A new analytical solution for prediction of forward tension in the drawing process

Rojas, Hernan Alberto González; Calvet, Joan Vivancos; Bubnovich, V.

doi:10.1016/j.jmatprotec.2007.06.053

Cited by 8 publications

(6 citation statements)

References 9 publications

(10 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This computer aided manufacturing (CAM) tool is based in the analytical solution known as "slab method". This method is founded in the study of the balance of forces involved in the wire-die system (Figure 3), since its mathematical implementation is simple and by virtue of which the results agree with the data from experiments and simulations that have been obtained in consulted works [5,9,40].…”

Section: Process Design By the Analytical Method: Pullwork Softwarementioning

confidence: 74%

“…Metals 2019, 9 FOR PEER REVIEW 7 Once the strain hardening law of EN AW-1370 aluminium (processed by wiredrawing) has been experimentally defined and numerically evaluated, the optimum sequence of stages for the industrial roughing wiredrawing process object of this study has been proposed with the aid of the PullWorks software application and considering all the process conditions and main variables [9,40].…”

Section: Strain Hardening Law Definition and Study Of The Samplesmentioning

confidence: 99%

“…To foretell the behaviour of a plastically-deformed ductile metal, used the Ludwik-Hollomon law [9] must be, shown in Equation (1). In this expression, C is the coefficient of resistance to plastic deformation and n is the coefficient of hardening by deformation, both constants associated with the metal.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analysis, Validation and Optimization of the Multi-Stage Sequential Wiredrawing Process of EN AW-1370 Aluminium

Rodríguez‐Alabanda

Romero

Molero

et al. 2019

Metals

View full text Add to dashboard Cite

For the wiredrawing of aluminium, the initial wire rod is obtained by continuous inverted casting. The raw geometry is industrially processed in a linear multi-step wiredrawing sequence to obtain a wire that is commonly used for the manufacture of electrical conductors. In the present work a complete study of the material has been made. The experimental procedure consisted in the realization of a sequence of section reduction stages in the laboratory, a sequence designed following the technological criteria recommended by the manufacturer of the drawing machine in which the industrial process will be implemented. From the specimens corresponding to each reduction step, it has been possible to know the evolution of the main mechanical properties when this pure aluminium is processed by wiredrawing. This information has led to establish the hardening law by which it is possible characterize the plastic behaviour of this pure metal when it is transformed by this specific sequential process of cold forming. The strain hardening law has been implemented in a numerical simulation software application and the experimental setup has been simulated for its validation. Finally, the classic analytical solution founded in the “slab method” has been applied for the design of a proposal for the optimization of the industrial wiredrawing process.

show abstract

Section: Process Design By the Analytical Method: Pullwork Softwarementioning

confidence: 74%

Section: Strain Hardening Law Definition and Study Of The Samplesmentioning

confidence: 99%

See 1 more Smart Citation

Analysis, Validation and Optimization of the Multi-Stage Sequential Wiredrawing Process of EN AW-1370 Aluminium

Rodríguez‐Alabanda

Romero

Molero

et al. 2019

Metals

View full text Add to dashboard Cite

show abstract

“…However, the additional component of the drawing stress caused by redundant work is not only a function of the die geometry but also of the ductility of the drawn metal [4]. Although this component has been yet defined and included in the analytical model based on the slab method [5,6], it must be noted that it is a complex factor that is determined as a consequence of the flow and internal dislocations that occur in the deformed material and that this model does not allow analysis. This lack can be covered by the finite element method (FEM), which allows modeling and simulating the wiredrawing process, constituting a perfect complement to experimentation since it eases to understand the material flow during the process.…”

Section: The Role Of Friction In the Wiredrawing Processmentioning

confidence: 99%

“…The wire/die contact length ratio (l/d i ), internal total contact length (L), delta parameter (Δ), and redundant work factor (ϕ) of PCD dies resulting from geometrical parameters have been determined by the Eqs. ( 1), ( 2), (3), (4), (5), and (6). The contact length explains which is the area of contact between wire/die that the lubricant needs maintain separated, and ϕ resumes the die drag capability that maintains lubricant in the interface.…”

Section: The Experimental Setting and Geometrical Datamentioning

confidence: 99%

The influences of the variable speed and internal die geometry on the performance of two commercial soluble oils in the drawing process of pure copper fine wire

Martínez

Rodríguez‐Alabanda

Prisco

et al. 2021

Int J Adv Manuf Technol

View full text Add to dashboard Cite

The cold wiredrawing process constitutes a classical-tribological system in which a stationary tribe-element (die) is in contact with a tribe-element in relative motion (wire) and both interacting with the interfacial tribe-element (lubricant). This condition is reflected in the effect of friction as a function of the drawing speed and temperature, and directly affects the wearing of the surface into the die and the final quality on the drawn wire. The aim of this work has been to determine the best conditions to process ETP-copper using two different types of oil/water emulsion lubricants. For this purpose, six different die geometries have been proposed and a set of tests have been carried out at different speeds (between 1 and 21 m/s) to determine those combinations that give a lower value in the required drawing force (Fd). The experiments allowed to know the friction coefficient (µ), the temperature profile inside the drawing die and in the lubricant and also the mean roughness (Ra) in the drawn product. The results have shown that drawing speeds above 10 m/s significantly decrease the drawing force and, as a consequence, the friction effect on the interface. The best results have been achieved in the combinations of the lower die angle (2β = 14°) with drawing speeds between 17 and 18 m/s with both types of lubricants used, obtaining the lower values of the friction coefficient between µ = 0.10–0.15 with the lubricant type D (Agip S234-60 oil at 7% concentration). It has been found that those tests carried out with dies with a smaller approach angle have generally made it possible to obtain better qualities in the final product. Additionally, FEM simulations have been done to analyse those cases with the lower values of µ, throwing values of Fd that are consistent with those measured in the experimental setting and allowing to better understand the behavior of the material as it passes through the die.

show abstract

Software implementation of a new analytical methodology applied to the multi-stage wire drawing process: the case study of the copper wire manufacturing line optimization

Rodríguez‐Alabanda

Romero

Guerrero‐Vaca

et al. 2018

Int J Adv Manuf Technol

View full text Add to dashboard Cite

A new analytical solution for prediction of forward tension in the drawing process

Cited by 8 publications

References 9 publications

Analysis, Validation and Optimization of the Multi-Stage Sequential Wiredrawing Process of EN AW-1370 Aluminium

Analysis, Validation and Optimization of the Multi-Stage Sequential Wiredrawing Process of EN AW-1370 Aluminium

The influences of the variable speed and internal die geometry on the performance of two commercial soluble oils in the drawing process of pure copper fine wire

Software implementation of a new analytical methodology applied to the multi-stage wire drawing process: the case study of the copper wire manufacturing line optimization

Contact Info

Product

Resources

About