Recent developments of the advanced sheet hydroforming

Compared to the conventional sheet metal forming,the sheet hydroforming has many advantages:the simplified tools and the decreased cost of production;the formed parts with better surface quality and higher dimensional accuracy;the formed parts with complicated geometry shape etc.So it has been paid much attention in the word.Based on the innovative sheet hydroforming technologies,the basic principles and features are introduced,the recent developments are discussed and classified,and finally,the further development is indicated.