Date of Award
2014
Publication Type
Master Thesis
Degree Name
M.A.Sc.
Department
Mechanical, Automotive, and Materials Engineering
Keywords
DP600, Dual Phase Steel, Electrohydraulic Forming
Supervisor
Green, Daniel
Supervisor
Bowers, Randy
Rights
info:eu-repo/semantics/openAccess
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Abstract
Electrohydraulic forming (EHF) is a manufacturing technique that transforms electrical energy into work. In EHF, a shockwave is produced as a result of a high-voltage electrical discharge between two electrodes in a water chamber, which travels through water toward the sheet and forms it into the final shape at high velocity. Strain rates can reach 104 s-1 in EHF. DP600 dual phase steel was formed in the Nakazima test in quasi-static (QS) condition, and EHF, performed without a mating die (free forming) and using a 34° conical die (die forming). The sheets were etched with a grid prior to testing to determine strains across each specimen. Analysis of voids was carried out to investigate the micro-mechanisms of failure in DP600 steel formed in these three processes. Nakazima specimens exhibited uniform strain behaviour up to 0.65 effective strain; EHFF up to 0.45 effective strain; and EHDF up to 0.7 effective strain.
Recommended Citation
McCallum, Brent, "Characterization of DP600 Steel Subject to Electrohydraulic Forming" (2014). Electronic Theses and Dissertations. 5173.
https://scholar.uwindsor.ca/etd/5173