INVESTIGATION EXPERIMENTAL AND NUMERICAL SIMULATION OF RESIDUAL STRESSES DISTRIBUTION OF ROLLING MILL ROLLS IN ULTRASONIC PEENING TECHNOLOGY

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ABBASI ALIREZA; AMINI SAEID; SHIKHZADE GHANBARALI

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Journal: Modares Mechanical Engineering Year:2017 | Volume:17 | Issue:7 Page(s): 316-324

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Title

INVESTIGATION EXPERIMENTAL AND NUMERICAL SIMULATION OF RESIDUAL STRESSES DISTRIBUTION OF ROLLING MILL ROLLS IN ULTRASONIC PEENING TECHNOLOGY

Author(s)

ABBASI ALIREZA | AMINI SAEID | SHIKHZADE GHANBARALI | Issue Writer Certificate

Keywords

ULTRASONIC PEENING TECHNOLOGY (UPT)Q1

ABAQUSQ1

X-RAY DIFFRACTIONQ2

RESIDUAL STRESSESQ2

GRAIN SIZEQ1

Abstract

In this study, a non-distractive method of X-RAY DIFFRACTION (XRD) was used to determine residual stress of rolling mill rolls made of graphite steel (GSH48). This method utilizes the variations of distance between crystal planes as strain. The determination of residual stress was performed on samples in different depths before and after conducting ultrasonic peening technology. In UPT process, impacts were exerted on the work piece by ball tool, resulting in the improvement of some mechanical properties such as residual stress by creating work hardening and compression. After the simulation and manufacturing of ultrasonic vibratory tool and then the installation of that on lathe machine, UPT operations were conducted on the prepared samples. Measuring residual stress from surface to 0.5 mm depth was performed before and after the UPT process. After the numerical simulation of the UPT, the distribution of experimental residual stress and numerical simulation was compared, the results suggested the increase of compressive residual stress about 0.4 mm from the surface after the UPT process. The rise of compressive residual stress in the rolling mill rolls leads to the increase of their strength and fatigue life and, as a result, their working efficiency is boosted. After the UPT process, the GRAIN SIZE of the surface was calculated from the model of the X-RAY DIFFRACTION using Wiliamson-Hall relation in which GRAIN SIZE was obtained 60.2 nm. The refinement of surface structure arises because of displacement arrangement, again due to vibration with high frequency and severe plastic deformation after the UPT process.

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APA: Copy

ABBASI, ALIREZA, AMINI, SAEID, & SHIKHZADE, GHANBARALI. (2017). INVESTIGATION EXPERIMENTAL AND NUMERICAL SIMULATION OF RESIDUAL STRESSES DISTRIBUTION OF ROLLING MILL ROLLS IN ULTRASONIC PEENING TECHNOLOGY. MODARES MECHANICAL ENGINEERING, 17(7 ), 316-324. SID. https://sid.ir/paper/179340/en

Vancouver: Copy

ABBASI ALIREZA, AMINI SAEID, SHIKHZADE GHANBARALI. INVESTIGATION EXPERIMENTAL AND NUMERICAL SIMULATION OF RESIDUAL STRESSES DISTRIBUTION OF ROLLING MILL ROLLS IN ULTRASONIC PEENING TECHNOLOGY. MODARES MECHANICAL ENGINEERING[Internet]. 2017;17(7 ):316-324. Available from: https://sid.ir/paper/179340/en

IEEE: Copy

ALIREZA ABBASI, SAEID AMINI, and GHANBARALI SHIKHZADE, “INVESTIGATION EXPERIMENTAL AND NUMERICAL SIMULATION OF RESIDUAL STRESSES DISTRIBUTION OF ROLLING MILL ROLLS IN ULTRASONIC PEENING TECHNOLOGY,” MODARES MECHANICAL ENGINEERING, vol. 17, no. 7 , pp. 316–324, 2017, [Online]. Available: https://sid.ir/paper/179340/en

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