can improve the anti-fatigue performance of the parts [9][10][11]. The surface plastic deformation is more sufficient when the part surface is peened from two directions simultaneously, so two-dimensional ultrasonic surface rolling (TDUSR) is developed [12,13].…”

Section: Introductionmentioning

confidence: 99%

“…Li et al [15] carried out an experimental study of ultrasonic rolling Ti-6Al-4V under different frequency and static pressure and analysed the effect of different parameters on surface properties, and they concluded that the static pressure is the most effective factor on surface properties. In a study of Gavrilova et al [12], the influence of ultrasonic impact on friction coefficient was analysed, and the results showed that two-dimensional ultrasonic machining reduces the friction coefficient by 20-60 times compared to conventional machining, while one-dimensional ultrasonic machining only reduces it by two times. Zheng et al [13] processed 6061-T6 Al alloy by ultrasonic deep rolling with longitudinal-torsional vibration, and the results showed that a smoother surface and greater hardness can be obtained compared to one-dimensional ultrasonic rolling.…”

Section: Introductionmentioning

confidence: 99%

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Overall evaluation of the surface integrity in two-dimensional ultrasonic surface rolling 7050 Al alloy

Zheng

Zhu

Liu

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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To improve the anti-fatigue performance and the service life of parts made of 7050 aluminium alloy, the surface integrity of the workpiece treated by two-dimensional ultrasonic surface rolling (TDUSR) was comprehensively evaluated, and the optimization methods of the process parameters were proposed in this paper. The orthogonal experimental method was used to design an experiment program for TDUSR 7050 aluminium alloy. Based on the experimental results, the entropy weight method was used to make objectively weight for each quantifiable evaluation index. The technique for order preference by similarity to an ideal solution (TOPSIS) improved by the grey relational analysis (GRA) was presented to evaluate the surface integrity. Quadratic regression analysis was applied to establish prediction models for the surface roughness, microhardness, residual stress and the close degree. The optimal process parameters for the surface integrity were obtained using planning solution based on the prediction models. The results show that the static load and the feed rate have significant effects on the surface integrity, and their contributions are 60.52% and 28.05%, respectively. The maximal close degree obtained by planning solution is bigger than that obtained by TOPSIS improved by GRA. The validation test result proves that the overall evaluation method of TOPSIS improved by GRA combined with prediction modelling method by quadratic regression analysis can provide comparatively better process parameters and obtain more desirable process responses.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Overall evaluation of the surface integrity in two-dimensional ultrasonic surface rolling 7050 Al alloy

Zheng

Zhu

Liu

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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Recent Progress in Ultrasonic Surface Rolling: A Comprehensive Overview

Yang,

Huang,

et al. 2024

Adv Eng Mater

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Metals and their alloys have found extensive applications in numerous fields. Various surface modification techniques have received significant attention for their potential to improve the adaptability of materials to complex environments. One such technique, the ultrasonic surface rolling process (USRP), introduces a deformation layer by applying static stress and dynamic impacts to the surface of metallic materials. During USRP treatment, remarkable beneficial compressive residual stresses (CRS) and hardened layers are induced and, simultaneously, the surface finish of the material is improved. These modifications not only effectively suppress the initiation and propagation of fatigue cracks but also significantly enhance the mechanical properties, wear, and corrosion resistance of the materials, thereby greatly prolonging the service life of structural components. The review starts with the mechanisms of USRP, discussing grain refinement, control of surface roughness, and the introduction of beneficial CRS. Subsequent sections provide a comprehensive analysis of how these modifications impact material properties, encompassing hardness, plasticity, fatigue, wear, and corrosion resistance. Furthermore, it introduces the latest advancements in USRP technology, including thermal/electric pulse‐assisted USRP, its integration with other surface treatment methods, and its applications and prospects across various fields.

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Effect of two-dimensional ultrasonic rolling on grain size and micro-hardness of 7075 aluminum alloy

Zheng

Liu

Ren

et al. 2019

Int J Adv Manuf Technol

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Contact friction in the deformation zone during ultrasonic surface plastic deformation

Cited by 6 publications

References 0 publications

Overall evaluation of the surface integrity in two-dimensional ultrasonic surface rolling 7050 Al alloy

Overall evaluation of the surface integrity in two-dimensional ultrasonic surface rolling 7050 Al alloy

Recent Progress in Ultrasonic Surface Rolling: A Comprehensive Overview

Effect of two-dimensional ultrasonic rolling on grain size and micro-hardness of 7075 aluminum alloy

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