INVESTIGATION ON PERFORMANCE OF ULTRA-FINE GRAINED PURE COPPER AS ELECTRODE DURING ELECTRICAL DISCHARGE MACHINING

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RANAEI MOHAMMAD AMIN; AFSARI AHMAD; AHMADI BROOGHANI SEYED YOUSEF; MOSHKSAR MOHAMMAD MOHSEN

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Journal: Modares Mechanical Engineering Year:2015 | Volume:14 | Issue:1 Page(s): 97-105

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Title

INVESTIGATION ON PERFORMANCE OF ULTRA-FINE GRAINED PURE COPPER AS ELECTRODE DURING ELECTRICAL DISCHARGE MACHINING

Author(s)

RANAEI MOHAMMAD AMIN | AFSARI AHMAD | AHMADI BROOGHANI SEYED YOUSEF | MOSHKSAR MOHAMMAD MOHSEN | Issue Writer Certificate

Keywords

ELECTRICAL DISCHARGE MACHININGQ1

TOOL ELECTRODE WEARQ2

EQUAL CHANNEL ANGULAR PRESSINGQ2

ULTRA FINE GRAINED COPPERQ2

Abstract

One of the fundamental problems of ELECTRICAL DISCHARGE MACHINING (EDM) process is TOOL ELECTRODE WEAR. In this study, ultra-fine grains (UFG) structure of pure copper was used to improve performance and also increase the electrical wear resistance of tool electrode. EQUAL CHANNEL ANGULAR PRESSING (ECAP) was used to reduce the crystal size of pure copper. Samples were processed through ECAP die up to 8 passes, and then used as electrode in EDM process. The effect of electrodes grain size, discharge current, and machining time on the metal removal of the work piece and electrical wear of the electrodes were investigated. In addition, the microstructure, and electrical conductivity of copper tool electrodes were examined. By applying the ECAP on pure copper a fine, approximately 50-200 nm grain size, microstructure was obtained after 8 passes. The results show that for finer crystalline structure of copper electrodes, electrical wear decreases but material removal rate is somehow constant.

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APA: Copy

RANAEI, MOHAMMAD AMIN, AFSARI, AHMAD, AHMADI BROOGHANI, SEYED YOUSEF, & MOSHKSAR, MOHAMMAD MOHSEN. (2015). INVESTIGATION ON PERFORMANCE OF ULTRA-FINE GRAINED PURE COPPER AS ELECTRODE DURING ELECTRICAL DISCHARGE MACHINING. MODARES MECHANICAL ENGINEERING, 14(1), 97-105. SID. https://sid.ir/paper/179814/en

Vancouver: Copy

RANAEI MOHAMMAD AMIN, AFSARI AHMAD, AHMADI BROOGHANI SEYED YOUSEF, MOSHKSAR MOHAMMAD MOHSEN. INVESTIGATION ON PERFORMANCE OF ULTRA-FINE GRAINED PURE COPPER AS ELECTRODE DURING ELECTRICAL DISCHARGE MACHINING. MODARES MECHANICAL ENGINEERING[Internet]. 2015;14(1):97-105. Available from: https://sid.ir/paper/179814/en

IEEE: Copy

MOHAMMAD AMIN RANAEI, AHMAD AFSARI, SEYED YOUSEF AHMADI BROOGHANI, and MOHAMMAD MOHSEN MOSHKSAR, “INVESTIGATION ON PERFORMANCE OF ULTRA-FINE GRAINED PURE COPPER AS ELECTRODE DURING ELECTRICAL DISCHARGE MACHINING,” MODARES MECHANICAL ENGINEERING, vol. 14, no. 1, pp. 97–105, 2015, [Online]. Available: https://sid.ir/paper/179814/en

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