TY - JOUR
T1 - Effects of interfacial friction distribution on the superplastic forming of AA5083
AU - Albakri, Mohammad I.
AU - Jarrar, Firas S.
AU - Khraisheh, Marwan K.
PY - 2011
Y1 - 2011
N2 - This paper studies the effects of interfacial friction distribution on the integrity of superplastic formed parts. For that purpose, the deformation of AA5083 superplastic aluminum alloy into a long rectangular box is investigated. The die surface is divided into five regions for local application of friction coefficients. The commercial finite element code, ABAQUSTM, is used to carry out the forming simulations and calculate the thickness distribution, forming time, and forming pressure profile for different combinations of friction coefficients. It is found that friction distribution at the die-sheet interface strongly affects the metal flow during the forming process, which has a direct impact on deformation stability and strain localization. With the proposed optimal variable friction distribution, the quality of the formed parts has been enhanced, while reducing the required forming time.
AB - This paper studies the effects of interfacial friction distribution on the integrity of superplastic formed parts. For that purpose, the deformation of AA5083 superplastic aluminum alloy into a long rectangular box is investigated. The die surface is divided into five regions for local application of friction coefficients. The commercial finite element code, ABAQUSTM, is used to carry out the forming simulations and calculate the thickness distribution, forming time, and forming pressure profile for different combinations of friction coefficients. It is found that friction distribution at the die-sheet interface strongly affects the metal flow during the forming process, which has a direct impact on deformation stability and strain localization. With the proposed optimal variable friction distribution, the quality of the formed parts has been enhanced, while reducing the required forming time.
KW - AA5083
KW - interfacial friction
KW - superplastic forming
KW - thinning factor
UR - http://www.scopus.com/inward/record.url?scp=79960666075&partnerID=8YFLogxK
U2 - 10.1115/1.4004159
DO - 10.1115/1.4004159
M3 - Article
AN - SCOPUS:79960666075
SN - 0094-4289
VL - 133
JO - Journal of Engineering Materials and Technology
JF - Journal of Engineering Materials and Technology
IS - 3
M1 - 031008
ER -