Fundamentals and Processes of Fluid Pressure Forming Technology for Complex Thin-Walled Components

• 作者: Shijian Yuan
• 来源期刊: 工程（英文）
• 年，卷（期）: 2021,（3）
• 所属期刊栏目: Metal Forming Technology—Review
• 页码范围: 358-366
• 页数: 9页
• 语种: 英文

摘要

A new generation of fluid pressure forming technology has been developed for the three typical struc-tures of tubes,sheets,and shells,and hard-to-deform material components that are urgently needed for aerospace,aircraft,automobile,and high-speed train industries.In this paper,an overall review is introduced on the state of the art in fundamentals and processes for lower-pressure hydroforming of tubular components,double-sided pressure hydroforming of sheet components,die-less hydroforming of ellipsoidal shells,and dual hardening hot medium forming of hard-to-deform materials.Particular attention is paid to deformation behavior,stress state adjustment,defect prevention,and typical appli-cations.In addition,future development directions of fluid pressure forming technology are discussed,including hyper lower-loading forming for ultra-large non-uniform components,precision forming for intermetallic compound and high-entropy alloy components,intelligent process and equipment,and pre-cise finite element simulation of inhomogeneous and strong anisotropic thin shells.