서지주요정보
초정밀 비구면 가공용 CAM 소프트웨어 개발에 관한 연구 = A study on the development of CAM software for ultra-precision aspheric surface
서명 / 저자 초정밀 비구면 가공용 CAM 소프트웨어 개발에 관한 연구 = A study on the development of CAM software for ultra-precision aspheric surface / 이택민.
저자명 이택민 ; Lee, Taik-Min
발행사항 [대전 : 한국과학기술원, 1997].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8007648

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 97068

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Nowadays, as consumer electronics, information, and aero-space industry grow, the demand for aspheric lens for camcoder, CD player, and optical instrument increases higher. The aspheric lenses have various shapes according to their application and often require several tens nanometer in the form accuracy. Therefore, CAM systems for ultra-precision machining of aspheric surface are needed. In ultra-precision machining, the relative motion of tool and workpiece is precisely copied onto the workpiece. Accordingly, interpolation of aspherical surface must meet the allowable tolerance exactly. In fitting aspheric curve, linear interpolation generates huge amount of NC codes for satisfying the very small tolerance, and makes the cutting time longer because of the acceleration and deceleration of tool in every linear motion. On the other hand, arc interpolation generates a shorter NC code than linear interpolation. Thus arc interpolation can save the cutting time. Besides, it can make the 1st differential value to be continuous at the connection points of each arc. However, the existing arc interpolation needs a large amount of calculations to meet tolerance exactly. For the fast calculation of error between the arc and the aspheric curve, we developed Tri-arc and New Bi-arc interpolation method that the location of maximum error is fixed. In ultra-precision machining, to avoid bad surface roughness due to machining affected layer, a operator must carry out several contour cuttings. So, the cutting condition input module is necessary for user to give the several contour cutting condition conveniently. In this CAM software, tool path verification module can perform dynamic simulation and analytical verification. Dynamic simulation make it possible to verify NC code visually. Analytical verification can check invisible overcut through comparison of tool geometry with aspheric curve. Consequently, this software can generate NC code for various aspheric surfaces fast and precisely by Tri-arc and New Bi-arc curve interpolation method. The cutting condition input module and the NC code verification module are adequate to ultra-precision machining, so that a operator can obtain ultra-precision aspheric products fast and easily.

서지기타정보

서지기타정보
청구기호 {MME 97068
형태사항 ix, 51 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Taik-Min Lee
지도교수의 한글표기 : 양민양
지도교수의 영문표기 : Min-Yang Yang
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 50-51
주제 비구면
CAM 소프트웨어
초정밀
트라이아크 보간
뉴바이아크 보간
Aspheric surface
CAM software
Ultra-precision
Tri-arc interpolation
New Bi-arc interpolation
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