Mask Modeling of a 3D Non-planar Parent Material for Micro-abrasive Jet Machining

미세입자 분사가공을 위한 3 차원 임의형상 모재용 마스크 모델링

  • Kim, Ho-Chan (Department of Mechanical and Automotive Engineering, Andong Natl. Univ.) ;
  • Lee, In-Hwan (School of Mechanical Engineering, Chungbuk Natl. Univ.) ;
  • Ko, Tae-Jo (School of Mechanical Engineering, Youngnam Univ.)
  • Received : 2010.04.26
  • Accepted : 2010.06.01
  • Published : 2010.08.01

Abstract

Micro-abrasive Jet Machining is one of the new technology which enables micro-scale machining on the surface of high brittle materials. In this technology it is very important to fabricate a mask that prevents excessive abrasives not to machine un-intend surface. Our previous work introduced the micro-stereolithography technology for the mask fabrication. And is good to not only planar material but also for non-planar materials. But the technology requires a 3 dimensional mask CAD model which is perfectly matched with the surface topology of parent material as an input. Therefore there is strong need to develop an automated modeling technology which produce adequate 3D mask CAD model in fast and simple way. This paper introduces a fast and simple mask modeling algorithm which represents geometry of models in voxel. Input of the modeling system is 2D pattern image, 3D CAD model of parent material and machining parameters for Micro-abrasive Jet Machining. And the output is CAD model of 3D mask which reflects machining parameters and geometry of the parent material. Finally the suggested algorithm is implemented as software and verified by some test cases.

Keywords

References

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