Indiana University-Purdue University Indianapolis (IUPUI) / Aluminum extrusion is a metal forming process used for the production of a large
variety of solid, semi-solid and complex hollow products. During extrusion, the hot
aluminum billet goes under severe plastic deformation as it is forced to flow through a
smaller die cavity that defines the final shape of the extruding product. Surface finish and
dimensional accuracy are the two most important criteria that specify the productivity and
feasibility of the extrusion process which is highly influenced by the flow of aluminum
through the deforming die. Therefore, die design is considered as one of the most
important characteristics of the extrusion process that influences aluminum flow, quality
of the extruding product and its dimensional accuracy.
Currently, development of extrusion dies is primarily based upon the empirical
knowledge of the die designer gained through trial and error, which inevitability is an
expensive, time consuming and ineffective method. However, owing to the technological
advancements of this century in the field of finite element modeling, this decade old trial
and error method can now be replaced by numerical simulations that not only save time
and money but also, can accurately predict the flow of aluminum through a die as well as
predict die deformation occurring during the extrusion process The motivation of this
research project came from a private extrusion die manufactures need for improving their
pioneered modular die based on good analytical and scientific understanding of the dies
performance during the extrusion process.
In this thesis, a commercial simulation package Deform 3D is used to simulate the
thermo-mechanical interactions of aluminum flow through the deforming modular die for
the production of Micro Multi-Port (MMP) tubes.
| Identifer | oai:union.ndltd.org:IUPUI/oai:scholarworks.iupui.edu:1805/6627 |
| Date | January 2015 |
| Creators | Bakhtiani, Tushar P. |
| Contributors | El-Mounayri, Hazim, Zhang, Jing, Anwar, Sohel |
| Source Sets | Indiana University-Purdue University Indianapolis |
| Detected Language | English |
| Type | Thesis |
| Rights | Attribution-NonCommercial-NoDerivs 3.0 United States, http://creativecommons.org/licenses/by-nc-nd/3.0/us/ |
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