Expanding performance of friction power in material processing techniques, considerably improves the process efficiency while decreases required load and increases imposed strain by the localized material softening. This paper proposes friction-assisted tube forming (FATF) and friction-assisted tube extrusion (FATE) to deform cylindrical tubes for desirable radius and thickness. These methods were successfully examined on commercially pure copper tubes. Finite element (FE) analyses were executed to simulate heat generation, temperature, and strain fields. Using friction power in the presented methods significantly reduced processing force and enhanced imposed strain. Therefore, FATF and FATE show a great capability to forming and extrusion of the cylindrical tubes with minimum processing power. Mechanical properties of the processed tubes showed considerable changes in which yield strength and ultimate tensile strength increased 4.6 and 1.6 times greater than those from the initial values. Dynamically recrystallized fine grains with mean size of 8.3 μm were obtained compared with 60 μm for the annealed sample.
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October 2018
Research-Article
Novel Friction-Assisted Tube Forming Methods: A Comparison of Microstructure and Mechanical Properties
S. H. Hosseini,
S. H. Hosseini
School of Mechanical Engineering,
Iran University of Science and
Technology (IUST),
Tehran 16846-13114, Iran
e-mail: Hadi_Hosseini@mecheng.iust.ac.ir
Iran University of Science and
Technology (IUST),
Tehran 16846-13114, Iran
e-mail: Hadi_Hosseini@mecheng.iust.ac.ir
Search for other works by this author on:
M. Sedighi
M. Sedighi
School of Mechanical Engineering,
Iran University of Science and
Technology (IUST),
Tehran 16846-13114, Iran
e-mail: Sedighi@iust.ac.ir
Iran University of Science and
Technology (IUST),
Tehran 16846-13114, Iran
e-mail: Sedighi@iust.ac.ir
Search for other works by this author on:
S. H. Hosseini
School of Mechanical Engineering,
Iran University of Science and
Technology (IUST),
Tehran 16846-13114, Iran
e-mail: Hadi_Hosseini@mecheng.iust.ac.ir
Iran University of Science and
Technology (IUST),
Tehran 16846-13114, Iran
e-mail: Hadi_Hosseini@mecheng.iust.ac.ir
M. Sedighi
School of Mechanical Engineering,
Iran University of Science and
Technology (IUST),
Tehran 16846-13114, Iran
e-mail: Sedighi@iust.ac.ir
Iran University of Science and
Technology (IUST),
Tehran 16846-13114, Iran
e-mail: Sedighi@iust.ac.ir
1Corresponding author.
Manuscript received July 15, 2017; final manuscript received June 22, 2018; published online July 27, 2018. Assoc. Editor: Yannis Korkolis.
J. Manuf. Sci. Eng. Oct 2018, 140(10): 101008 (7 pages)
Published Online: July 27, 2018
Article history
Received:
July 15, 2017
Revised:
June 22, 2018
Citation
Hosseini, S. H., and Sedighi, M. (July 27, 2018). "Novel Friction-Assisted Tube Forming Methods: A Comparison of Microstructure and Mechanical Properties." ASME. J. Manuf. Sci. Eng. October 2018; 140(10): 101008. https://doi.org/10.1115/1.4040724
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