서지주요정보
탄소섬유 에폭시 복합재료를 이용한 공작기계 주축부의 설계 및 특성 평가에 관한 연구 = Design and testing of the carbon fiber epoxy composite spindle for a machine tool
서명 / 저자 탄소섬유 에폭시 복합재료를 이용한 공작기계 주축부의 설계 및 특성 평가에 관한 연구 = Design and testing of the carbon fiber epoxy composite spindle for a machine tool / 최진경.
저자명 최진경 ; Choi, Jin-Kyung
발행사항 [대전 : 한국과학기술원, 1999].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8009639

소장위치/청구기호

학술문화관(문화관) 보존서고

DME 99034

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Recently in manufacturing field, high precision products as well as diversified small-quantity products have been demanded and the spearhead production technologies constantly have been developed for low production cost. Therefore, a growing interest in shorter machining time with increasing cutting speed has been taken. However, the spindle speed increase of machine tools for productivity improvement also incurred the chattering, noise and heat generation of spindle bearing systems. Since the interference between cutting tools and workpieces during machining produces high energy, the chattering of machine tools occurs if the width of cut or the cutting speed exceeds the stability limits of machine tools. The chattering which is a vibration of a cutting tool relative to a workpiece not only makes the surface accuracy of products worse but also increases tool wear. From the machine tool dynamics, it has been known that the maximum width of cut is proportional to static stiffness and damping ratio at the cutting point of machine tools and chattering occurs near the natural frequencies of machine tool structures. Therefore, the material for the machine tool structure should have high stiffness and damping in its property to improve both the static and dynamic performances. Sometimes high specific stiffness (E/() is more important than stiffness (E) to increase the natural frequency of the structure in high speed machining. The machine tool structure can be stiffened through the use of proper materials such as composite materials for the spindle even if the properties of the other parts of the machine tool cannot be completely controlled. As the fiber reinforced composite material has excellent properties for structures, owing to its high specific modulus, high damping and low thermal expansion, the vibrational and thermal characteristics will be improved if the proper design and manufacturing methods for the composite spindle systems are developed. In this paper, the design and manufacturing methods as well as the static, dynamic thermal characteristics of the carbon fiber epoxy composite spindle bearing system and the aerostatic bearing system were investigated using analytical and experimental methods to improve the performance of the spindle bearing system and the aerostatic bearing system. Moreover, the design and the manufacturing methods of the steel-composite hybrid headstock were investigated.

서지기타정보

서지기타정보
청구기호 {DME 99034
형태사항 xii, 150 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Jin-Kyung Choi
지도교수의 한글표기 : 이대길
지도교수의 영문표기 : Dai-Gil Lee
학위논문 학위논문(박사) - 한국과학기술원 : 기계공학과,
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