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Digitization of Unknown Sculptured Surface Using a Scanning Probe  

권기복 (영남대학교 대학원 기계공학과)
김재현 (영남대학교 대학원 기계공학과)
이정근 (영남대학교 대학원 기계공학과)
박정환 (영남대학교 기계공학부)
고태조 (영남대학교 기계공학부)
Publication Information
Journal of the Korean Society for Precision Engineering / v.21, no.4, 2004 , pp. 57-63 More about this Journal
Abstract
This paper describes a method for digitizing the compound surfaces which are comprised of several unknown feature shapes such as base surface, and draft wall. From the reverse engineering's point of view, the main step is to digitize or gather three-dimensional points on an object rapidly and precisely. As well known, the non-contact digitizing apparatus using a laser or structured light can rapidly obtain a great bulk of digitized points, while the touch or scanning probe gives higher accuracy by directly contacting its stylus onto the part surface. By combining those two methods, unknown features can be digitized efficiently. The paper proposes a digitizing methodology using the approximated surface model obtained from laser-scanned data, followed by the use of a scanning probe. Each surface boundary curve and the confining area is investigated to select the most suitable digitizing path topology, which is similar to generating NC tool-paths. The methodology was tested with a simple physical model whose shape is comprised of a base surface, draft walls and cavity volumes.
Keywords
Reverse Engineering; Digitization; Laser-scanned Data; Probe Path; Scanning Probe;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
연도 인용수 순위
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