Dieless Drawing of Bars, Rods, Tubes, and Wires

Tiernan, Peter

doi:10.1016/b978-0-08-096532-1.00310-1

Cited by 2 publications

(4 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to the movement direction of the heating coils, dieless drawing can be operated in three types of set-ups [17]: (a) continuous drawing type; (b) backward non-continuous drawing type; and (c) forward non-continuous drawing type, in which the heating coil is fixed, moves backward, and moves forward, respectively. A dieless drawing machine was developed by the present authors.…”

Section: Dieless Drawing Experimentsmentioning

confidence: 99%

“…After that, the current frequency and input power inside the induction coil were set. After element meshing in the wire was completed, the thermal conductivity of the wire at 100 °C and 500 °C were set as 17 The elongations at different forming temperatures in different atmospheres are shown in Figure 8. We can find that the elongation increased as the forming temperature increased.…”

Section: Finite Element Modelling With Induction Heating Modementioning

confidence: 99%

Section: Finite Element Modelling With Induction Heating Modementioning

confidence: 99%

See 2 more Smart Citations

Formability Analysis and Oxidation Layer Effects in Dieless Drawing of Stainless Steel Wires

Hwang

Liu

2019

Metals

View full text Add to dashboard Cite

In this study, dieless drawing experiments of stainless steel SUS304 wires of 1 mm in diameter were carried out using a self-developed dieless drawing machine. In order to prevent oxidation, argon gas was applied to a self-designed chamber during dieless drawing processes. The effects of the forming temperature and the oxide layer on the mechanical properties of the drawn SUS304 stainless wires obtained by tensile tests are discussed in this paper. A finite element model considering the high frequency induction heating mode in the finite element software DEFORM2D was developed to conduct the heat transfer analysis and the formability analysis of the drawn products in dieless drawing of stainless steel wires. The effects of the drawing speed and forming temperature on the maximal reachable area reductions are discussed. Through the comparisons of the maximal reachable area reduction between the finite element simulations and experiments, the finite element modelling for dieless drawing processes was validated.

show abstract

Section: Dieless Drawing Experimentsmentioning

confidence: 99%

Section: Finite Element Modelling With Induction Heating Modementioning

confidence: 99%

See 1 more Smart Citation

Formability Analysis and Oxidation Layer Effects in Dieless Drawing of Stainless Steel Wires

Hwang

Liu

2019

Metals

View full text Add to dashboard Cite

show abstract

“…Dieless drawing processes are also suitable for processing hard materials that are difficult in forming or machining because there is no contact between the workpiece and tools in dieless drawing processes. [2] Recently, due to vigorous developments in micro-electromechanical system and biomedical technology, micrometal forming has drawn more attention and the demands for microtubes and microwires have increased dramatically. [3] Stainless steels and titanium alloys are two kinds of quite excellent structure materials, which have been widely applied in automotive and aerospace industries.…”

Section: Introductionmentioning

confidence: 99%

Investigations of Formability and Dynamic Recrystallization Development of Titanium Alloys During Dieless Wire Drawing Processes

Hwang

Liu

Wang

2022

steel research int.

View full text Add to dashboard Cite

This study investigates the formability and grain size evolution during the dieless wire drawing process of titanium alloy Ti–6Al–4V. First, thermocompression tests of Ti–6Al–4V billets are conducted to obtain their flow stresses at different temperatures and strain rates. Dynamic recrystallization (DRX)‐related constants and grain size prediction models for titanium alloy Ti–6Al–4V are established from the flow stress curves through regression analyses. Then, a finite element software DEFORM 2D coupled with the established DRX models is adopted for DRX volume fraction and grain size evolution simulations of titanium alloy Ti–6Al–4V during dieless wire drawing processes. The effects of various drawing conditions, such as drawing speed, drawing temperature, and area reduction, on the formability of the wire after the dieless drawing process are discussed. Finally, a dieless drawing machine with a high‐frequency induction heating apparatus and a cooling system is developed. A series of experiments of dieless drawing of titanium alloy Ti–6Al–4V wires at different drawing speeds, drawing temperatures, and cooling rates are conducted. The analytical forming limits of area reductions and grain sizes are compared with experimental values to validate the finite element analysis and DRX models.

show abstract

Dieless Drawing of Bars, Rods, Tubes, and Wires

Cited by 2 publications

References 17 publications

Formability Analysis and Oxidation Layer Effects in Dieless Drawing of Stainless Steel Wires

Formability Analysis and Oxidation Layer Effects in Dieless Drawing of Stainless Steel Wires

Investigations of Formability and Dynamic Recrystallization Development of Titanium Alloys During Dieless Wire Drawing Processes

Contact Info

Product

Resources

About