• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1993년도 춘계학술대회 논문집
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• pp.92-96
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• 1993

Modern NC machine tools require a more and more exact monitoring and control of cutting process. A very important parameter is tool wear used to optimize cutting data and to change tools at the right time. In this study, a real-time multi-tool fracture method is proposed for measuring crater from fringe patterns generated by uni-shadow-moire. An optical technique using laser for non-contact measurement of tool fracture is presented. The technology in which the tool is illuminated by a beam of He-Ne laser and then the image of tool fracture CCD camera.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1993년도 한국자동제어학술회의논문집(국내학술편); Seoul National University, Seoul; 20-22 Oct. 1993
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• pp.392-397
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• 1993

Generally machine tools can be divided into three components : NC Controller, the electrical drives and the mechanical transmission elements. For high speed, high precision machining, high performance control of servo system must be accommodated and one must carefully define the interface among three components. In this paper, we suggest a way to assist future development of CNC controller by investigating the characteristics resulting from different interface between CNC controller and servo system.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2001년도 춘계학술대회 논문집
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• pp.487-491
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• 2001

In this paper, we developed an automated program for the modeling and manufacturing of three-dimensional roller gear cams. A computer program employing the theory of gearing and coordinate transformation is developed for synthesizing and animating cam mechanisms. Then a module for generation NC program for a five-axis CNC machine to manufacture roller gear cam is established.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2000년도 추계학술대회 논문집
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• pp.251-254
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• 2000

In this paper, we developed an automated program for the modeling and manufacturing of three-dimensional roller gear cams. A computer program employing the theory of gearing and coordinate transformation is developed for synthesizing and animating cam mechanisms. A method using wire frame modeling and shading by triangular element is presented, and effectively used for modeling of example with reduced computation time. Then a module for generation NC program for a five-axis CMC machine to manufacture roller gear cam is established.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1992년도 추계학술대회 논문집
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• pp.335-338
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• 1992

To purpose of this study is to design and manufacturing of packing gland using CAD/CAM system. The computer system used in this study was constructed with CPU 80386, RAM memory 4M, VGA graphic card. We was composed with CAD/CAM system, with interface PC and NC milling machine. By using develop program, we designed packing gland and it's manufactured. The basic structure of automatic production system for packing gland was established.

• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 1998년도 춘계학술대회 논문집
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• pp.106-111
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• 1998

NC code has to be made after changing the drawing information to DXF file, the converting file. Arranging the information ordered irregularly when DXF file is made decrease the unnecessary time of rapid feed during working and the DATA capacity when the information is changed. This CAM program can be used easely for the beginner of the minor enterprises. The connection of operations and the use of GUI increase business efficiency.

• 산업기술연구
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• 제12권
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• pp.69-76
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• 1992

An attempt has been made to determination the NC milling machine's tool-path through the adaptive parabolic interpolation method & the adaptive linear-parabolic interpolation method in consideration of the economical machining time. The algorithms for the above-mentioned interpolation methods have been designed and the numerical experiments for these methods have been conducted with the existing adaptive linear interpolation methods for comparision.

• 한국정밀공학회지
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• 제17권5호
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• pp.34-40
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• 2000

최근 CNC에는 또 하나의 전기를 마련할 수 있는 여러 가지 새로운 이슈들이 등장하고 있다. 첫 번째 이슈는 고도로 발달해가고 있는 반도체 산업의 영항으로 CPU의 속도가 기하급수적으로 달라지고 있고 메모리 용량이 상상을 초월할 정도로 급속한 발전을 거듭하고 있다. 이런 환경 속에서 자연스럽게 CNC도 성능이 우수한 하드웨어와 그 성능에 어울리는 고급 소프트웨어 탑재가 요구된다. 두 번째 이슈는 기존의 공작기계에서 생각하지 못했던 개념의 변화이다.(중략)

• 한국안전학회지
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• 제15권2호
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• pp.31-35
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• 2000

After constructing master model utilizing CAD data originated by sketch, product NC data for polyurethane foam using digitized master model data. And model cutting is performed utilizing specially developed polyurethane foam cutting tool in machining center. In this study, it is discussed to construct concept of tool offset, method of tool offset and feature tolerance, etc., that is impossible for cutting of the polyurethane foam by CNC machine.

• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 1996년도 춘계학술대회 논문집
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• pp.149-154
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• 1996

The applicability of a new method, termed the whirling motion concept, for the iprovement of the surface finish in milling three-dimensional sculptured surfaces has been investigated. A method for implementing this concept on conventional NC machines that utilize a suitably configured attachment has been proposed. The tool path equation for the ball-end milling process, based on the Surface-Shaping system, has been obtained. Both results of the computer simulation and the experiment verified the computer simulation and the experiment verified the proposed approach.