STUDY ON THE EFFECT OF ULTRASONIC ASSISTED ELECTRICAL DISCHARGE MACHINING PROCESSON RESIDUAL STRESS AND HARDNESS OF TI-6AL-4V ALLOY

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SHABGARD MOHAMMAD REZA; KHOSROZADEH BEHNAM

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Journal: Modares Mechanical Engineering Year:2016 | Volume:16 | Issue:8 Page(s): 0-0

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Title

STUDY ON THE EFFECT OF ULTRASONIC ASSISTED ELECTRICAL DISCHARGE MACHINING PROCESSON RESIDUAL STRESS AND HARDNESS OF TI-6AL-4V ALLOY

Author(s)

SHABGARD MOHAMMAD REZA | KHOSROZADEH BEHNAM | Issue Writer Certificate

Keywords

EDMQ1

ULTRASONIC VIBRATIONSURQ1

FACE INTEGRITYQ2

TITANIUMQ2

RESIDUAL STRESSQ2

Abstract

Electrical discharge machining is one of the most common and widely used machining processes formachining hard metals and alloys which has low machinability by traditional machining methods. Dueto the thermoelectric nature of this process, changes in metallurgical and mechanical properties ofmachined surface and development of RESIDUAL STRESSes in components are inevitable. In this researchmachining of Ti-6Al-4V TITANIUM alloy is conducted by ultrasonic assisted electrical dischargemachining process and the effects of ultrasonic vibration of tool on the machining efficiency, surfaceintegrity- such as surface micro-cracks, RESIDUAL STRESS and surface hardness have been evaluated.Machined surface was imaged by scanning electron microscopy imaging to study the size anddistribution of surface micro-cracks. RESIDUAL STRESSes along the depth of the machined surface, evaluated using Nano indentation technique and hardness of discharged surface are measured using amicro hardness measuring instrument. The results show that applying ultrasonic vibration increaseselectrical discharge machining process efficiency (about 90%), reduces the amount and size of surfacemicro-cracks, changes RESIDUAL STRESS distribution and decreases the amount of it (average 17%).Increase of surface hardness caused by ultrasonic assisted electrical discharge machining process is 13%more than the traditional electrical discharge machining process.

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APA: Copy

SHABGARD, MOHAMMAD REZA, & KHOSROZADEH, BEHNAM. (2016). STUDY ON THE EFFECT OF ULTRASONIC ASSISTED ELECTRICAL DISCHARGE MACHINING PROCESSON RESIDUAL STRESS AND HARDNESS OF TI-6AL-4V ALLOY. MODARES MECHANICAL ENGINEERING, 16(8), 0-0. SID. https://sid.ir/paper/356659/en

Vancouver: Copy

SHABGARD MOHAMMAD REZA, KHOSROZADEH BEHNAM. STUDY ON THE EFFECT OF ULTRASONIC ASSISTED ELECTRICAL DISCHARGE MACHINING PROCESSON RESIDUAL STRESS AND HARDNESS OF TI-6AL-4V ALLOY. MODARES MECHANICAL ENGINEERING[Internet]. 2016;16(8):0-0. Available from: https://sid.ir/paper/356659/en

IEEE: Copy

MOHAMMAD REZA SHABGARD, and BEHNAM KHOSROZADEH, “STUDY ON THE EFFECT OF ULTRASONIC ASSISTED ELECTRICAL DISCHARGE MACHINING PROCESSON RESIDUAL STRESS AND HARDNESS OF TI-6AL-4V ALLOY,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 8, pp. 0–0, 2016, [Online]. Available: https://sid.ir/paper/356659/en

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