CAJ | 학술논문

为探讨带筋管整体成形的可行性，通过实验方法初步探讨了带筋管整体成形的力学条件及关键影响因素。实验结果表明，在消除筋板内环的径向、轴向和环向自由度后，充液压形工艺可实现带筋管的整体成形；采用充液压形工艺可以成形出高径比为5，径厚比为42．5的带筋椭圆紫铜管件。单自由度影响实验表明，侧翻和起皱是带筋管充液压形的两类典型缺陷，消除轴向自由度，可抑制侧翻缺陷的发生，消除环向自由度同时保持环向拉应力状态，有助于消除起皱缺陷。
위탐토대근관정체성형적가행성，통과실험방법초보탐토료대근관정체성형적역학조건급관건영향인소。실험결과표명，재소제근판내배적경향、축향화배향자유도후，충액압형공예가실현대근관적정체성형；채용충액압형공예가이성형출고경비위5，경후비위42．5적대근타원자동관건。단자유도영향실험표명，측번화기추시대근관충액압형적량류전형결함，소제축향자유도，가억제측번결함적발생，소제배향자유도동시보지배향랍응력상태，유조우소제기추결함。
To explore the practicality of whole forming for stiffened tube, hydro-assisted forming is carried out.The mechanical boundary conditions and the key parameters are also explored.Experiment results illustrate it is possible for stiffened tube whole forming under hydro-assisted.The main mechanical boundary conditions are removing all degrees of freedom of the inner side of rib.A stiffened tube with elliptic cross section is formed successfully, whose ratio of height to inner radius and inner radius to thickness reach to 5 and 42.5 respectively.Wrinkling and collapse are two typical defects during hydro-assisted forming.It is useful to eliminate axial degree of freedom for preventing collapse defect.Eliminating hoop degree of freedom is help to prevent wrinkling.