Adnan, M.F. and Abdullah, A.B. and Samad, Zahurin
(2017)
Effect of annealing, thickness ratio and bend angle on springback of AA6061-T6 with nonuniform thickness section.
MATEC Web of Conferences, 90 (01002).
pp. 1-11.
ISSN 2261-236X
Abstract
Non-uniform thickness section section is considered one of the
most effective approaches to reduce automotive part weight. Reduction in
term of mass and size result in less fuel consumption and greenhouse
gases. Thickness is the most significant parameter to formability, therefore
forming a section with non-uniform thickness becomes a great challenge.
Improper process and incorrect decision may lead to severe defect and one
of the main concerns is the springback. This study will focus on springback
behaviour of non-uniform thickness AA6061 strip with complex profile
using Taguchi Method. Profile projector (PC 3000) is used to measure the
spring back and two-line technique is applied to measure angles (after
loading) between two lines. Three parameters (i.e. annealing temperature,
thickness ratio and bend angle) are studied, and results determine that the
most significant parameter is bend angle, followed by thickness ratio, and
then by the annealing temperature of the specimen during bending process.
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