http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
전해가공을 이용한 Nitinol 형상기억합금의 그루브 패턴 가공특성에 관한 연구
신태희,김백겸,백승엽,이은상,Shin, Tae-Hee,Kim, Baek-Kyoum,Baek, Seung-Yub,Lee, Eun-Sang 한국생산제조학회 2009 한국생산제조학회지 Vol.25 No.2
A development of smart materials is becoming a prominent issue on present industries. A smart material, included in functions, is needed for micro fabrication. A shape memory alloy(SMA) in a smart material is best known material. Ni-Ti alloy, composed of nikel and titanium is one of the best shape memory alloy(SMA). Nitinol SMA is used for a lot of high tech industry such as aero space, medical device, micro actuator, sensor system. However, Ni-Ti SMA is difficult to process to make a shape and fabrications as traditional machining process. Because nitinol SMA, that is contained nikel content more than titanium content, has similar physical characteristics of titanium. In this paper, the characteristics of ECM grooving process for nitinol SMA are investigated by experiments. The experiments in this study are progressed for power, gap distance and machining time. The characteristics are found each part. Fine shape in work piece can be found on conditions; current 6A, duty factor 50%, gap distance 15%, gap distance $15{\mu}m$, machining time 10min.
전해가공을 이용한 Nitinol 형상기억합금의 그루브 패턴 가공특성에 관한 연구
신태희(Tae-Hee Shin),김백겸(Baek-Kyoum Kim),백승엽(Seung-Yub Baek),이은상(Eun-Sang Lee) 한국생산제조학회 2009 한국생산제조학회지 Vol.18 No.6
A development of smart materials is becoming a prominent issue on present industries. A smart material, included in functions, is needed for micro fabrication. A shape memory alloy(SMA) in a smart material is best known material. Ni-Ti alloy, composed of nikel and titanium is one of the best shape memory alloy(SMA). Nitinol SMA is used for a lot of high tech industry such as aero space, medical device, micro actuator, sensor system. However, Ni-Ti SMA is difficult to process to make a shape and fabrications as traditional machining process. Because nitinol SMA, that is contained nikel content more than titanium content, has similar physical characteristics of titanium. In this paper, the characteristics of ECM grooving process for nitinol SMA are investigated by experiments. The experiments in this study are progressed for power, gap distance and machining time. The characteristics are found each part. Fine shape in work piece can be found on conditions; current 6A, duty factor 50%, gap distance 15㎛, machining time 10min.
다구찌 방법에 의한 IED 초정밀 래핑의 최적 가공에 관한 연구
황성철(Sung-Chul Hwang),김백겸(Baek-Kyoum Kim),원종구(Jong-Koo Won),이은상(Eun-Sang Lee) 한국생산제조학회 2008 한국생산제조학회지 Vol.17 No.4
Application of ceramic has increased due to excellent mechanical properties, and machining of ceramic has demanded gradually a precision surface machining. For decreasing the surface roughness, the control of IED lapping parameters is very important. This paper deal with the analysis of the process parameters such as applied forces, percentage of h-BN and IED lapping time, developed based on Taguchi method. Also, SEM was used for monitoring of a machinable ceramic surface.
Ni-Ti 형상기억합금의 전해가공을 이용한 미세 그루브 가공 특성연구
김백겸,신태희,백승엽,이은상 한국공작기계학회 2008 한국공작기계학회 추계학술대회논문집 Vol.2008 No.-
Electrochemical micro machining, the anodic dissolution process is considered to effective advantaged micro machining method which possess several advantages on electrically conducting and difficult to machine materials. Ni-Ti SMA(Shape Memory Alloy) is composed of approximately 56% Nikel and 44% Titanium by weight. This material is able to function as to transform specific shape from a certain deformation when the alloy is heated. However, Ni-Ti SMA is easily to loss characteristic that shape memory as a traditional machining process by reason of generating heat at contacting area between material and tool. Therefore Ni-Ti SMA is suitable electrochemical machining that needless contact a tool to material. In this paper, characteristics of micro groove process are studied on electrochemical machining to change tool diameter and distance between material and tool electrode.
김백겸,신태희,백승엽,이은상 한국공작기계학회 2008 한국공작기계학회 춘계학술대회논문집 Vol.2008 No.-
Electro-chemical Machining, the anodic dissolution process is able to achieve wanted a sharp shape and high quality surface without contact with workpiece and low heat effect using electrochemical reaction between anode and cathode. In hence this process useful to apply micro structure. A shape memory alloy for micro-structure and micro industrial technique, Nitinol is composed of approximately 55% Nikel and 45% Titanium by weight. This material is able to function as to transform specific shape from a certain deformation when the alloy is heated. Therefore Nitinol is used for several industries such as a medical industry, a aerospace, electrical application on a part of micro structure. In this paper, effect of electrolyte is studied on electrochemical machining for Nitinol shape memory alloy, copper is used for electrode, diameter and depth are measured as a extent of processing using optical microscope.
마이크로 핀을 이용한 니티놀 형상기억 합금의 마이크로 전해가공 특성 분석
신민정,백승엽,김백겸,이은상 한국공작기계학회 2007 한국공작기계학회 추계학술대회논문집 Vol.2007 No.-
Electrochemical micro machining, the anodic dissolution process without contact with tools, can achieve a wanted shape of the surface using electrochemical reaction between anode and cathode. Nitinol is a metal alloy composed of Ni and Ti around 50% respectively which has shape memory effect. Nitinol can be put various applications which require micro scale structure. The aim of this study is to investigate the characteristic of electrochemical micro machining for nitinol workpieces. In order to analyze the characteristics of electrochemical micro machining for nitinol, tungsten carbide micro pin was used for electrode and the machined area was observed by optical microscope.