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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.
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.