서지주요정보
박판 성형을 위한 새로운 수치제어식 시작 방법의 개발 = Development of a new NC-controlled trial manufacturing process for sheet metal forming
서명 / 저자 박판 성형을 위한 새로운 수치제어식 시작 방법의 개발 = Development of a new NC-controlled trial manufacturing process for sheet metal forming / 조철훈.
저자명 조철훈 ; Cho, Cheol-Hoon
발행사항 [대전 : 한국과학기술원, 1997].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8007666

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 97086

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Industrial competitiveness in modern society depends on the ability to adapt a so-called job-shop production system to ever-changing demanding consumers. This results in more emphasis being laid on more efficient trial manufacturing techniques, the main targets of which lie in reducing the development period at low cost. In the field of trial manufacturing using sheet metal, especially automobile industry, almost parts of the process have depended greatly on the skilled workers, from which great reduction of the development period cannot be expected. A new forming technique is required. In this work, a new computerized incremental forming method having high flexibility has been developed. In the method, the ordinary tools are replaced by various small tools, and only the small local region of a sheet blank is incrementally deformed by movement of these tools. Since a small tool moves over the arbitrary surface of the dies using a NC machine, it is possible to produce three-dimensional and non-symmetric parts directly from the CAD data. Arbitrarily shaped dies are made by LOM(Laminated Object Manufacturing), which is one of the Rapid Prototyping Methods. A forming machine is designed and developed by introducing a computer to control the movement of the tools. Using the method, a sheet blank is stretched with drastically improved formability as compared with conventional stretch forming, and the surface is desirably good by ironing effect. In order to increase formability and product quality, the step-wise forming method has been proposed. For the step-wise intermediate geometry, a surface blending method and selective pre-conditioned area method have been used. The method makes the maximum strain value decreased and the strain distribution be uniform, since the deformation pass is controlled. With increasing number of passes, more improved deformation is obtained.

서지기타정보

서지기타정보
청구기호 {MME 97086
형태사항 iii, 67 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Cheol-Hoon Cho
지도교수의 한글표기 : 양동열
지도교수의 영문표기 : Dong-Yol Yang
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 25-27
주제 박판 성형
점진적 성형
단계별 성형
Sheet metal forming
Incremental forming
Step-wise forming
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