Plastic flow behavior for machined surface material Ti-6Al-4V with rotary ultrasonic burnishing
Jian Zhao,Zhanqiang Liu +1 more
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TLDR
In this article, the kinematic mechanism for plastic flow during surface generation in hybrid rotary ultrasonic burnishing Ti-6Al-4V with cylindrical roller tool was revealed.Abstract:
A hybrid machining technology with rotary ultrasonic roller burnishing process has been developed. There is no material removal when the machined surface is generated by the hybrid ultrasonic burnishing as comparing with other conventional cutting processes. The kinematic mechanism for plastic flow during surface generation in hybrid rotary ultrasonic burnishing Ti-6Al-4V with cylindrical roller tool was revealed in this paper. Firstly, the machining experiments were carried out for surface generation with hybrid rotary ultrasonic burnishing Ti-6Al-4V. Then, the experimental analysis was conducted and it showed that, there was little change in dimension of the rotary ultrasonic roller burnished workpiece compared to that of milled workpiece. Finally, a 3D finite element (FE) model was proposed to simulate the surface generation in hybrid rotary ultrasonic roller burnishing process. Three machining zones including pile-up deformation area, tensile deformation area, and compressive deformation area were selected for the analysis of the material plastic flow. It was found that the surface generated by rotary ultrasonic burnishing was mainly attributed to the plastic flow of material in these three deformation zones. The FE simulation results showed good agreements with the experimental ones. The proposed research results are helpful for the analysis and diagnosis of the surface generation in ultrasonic burnishing process.read more
Citations
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Surface characteristics and corrosion behavior of TC11 titanium alloy strengthened by ultrasonic roller burnishing at room and medium temperature
TL;DR: In this paper, a set of self-fabricated ultrasonic burnishing equipment was used to strengthen the surface of TC11 titanium alloy material by using a roller tip with or without heat treatment.
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Research on the promotion mechanism of surface burnishing process by two-dimensional ultrasonic vibration
TL;DR: Tangential ultrasonic vibration and vertical ultrasonic vibrations are applied in the surface burnishing process (SBP) to study the improvement mechanism of both on the machining performance.
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Effect of Ball Burnishing on Surface Roughness and Wear of AISI 316L SS
TL;DR: In this article, a mathematical model based on Box-Behnken model and expressing Ra as a function of applied charge, feed rate, and ball diameter was used to minimize the surface roughness parameter.
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Effect of surface burnishing process with different strain paths on the copper microstructure
TL;DR: In this article, the effect of the two strain paths on the plastic strain in the material is explored by developing a numerical simulation model, which shows that the RSP machining, with the assistance of the Bauschinger effect, further increases the strain degree and the machining influence depth in the sample compared with the single strain path.
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Simulation of the burnishing process on real surface structures
TL;DR: In this article, an approach based on reverse engineering was developed for the preparation of the FEM process model, using 3D scanning, models of the workpiece and the tool were created and imported in the process model.
References
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Wear resistance enhancement of titanium alloy (Ti–6Al–4V) by ball burnishing process
TL;DR: In this article, Taguchi optimization results revealed that burnishing force and number of pass were the significant parameters for minimizing the specific wear rate, whereas the burnishing feed and speed play important roles in minimizing the coefficient of friction.
Journal ArticleDOI
Experimental studies on drilling tool load and machining quality of C/SiC composites in rotary ultrasonic machining
TL;DR: In this paper, rotary ultrasonic machining (RUM) and conventional drilling (CD) tests with a diamond core drill were conducted to investigate the effects of ultrasonic vibration on mechanical load and machining quality.
Journal ArticleDOI
Finite element modeling of ultrasonic surface rolling process
Yu Liu,Lijun Wang,Dongpo Wang +2 more
TL;DR: In this article, a three-dimensional finite element model (FEM) was developed to predict the treatment conditions that lead to surface nanocrystallization, and simulated results of surface deformation, stress and strain were investigated to assess the formation of nanostructured layer.
Journal ArticleDOI
Deep cold rolling with ultrasonic vibrations—a new mechanical surface enhancement technique
TL;DR: In this paper, a newly developed mechanical surface enhancement technique utilising ultrasonic vibrations, namely Ultrasonic Deep Cold Rolling (UDCR) process, is presented, which differs from conventional deep cold rolling (CDCR) by applying static and also dynamic forces resulting from ultrasonic vibration.
Journal ArticleDOI
The effect of ball burnishing on heat-treated steel and Inconel 718 milled surfaces.
TL;DR: In this paper, the use of the ball burnishing process to improve the final quality of Inconel 718 surfaces is studied and the results of different tested pieces are discussed in relation to the maximum and mean surface roughness achieved microstructure and surface hardness.