Micro Electrochemical Machining Characteristics and Shape Memory Effect in Ni-Ti SMA

Ni-Ti SMA의 미세 전해가공특성과 형상기억효과

  • 김동환 (울산대학교 기계자동차공학부 대학원) ;
  • 박규열 (울산대학교 기계자동차공학부)
  • Published : 2003.01.01

Abstract

In this study, micro electrochemical machining method was introduced for accomplishment the fabrication technology of functional parts and smart structures using the Ni-Ti shape memory alloy. From the experimental result, the micro part which has very fine surface could be achieved by use of micro electrochemical process with point electrode method. Concretely, the optimal performance of micro electrochemical process in Ni-Ti SMA was obtained at the condition of approximately 100% of current efficiency and high frequency pulse current. That is, much finer surface integrity and shape memory effect can be obtained at the same condition mentioned above.

Keywords

References

  1. 佐藤敏一, '電解加工と化學加工,' 朝倉書店, pp. 93-101
  2. K. Chikamori, 'Possibilities of electrochemical micromachining,' Int. J. of Jpn. Soc. Prec. Eng., Vol. 32, No. 1, pp. 37-42, 1998
  3. R. Schuster, 'Nanoscale electrochemistry-a tool for forming structures of almost atomic dimensions,' Phys. Rev. Lett., Vol. 80, pp. 5599-5602, 1998 https://doi.org/10.1103/PhysRevLett.80.5599
  4. R. Schuster, V.Kirchner, P. Allongue, G. Ertl, 'Electrochemical micromachining,' Science, Vol. 289, pp. 98-101, 2000 https://doi.org/10.1126/science.289.5476.98
  5. 인치현, 김규만, 주종남, '전기화학적 에칭을 이용한 텅스템 미세탐침 가공,' 한국정밀공학회지, Vol. 18, No. 2, pp. 111-118, 2001
  6. 임영모 임형준 김수현, '전해 프로세스를 이용한 미세축 제작,' 한국정밀공학회지, Vol. 18, No. 3, pp. 169-174, 2001
  7. 石川昇治, 木梨貞男, 三輪學, '形狀記憶合金應用アイデア集,' 日本工業調査會, 1987
  8. 박용수, '금속부식' 대우학술총서, 民音社, pp. 137-148
  9. 곽주현, '극미세전극의 확산전류 이론,' 화학세계, Vol. 33, No. 4, pp. 252-260, 1993
  10. 近森邦夫, '電解加工におゐパルス電流の利用,' 日本機械技術硏究所報告, No. 137, pp. 52-59, 1986
  11. 佐藤敏一, '特殊加工,' 養賢堂, pp. 208-210