Deformation analysis of surface flaws in stainless steel wire drawing

Shinohara, T.; Yoshida, Kazunari

doi:10.1016/j.jmatprotec.2005.02.125

Cited by 38 publications

(21 citation statements)

References 2 publications

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“…One of the main reasons for die failures is its wear [9,10]. Considering the working conditions of drawing process, the materials which are suitable for conical die require the following properties: high hardness, high wear resistance, corrosion resistance and low friction coefficient.…”

Section: Introductionmentioning

confidence: 99%

Laminated structure optimization and drawing performance of Al2O3–TiC/Al2O3–TiC–CaF2 self-lubricating laminated ceramic conical die

Yang

Wang

Song

et al. 2015

Ceramics International

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Section: Introductionmentioning

confidence: 99%

Laminated structure optimization and drawing performance of Al2O3–TiC/Al2O3–TiC–CaF2 self-lubricating laminated ceramic conical die

Yang

Wang

Song

et al. 2015

Ceramics International

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“…FEM simulation and experiment methods were employed to analyze the deformation, strain and stress that are involved in the wire drawing process [7][8][9][10] , tube sinking drawing [11][12][13] and floating plug drawing [14][15][16] . However, the wear behavior of diamond-coated die drawing metal wire has less been investigated.…”

Section: Abstract：mentioning

confidence: 99%

Wear behavior of diamond-coated drawing dies

Lin

Sun

Shen

2011

Trans. Tianjin Univ.

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Abstract：The failure behavior of diamond-coated die was investigated experimentally and analytically through finite element method (FEM) simulation in the present work. Diamond coatings were fabricated by straight hot filament chemical vapor deposition (CVD) passing through the interior hole of the drawing die using a mixture of hydrogen and acetone as source gases. The performance tests were made under real drawing condition. Scanning electron microscopy (SEM) was used for the study of coating wear after die service. The coating wear appears on two regions of the reduction zone: one is near the entrance where the contact begins, and the other is at the end of the reduction zone. FEM simulation was made for calculating the von Mises stresses distribution on the coating and substrate during the drawing process. The present work was of great practical significance for the improvement of drawing performance of diamond-coated drawing dies.The die holes of drawing dies are required to have high surface hardness for drawing metal wires, especially for hard metals, so as to ensure the dimensional precision, smoothness of the drawn metal wires and increase the drawing die working lifetime. An effective method is to deposit a uniform diamond thin film on the interior hole surface of the WC-Co drawing dies, as the thin film diamond chemical vapor deposition (CVD) technology gradually matures. In recent years, a number of studies on the fabrication of diamond-coated drawing dies and characterization of diamond coating have been conducted. Zhang et al [1] investigated the fabrication of diamondcoated drawing dies by the hot filament CVD method. The surface morphology and thickness of diamond coating were analyzed by scanning electron microscopy (SEM) and Raman spectroscopy at different positions on the die hole surface. Sun et al [2] developed a new technology to fabricate the nanocrystalline and microcrystalline composite diamond films on the die hole surface by a two-step CVD procedure. The effects of pretreatment methods and chamber pressure on morphology, quality and adhesion of HFCVD diamond coating retreatment were studied [3] . Furthermore, tribological and wear behaviors were investigated. The influences of diamond fiber textures and surface roughness were studied through planar sliding experiments of self-mated CVD diamond coatings in dry ambient atmosphere [4,5] . An experimental and numerical approach was employed by Schmitt and Eleöd [6] to study tribological behavior of diamond coatings sliding against steel.On the other hand, a number of studies on cold drawing were also made. FEM simulation and experiment methods were employed to analyze the deformation, strain and stress that are involved in the wire drawing process [7][8][9][10] , tube sinking drawing [11][12][13] and floating plug drawing [14][15][16] . However, the wear behavior of diamond-coated die drawing metal wire has less been investigated. The main objective of this work is to explore the wear behaviors of CVD diamond-coated drawing dies.In the pre...

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“…A numerical approach has been developed based on the stream function technique and the finite element analysis to predict required power and temperature rise in wire drawing processes by Hosseinabadi and Serajzadeh [9]. Shinohara and Yoshida investigated the growth surface defects on the stainless steel wire surface during the cold drawing by finite element analysis and experiments [10]. Central bursting in wire drawing has been studied, and the effect of die parameters is discussed by McAllen and Phelan [11].…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental investigation of trapezoidal wire cold drawing through a series of shaped dies

Lin

Shen

Sun

et al. 2014

Int J Adv Manuf Technol

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Trapezoidal-shaped aluminium wires are in demand for the production of the aluminium conductor steel supported/trapezoidal wire (ACSS/TW) conductor. In this work, it is proposed to manufacture such wires by a multipass cold drawing process using a series of shaped dies with an initial aluminium wire, which has an outer diameter of 9.5 mm. The ruled surface partition method is introduced to design the intermediate die profile of the multi-pass cold drawing. It is possible to design the intermediate die profile efficiently according to the suggested reduction ratio and save time regardless of the geometric complexity. A multi-pass drawing machine and a universal testing machine are both used to investigate the drawing process of trapezoidal-shaped aluminium wires. Wire break occurs when a five-pass drawing process is introduced. The six-pass drawing process is suggested to apply in a consideration of die cost. The final production has a good surface finish and a dimensional accuracy, suitable for the production of the ACSS/TW conductor. A finite element method (FEM) simulation approach is used to analyse stress and drawing force for the proposed process. The Von Mises stress values gradually increases and the drawing force values decrease along the pass schedule. The influence of the number of the drawing passes is numerically assessed. The drawing force value and the Von Mises stress value are lower when the number of dies is larger. The numerical compute drawing force of the six-pass drawing process is compared with the experimental ones. A good agreement between the predicted and experimental results can be observed.

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Deformation analysis of surface flaws in stainless steel wire drawing

Cited by 38 publications

References 2 publications

Laminated structure optimization and drawing performance of Al2O3–TiC/Al2O3–TiC–CaF2 self-lubricating laminated ceramic conical die

Laminated structure optimization and drawing performance of Al2O3–TiC/Al2O3–TiC–CaF2 self-lubricating laminated ceramic conical die

Wear behavior of diamond-coated drawing dies

Numerical and experimental investigation of trapezoidal wire cold drawing through a series of shaped dies

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