Affiliation:
1. Tianjin Long March Launch Vehicle Manufacturing Co. Ltd
2. Capital Aerospace Machinery Company
Abstract
Viscous pressure forming (VPF) is a new developed sheet soft-punch forming process in 1900s. The basic principle and characteristics of VPF are described. The applications of VPF technologies of nickel-based super-alloy corrugated thin-walled part, asymmetrical thin-wall part with variable diameter, super-alloy thin-walled part with variable diameters, corrugated thin-walled part with larger diameter and small section are presented. The results show that VPF is suitable for the forming of parts with high strength, low plasticity, super thin-wall and complex shaped.
Publisher
Trans Tech Publications, Ltd.
Reference13 articles.
1. Wang Zhongren, Teng Bugang, Tang Zejun. New Development of Plasticity Process Technology[J]. Chinese Journal of Mechanical Engineering, 2009, 20(1): 108-112.
2. W. Singer, H. Kaiser, X. Singer, G. Weichert. Hydroforming of Super-conducting Tesla Cavities[J]. Journal of Metal Processing Technology, 2000, 87: 102-108.
3. Fang Li, Richard Patton, Khurram Moghal. The relationship between weight reduction and force distribution for thin wall structures[J]. Thin-Walled Structures, 2005, 43: 591-616.
4. M. L. Roades, L. J. Roades. Method and Apparatus for Die Forming Sheet Material[P], United States Patent No. 5085058, Feb4, (1992).
5. J. Liu, B. Westhoff, M. A. Ahmetoglu, T. Altan. Application of Viscous Pressure Forming (VPF) to Low Volume Stamping of Difficult-to-form Alloys Results of Preliminary FEM Simulations[J]. Journal of Materials Processing Technology, 1996, 59: 49-58.