Employment of ultrasonic assisted turning in the fabrication of microtextures to improve the surface adhesion of the titanium implant

Zamani, Mehdi; Farahnakian, Masoud; Elhami, S.

doi:10.1177/09544054211011029

Cited by 19 publications

(4 citation statements)

References 25 publications

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“…Modal displacement amplitudes under given excitations can be computed by solving the equation (5). Then, the dynamic response of the plate (u) can be achieved from equation (2).…”

Section: Theory Reviewmentioning

confidence: 99%

“…Different traditional and modern techniques are nominated to enhance surface quality of the workpiece according to cost, time, workpiece material, and surface complexities demands. In recent decades, the vibration of a tool or workpiece is known as an efficient assistant technique in conventional [1][2][3][4][5][6][7][8][9][10][11][12][13] and non-conventional [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] machining processes. Vibratory and ultrasonic machining are two main non-conventional polishing processes, which are based on vibration phenomenon.…”

Section: Introductionmentioning

confidence: 99%

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Surface roughness study of polyamide in nano-metric polishing using low-frequency acoustic energy

Beigmoradi

Vahdati

2021

Proceedings of the Institution of Mechanical Engineers, Part B:

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Polymers have gained the attention of manufacturers due to their significant advantages such as low density, high corrosion resistance, and high humidity resistance. Producing high-precision polymeric components is one the most challenging issues especially in fabricating complex or micro-scale systems. Some of the machining techniques such as electro discharge machining (EDM) and electrochemical machining (ECM) cannot be employed for machining the non-conductive parts. Using abrasive particles is one of the best options for machining these types of materials. In this work, the capability of the acoustic energy for machining polyamide (PA) workpieces is studied. To this end, an experimental setup is installed and design of experiment (DoE) algorithm is employed to survey the effect of process parameters on surface roughness. Three parameters at three levels are considered as the effective factors of the process and the sensitivity of the surface roughness on the process factors is investigated. In the next step, a hybrid finite element/boundary element approach was used to discuss the relation of process parameters to the vibrational characteristics of the container, then the mechanism of the process was investigated employing the discrete element method. Finally, the surface topology of the optimal workpiece before and after the process was presented and compared. It was observed that acoustic energy can be considered as a vibration source of the container’s floor to provide kinetic energy for machining PA parts on the nano-metric scale. Moreover, it was found that the initial roughness of the workpiece and the chosen parameters play a crucial role in the machining process. Experimental results show that in this technique by selecting appropriate process factors the surface roughness can be reduced up to 50%.

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“…Modal displacement amplitudes under given excitations can be computed by solving the equation (5). Then, the dynamic response of the plate (u) can be achieved from equation (2).…”

Section: Theory Reviewmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Surface roughness study of polyamide in nano-metric polishing using low-frequency acoustic energy

Beigmoradi

Vahdati

2021

Proceedings of the Institution of Mechanical Engineers, Part B:

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“…In those methods, texturing deteriorates the strength of the tools; coating causes the peeling off exposed to higher temperatures. Hence, the solution to the problem is to promote the selflubrication cutting tools to improve the machinability conditions [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Multi-criteria optimization of Al₂O₃-ZrO₂(Y₂O₃)-based self-lubricating composite cutting tools for increasing shear angle, and wear resistance in machining processes

Pradeep Kumar,

Rao,

et al. 2024

Eng. Res. Express

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In the present investigation, self-lubricating cutting tools were fabricated by adding various elements such as NiCr, Ag, Mo, SrSO4, and CaF2 to Zirconia Toughened Alumina in order to overcome the difficulties that occurred in dry machining. Three significant process parameters; cutting speed (50, 125, 200, and 275 m/min), feed rate (0.1 and 0.2 mm/rev), and depth of cut (0.1 and 0.2 mm) were selected for the machining process. The performance measures such as chip thickness ratio, shear angle, and tool wear, were investigated. The experimental runs were conducted with Taguchi L8 mixed-level orthogonal array. Technique for Order of Preference by Similarity to Ideal Solution is a multi-criteria decision-making method used to determine the best alternative from a set of options. Turning experiments have been performed on the AISI 4340 steel workpiece with various combinations of machining parameters. The findings revealed the incorporation of SrSO4 and Mo at 10Wt.% and CaF2 at 5Wt.% (i.e., self-lubricating cutting tool-4) achieved better mechanical properties and wear resistance due to the formation of a self-lubrication layer on the rake face of the cutting tool. A confirmation experiment is executed in order to verify the outcomes in the end. Finally, there is a noticeable improvement in the outcomes compared to the base cutting tool, i.e., chip thickness ratio is 35.77%, shear angle is 27.31%, and tool wear is 58%. The mechanism for improving performance measures is discussed in detail.

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“…Soleimanimehr’s 22 study showed that workpiece diametrical error in conventional turning is about twice in vibration turning. Zamani et al 23 research includes the employment of ultrasonic assisted turning (UAT) to create special micro textures on the titanium implant. This result demonstrated the abilities of UAT to fabricate titanium implants with enhanced adhesion properties for osteoblast cells.…”

Section: Introductionmentioning

confidence: 99%

Correlation between residual stress and geometric tolerances in ultrasonic assisted turning

Bayat

Amini

2022

Proceedings of the Institution of Mechanical Engineers, Part B:

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High accuracy in production parts and manufacturing quality are the requirements of production. Residual stress affects the surface quality and dimensional accuracy of manufactured parts. Production of parts with geometric tolerance, optimal residual stress, and suitable surface quality is always required by manufacturing industries. When machining parts, tensile residual stresses are created in them, which is one of the main reasons for the loss of geometric tolerances and distortion in the workpiece. This study investigated the effect of the ultrasonic-assisted vibration compared with conventional machining in various conditions of a 2024 aluminum workpiece on the surface quality, runout, straightness, and tensile residual stresses. In this article, the effects of geometric tolerance parameters, tensile residual stress, and surface roughness have been investigated simultaneously. A total of 18 experiments in different cutting speeds and feed rates in two machining states of conventional and ultrasonic vibration states were performed. The results showed that ultrasonic vibrations could be used to achieve 31% lower run out and 36% lower straightness in the parts. Also, the values of tensile residual stress in the ultrasonic vibration machining were 11% lower compared to conventional machining. Ultrasonic vibrations can also be used in most cases to achieve better surface quality, tolerance, and tensile residual stress according to machining parameters compared to conventional machining. The experimental results show that ultrasonic-assisted turning is a reliable method for machining, which can obtain lower tensile residual stress and improve the machined surface integrity and better tolerances.

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Employment of ultrasonic assisted turning in the fabrication of microtextures to improve the surface adhesion of the titanium implant

Cited by 19 publications

References 25 publications

Surface roughness study of polyamide in nano-metric polishing using low-frequency acoustic energy

Surface roughness study of polyamide in nano-metric polishing using low-frequency acoustic energy

Multi-criteria optimization of Al₂O₃-ZrO₂(Y₂O₃)-based self-lubricating composite cutting tools for increasing shear angle, and wear resistance in machining processes

Correlation between residual stress and geometric tolerances in ultrasonic assisted turning

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Employment of ultrasonic assisted turning in the fabrication of microtextures to improve the surface adhesion of the titanium implant

Cited by 19 publications

References 25 publications

Surface roughness study of polyamide in nano-metric polishing using low-frequency acoustic energy

Surface roughness study of polyamide in nano-metric polishing using low-frequency acoustic energy

Multi-criteria optimization of Al2O3-ZrO2(Y2O3)-based self-lubricating composite cutting tools for increasing shear angle, and wear resistance in machining processes

Correlation between residual stress and geometric tolerances in ultrasonic assisted turning

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Product

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Multi-criteria optimization of Al₂O₃-ZrO₂(Y₂O₃)-based self-lubricating composite cutting tools for increasing shear angle, and wear resistance in machining processes