Research on Two-Step Hydro-Bulge Forming of Ellipsoidal Shell with Larger Axis Length Ratio

• 作 者: Shi-Jian Yuan Lan Hu Zhu-Bin H
• 机 构: NationalKeyLaboratoryofPrecisionHotProcessingofMetals,ShanghaiAerospaceEquipmentsManufacturer
• 出 处: 哈尔滨工业大学学报：英文版
• 发表日期: 2013年3期
• 基金项目: Sponsored by the National Natural Science Foundation of China （Grant No. 59975022 and 50275034）

The two-step hydro-bulge forming technique was proposed to manufacture the ellipsoidal shell with the length ratio of the long axis to the short axis larger than 1.4. A central tube was introduced into the first step of the hydro-bulge forming process to