TY - GEN
T1 - An experimental study on direct current dieless drawing of 4130 steel tubes
AU - Nikhare, Chetan P.
AU - McMahon, Paul
AU - Aqlan, Faisal
N1 - Funding Information:
This research is funded by the National Science Foundation NSF RET-#1711603: RET Site in Manufacturing Simulation and Automation. Any opinions, findings, or conclusions found in this paper are those of the authors and do not necessarily reflect the views of the sponsor.
Publisher Copyright:
© 2019 ASME.
PY - 2019
Y1 - 2019
N2 - Forming of tubes in various shapes has been a major interest in vehicle, instrumentation, decoration and precision industries. Due to a variety of shapes that can be achieved by tube forming, this manufacturing process has taken a major part in research and application. In this manufacturing process, a tube with a certain diameter and thickness can be considered to shape the part. The shaping or forming can be achieved by end forming, expanding the section, bending the section, buckling the tube, and/or reducing the section. Traditionally, to form these sections the rigid tool, flexible tool or fluid pressure would be needed to shape the tube. However, tools like mandrel or plug and their sizes limit the size of the tube to be formed. In this paper, tubes are formed by stretching them while simultaneously passing the direct current through. This process has been explored earlier by heating the tube using induction heating or rotary laser heating method. However, as no dies or tools are used to form these tubes, the process is considered dieless tube drawing which involves heating the tubes and drawing them into a reduced section. This study considers two different thicknesses but the same outer diameter tubes. The drawing force, shape, and microstructure are investigated. Based on the stress-strain curve, the yield to fracture and tensile to fracture strains are determined and discussed.
AB - Forming of tubes in various shapes has been a major interest in vehicle, instrumentation, decoration and precision industries. Due to a variety of shapes that can be achieved by tube forming, this manufacturing process has taken a major part in research and application. In this manufacturing process, a tube with a certain diameter and thickness can be considered to shape the part. The shaping or forming can be achieved by end forming, expanding the section, bending the section, buckling the tube, and/or reducing the section. Traditionally, to form these sections the rigid tool, flexible tool or fluid pressure would be needed to shape the tube. However, tools like mandrel or plug and their sizes limit the size of the tube to be formed. In this paper, tubes are formed by stretching them while simultaneously passing the direct current through. This process has been explored earlier by heating the tube using induction heating or rotary laser heating method. However, as no dies or tools are used to form these tubes, the process is considered dieless tube drawing which involves heating the tubes and drawing them into a reduced section. This study considers two different thicknesses but the same outer diameter tubes. The drawing force, shape, and microstructure are investigated. Based on the stress-strain curve, the yield to fracture and tensile to fracture strains are determined and discussed.
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U2 - 10.1115/MSEC2019-2906
DO - 10.1115/MSEC2019-2906
M3 - Conference contribution
AN - SCOPUS:85076467294
T3 - ASME 2019 14th International Manufacturing Science and Engineering Conference, MSEC 2019
BT - Processes; Materials
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2019 14th International Manufacturing Science and Engineering Conference, MSEC 2019
Y2 - 10 June 2019 through 14 June 2019
ER -