서지주요정보
박판의 점진적 성형 공정의 성형성 향상에 대한 연구 = Study on the improvement of formability for incremental sheet metal forming
서명 / 저자 박판의 점진적 성형 공정의 성형성 향상에 대한 연구 = Study on the improvement of formability for incremental sheet metal forming / 김태정.
저자명 김태정 ; Kim, Tae-Jeong
발행사항 [대전 : 한국과학기술원, 1998].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8008577

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 98025

휴대폰 전송

도서상태

이용가능

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반납예정일

초록정보

In order to obtain the competitiveness in the field of industrial manufacture, reduction of development period and small batch manufacture of products are required. In order to meet these requirements, many new forming processes of trial manufacturing have been proposed. Recently incremental sheet metal forming processes have been developed and have shown a possibility of effective forming processes. In these processes, the small local region of a sheet blank is incrementally deformed by moving a hemispherical head tool over an arbitrary surface. Therefore, it is possible to produce three-dimensional and non-symmetric parts directly from the CAD data. In addition, a sheet blank is stretched with drastically improved formability as compared with conventional stretch forming. In this work, an incremental sheet metal forming process controlled three-dimensionally by computer has been accomplished. It has been shown by the experiment that a sheet blank is subject to shear-dominant deformation. Thickness strain distribution from the experiment is in accord with that derived from the analytic calculation. Therefore, a method for the improvement of formability based on assumption that a sheet blank is deformed by only shear deformation has been proposed. The uniformity of thickness throughout the deformed region is one of key factors to improve the formability of sheet metal forming process. Since the reduction of thickness results from the shear deformation, it is important to distribute the region which is deformed by shear deformation uniformly. Using the predicted thickness strain distribution, the intermediate geometry is decided in the manner that the shear deformation is restrained in the highly shear-deformed region and vice versa. This double pass forming method is found to be very effective so that the thickness strain distribution of a final shape can be made more uniform

서지기타정보

서지기타정보
청구기호 {MME 98025
형태사항 iii, 68 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Tae-Jeong Kim
지도교수의 한글표기 : 양동열
지도교수의 영문표기 : Dong-Yol Yang
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 32-33
주제 성형성
박판의 점진적 성형
중간형상
전단변형
Formability
Incremental sheet metal forming
Intermediate
Shear
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