Abstract
Thanks to their low density and high strength, the 7XXX series aluminum alloys are widely used as a support/beam parts in the aerospace industry. This alloy is target in the lightening studies of the automotive industry and surveys for sheet metal are still in progress. It is a series of alloys that can be applied to the aging process and has the most effect on mechanical properties. As formability is quite weak, methods are investigated. In this study, tensile test, bending test and Erichsen tests are performed at different deformation rates and temperatures. As a result of the experiments, it has been seen that the formability increases at high temperature and low deformation rates. If paint baking time is long, there will be no loss of strength. Also, the bending process is modeled with the help of the finite element analysis programs and the springback estimations are examined. It is seen that the results of the modeling process are quite successful. The effect of the strain rate sensitivity is determined.
Highlights
Increasing oil prices and environmental pollution, as in all industries, cause the automotive industry into research on the use of new materials
The 7XXX series aluminium alloy, which is frequently used in the aerospace industry, has been not yet widely used in the automotive industry
The aim of this study is to investigate the effect of paint baking process on aging
Summary
Increasing oil prices and environmental pollution, as in all industries, cause the automotive industry into research on the use of new materials. The 7XXX series aluminium alloy, which is frequently used in the aerospace industry, has been not yet widely used in the automotive industry. In spite of its low density, it is a material that attracts attention due to its high strength in the lightening process. The first is the use of a material with high strength in a thinner thickness. A reduction of about 60% can be achieved if low-density aluminium is used instead of using steel in the B pillar section of the automobile [2]. It is stated that decreasing the density instead of increasing the strength will provide more lightening [3]
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