Volume 21, Issue 2 (February 2021)
Modares Mechanical Engineering 2021, 21(2): 109-116 |
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Lak M, sadough vanini S A, Ghasemi A. Influence of the process parameters on induced residual stress by ultrasonic needle peening on Al6061alloy. Modares Mechanical Engineering 2021; 21 (2) :109-116
URL: http://mme.modares.ac.ir/article-15-45918-en.html
URL: http://mme.modares.ac.ir/article-15-45918-en.html
1- Mechanical engineering departmentAmirkabir university of technologyTehran Iran
2- Mechanical enginering departmentAmirkabir university of technology Tehran Iran
2- Mechanical enginering departmentAmirkabir university of technology Tehran Iran
Abstract: (1153 Views)
Abstract
Ultrasonic needle penning is a modern technique that enhances the surface properties of metallic components by imposing static and dynamic loadings. The efficiency of this technique dramatically is dependent on the process parameters. In this study an experimental and numerical investigation on ultrasonic needle penning was carried out. The numerically predicted residual stress profile was verified using X-ray diffraction measurement of residual stress. A 3D finite element model of ultrasonic needle penning was simulated by ABAQUS software. Moreover, a parametric study was performed to investigate the effects of needle diameter, amplitude, device moving speed and static force on residual stress distribution. In order to design of experiments and determine the optimized process parameters of ultrasonic needle penning, Taguchi’s method was implemented. Based on the results, needle diameter had the lowest impact on maximum compressive residual stress and residual stress increases by increasing amplitude and reducing device moving speed. The maximum residual stress was achieved for the needle diameter of 4mm, the amplitude of 16µm, the device moving speed of 1.5cm/s and the static force of 10N. For the optimum case, compressive residual stress was improved 24%.
Article Type: Original Research |
Subject:
Analysis & Selection of Materials
Received: 2020/09/11 | Accepted: 2020/12/26 | Published: 2021/01/29
Received: 2020/09/11 | Accepted: 2020/12/26 | Published: 2021/01/29
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