서지주요정보
자유 환상 압연에 관한 이론과 실험적 연구 = An analytical and experimental study on the free ring-rolling process
서명 / 저자 자유 환상 압연에 관한 이론과 실험적 연구 = An analytical and experimental study on the free ring-rolling process / 조남선.
저자명 조남선 ; Cho, Nam-Seon
발행사항 [서울 : 한국과학기술원, 1980].
Online Access 원문보기 원문인쇄

소장정보

등록번호

4001007

소장위치/청구기호

학술문화관(문화관) 보존서고

MPE 8026

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

초록정보

The study is concerned with an analysis of the roll torque using a three-dimensional upper-bound theory for the free ring-rolling process where a spread in the width direction is permitted. Emphasis is also put on the development of a hydraulic equipment for the horizontal ring-rolling machine. The theoretical development includes the effect of the difference in the roll diameters of the driven roll and the pressure roll, and the determination of the spread. The ring material is assumed to be rigid-perfectly plastic at the given instant of deformation. Moreover, deformation zone is assumed to be steadystate disregarding the inward movement of the pressure roll and only the rotational velocity is considered. A kinematically admissible velocity field is derived by finding the equation of a stream line while permitting the difference in roll diameters and the inclusion of the spread. The upperbound method is then applied in order to calculate the theoretical roll torque and also to predict the amount of spread on the free ring surface under constant feed rate. The experiments are carried out for the annealed aluminum alloy (Al 2014) at room temperature. Comparison of the experimental observation with the theoretical predictions shows that they are in reasonable agreement with each other.

서지기타정보

서지기타정보
청구기호 {MPE 8026
형태사항 vii, 48 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Nam-Seon Cho
지도교수의 한글표기 : 양동열
지도교수의 영문표기 : Dong-Yol Yang
학위논문 학위논문(석사) - 한국과학기술원 : 생산공학과,
서지주기 참고문헌 : p. 47-48
주제 Hydraulic machinery.
Plastic analysis.
Rolling contact.
환상 압연. --과학기술용어시소러스
압연 이론. --과학기술용어시소러스
압연 하중. --과학기술용어시소러스
강소성. --과학기술용어시소러스
Ring rolling (Metal-work)
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