Transactions of Materials and Heat Treatment

Title：Experimental study of dieless hydro-bulging near-soccer shape closed shell

Authors： LIU Qiang ZHANG Qi TENG Bu-gang MIAO Qi-bin WANG Zhong-ren(School of Materials Science and Engineering Harbin Institute of Technology Harbin Heilongjiang 150001 China)

Unit：

KeyWords： spherical vessel near-soccer shape closed shell dieless hydro-bulging

ClassificationCode：TG394

year,vol(issue):pagenumber：2006,31(4):27-30

Abstract：

Dieless hydro-bulging is a forming technology under inner liquid pressure applied to closed shell.The process of dieless hydro-bulging near soccer-shape closed shell is described in this paper.The deformation of typical points on the shell is measured.Finally,the preform becomes a soccer shell.The experimental results show that the maximum thickness thinning ratio is less than 3.86%,although it is not uniform in different points.

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Reference：

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