Abstract
Electrohydraulic forming is a kind of high-velocity forming process that can improve the formability of materials compared with quasi-static forming. Due to the lack of adequate material supplementation of the forming area, this method always faces problems such as uneven thinning and bursting when bulging tubes to required radial depths. To solve the above shortcomings and promote the material flow for the electrohydraulic forming process, this paper introduces an additional push coil to generate an axial electromagnetic force at the end of the tube. First, a finite element model was established to design the parameters of the push coil and the developed forming system. Then, a series of experiments using aluminum alloy tubes (AA6061-O) were conducted to verify the effectiveness of the proposed system. The results show that the limitation of the tube bulging depth can be increased by approximately 21.5%, and the thickness reduction can be reduced by more than 44% compared with conventional electrohydraulic forming. In addition, the forming morphology for tubes can be adjusted by the use of different combinations of discharge voltages for the push coil and exploding wire. The developed method and obtained results are of great value for improving the forming ability of electrohydraulic forming.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.