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Indexed by:期刊论文

Date of Publication:2018-01-01

Journal:CIRP ANNALS-MANUFACTURING TECHNOLOGY

Included Journals:SCIE

Volume:67

Issue:1

Page Number:281-284

ISSN No.:0007-8506

Key Words:Hydroforming; Aluminium; Impact

Abstract:High strain rate (HSR) forming has been found to be able to enhance the formability of sheet metals like electro-magnetic forming. Impact hydroforming (IHF) is proposed, in which the sheet is formed with high-pressure pulse combining hydroforming and HSR forming. An IHF bulge test setup was designed, 5A06 aluminium sheet was tested with strain rate of 2x10(3)s(-1) showing remarkable thickness strain increase compared with quasi-static condition. A new IHF equipment is designed, the IHF process was verified effective with the equipment, complicated aluminium aircraft sheet part with high drawing ratio was formed that cannot be formed with quasi-static hydroforming. (C) 2018 Published by Elsevier Ltd on behalf of CIRP.