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Experimental investigation of burr reduction during EDM end-milling hybrid process
김민엽,Chang Ping Li,쿠르니아완렌디,정상태,고태조 대한기계학회 2019 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.33 No.6
Burrs are always generated during the end-milling process of ductile materials and have become a common challenge because a large plastic flow of the material is generated during cutting. In this research, a combination method of the end-milling and electrical discharged machining (EDM) process is proposed to suppress the generated burrs during machining; this process is called the EDM endmilling process. EDM end-milling was performed for side milling of AISI 1045 alloy steel (HRC = 28). The height of the generated burrs was measured and compared between ordinary end milling and EDM end-milling, and the experimental results indicate that the generated burrs are suppressed effectively by EDM end-milling owing to the effect of reduced plastic flow. The experimental results also indicate that the height of the generated burrs decreases when the capacitance values are increased during EDM end-milling. Furthermore, the results show that the height of the generated burrs remains unchanged by EDM end-milling when the axial depth of cut is increased.
김민엽(Min-Yeop Kim),이상평(Chang-Ping Li),김정현(Jung-Hyun Kim),고태조(Tae Jo Ko) 한국기계가공학회 2016 한국기계가공학회지 Vol.15 No.3
Mechanical milling, in association with electrical discharge machining (EDM) for hybrid machining, is presented in this paper. An end mill cutting tool, an electrode of the EDM, was used for the system. That means that some parts were cut by the mechanical cutting process and others by the EDM. The possibility of combining both processes was simulated with the cutting simulation software. In addition, the machining reality was verified by measuring the electrical signal from the EDM power supply, which was measured in time and frequency domains. From this initial research, the hybrid machining system proposed in this paper appears to be well suited for difficult to cut material processing.
방전 밀링 하이브리드 가공을 이용한 탄소강의 표면 특성 연구
김민엽(M.Y. Kim),고태조(T.J. Ko),진보스코(J.B. Byiringiro) 한국생산제조학회 2010 한국공작기계학회 추계학술대회논문집 Vol.2010 No.-
This paper presents the surface characteristics for hybrid machining that combines electro discharge and milling. A number of experiments have been carried out to investigate and compare the effects of the rod and endmill tool on the machined surface. It is has been revealed that the end mill is more efficient in terms of machining time while rod tool gives better surface roughness.
김민엽(Min Yeop Kim),박종권(Jong Kweon Park),고태조(Tae Jo Ko) 한국생산제조학회 2011 한국생산제조시스템학회 학술발표대회 논문집 Vol.2011 No.4
In this paper, a number of experiments were conducted to measure cutting forces during a hybrid machining process of EDM together with milling. Measured cutting force is good evidence whether the cutting tool engages in the EDM process or not. From the experimental results, ED-milling assures that it is possible to cut materials while the electric discharge machining process is active.