scholarly journals Lifetime in Steel Code Wire Drawing Dies of WC-Co Cemented Carbide Containing TaNbC or Cr3C2

2017 ◽  
Vol 64 (1) ◽  
pp. 17-22 ◽  
Author(s):  
Masayuki TAKADA ◽  
Hideaki MATSUBARA ◽  
Yoshihiro KAWAGISHI
Keyword(s):  
Wire Drawing ◽  
Cemented Carbide ◽  
Drawing Dies

MASS PRODUCTION OF HFCVD DIAMOND-COATED WIRE-DRAWING DIES WITHOUT FILAMENT THROUGH THE HOLE

2021 ◽  
pp. 2150006
Author(s):  
XIN SONG ◽  
CHENG-CHUAN WANG ◽  
XIN-CHANG WANG ◽  
FANG-HONG SUN
Keyword(s):  
Mass Production ◽  
Cfd Simulation ◽  
Chemical Vapor ◽  
Wire Drawing ◽  
Cemented Carbide ◽  
Small Aperture ◽  
Coated Wire ◽  
Volume Method ◽  
Hot Filament ◽  
Drawing Dies

Hot filament chemical vapor deposition (HFCVD) diamond-coated small aperture wire-drawing dies from [Formula: see text] to [Formula: see text][Formula: see text]mm are in high demand. A new deposition technique without filaments through the inner hole of wire-drawing dies is proposed, accompanied with the specially designed fixtures. Temperature distribution on the deposition surfaces is studied by computational fluid dynamics (CFD) simulation based on the finite volume method (FVM); both case study and mass production simulations are accomplished. Excellent performance and uniform multilayer MCD/NCD/MCD/NCD films are successfully deposited on the inner-hole surfaces of total 16 cemented carbide (WC-6wt.%Co) wire-drawing dies with an aperture of [Formula: see text][Formula: see text]mm in one batch. Drawing results of gas shield welding wires show that the lifespan of the multilayer diamond coated wire-drawing dies is about 20 times of the uncoated cemented carbide dies and 2 times of the monolayer MCD coated dies.

scholarly journals Lifetime in Steel Cord Wire Drawing Dies of WC–Co Cemented Carbide Containing TaNbC or Cr3C2

2018 ◽  
Vol 59 (5) ◽  
pp. 754-759
Author(s):  
Masayuki Takada ◽  
Hideaki Matsubara ◽  
Yoshihiro Kawagishi
Keyword(s):  
Wire Drawing ◽  
Cemented Carbide ◽  
Steel Cord ◽  
Drawing Dies

Research on the Wire Drawing Die Pass Parameter Calculation Based on the Least Square Algorithm

2012 ◽  
Vol 591-593 ◽  
pp. 850-853
Author(s):  
Huai Xing Wen ◽  
Yong Tao Yang
Keyword(s):  
Pore Structure ◽  
Least Squares ◽  
Least Squares Method ◽  
Piecewise Linear ◽  
Wire Drawing ◽  
Least Square ◽  
Structure Characteristics ◽  
Drawing Die ◽  
The Wire ◽  
Drawing Dies

Drawing Dies meter A / D acquisition module will be collected from the mold hole contour data to draw a curve in Matlab. According to the mold pore structure characteristics of the curve, the initial cut-off point of each part of contour is determined and iteratived optimization to find the best cut-off point, use the least squares method for fitting piecewise linear and fitting optimization to find the function of the various parts of the curve function, finally calculate the pass parameters of drawing mode. Parameters obtained compare with the standard mold, both of errors are relatively small that prove the correctness of the algorithm. Also a complete algorithm flow of pass parameters is designed, it can fast and accurately measure the wire drawing die hole parameters.

scholarly journals Wear of Cemented Carbide Dies for Steel Cord Wire Drawing

2012 ◽  
Vol 76 (6) ◽  
pp. 385-390 ◽  
Author(s):  
Masayuki Takada ◽  
Hideaki Matsubara ◽  
Yoshihiro Kawagishi
Keyword(s):  
Wire Drawing ◽  
Cemented Carbide ◽  
Steel Cord

Features of Mechanical Treatment of Zirconia Crystals when Manufacturing Dies

2021 ◽  
Vol 1037 ◽  
pp. 203-208
Author(s):  
Valery V. Alisin ◽  
Michael A. Borik ◽  
Alexei V. Kulebyakin ◽  
Elena E. Lomonova ◽  
Dmitriy M. Gutsev
Keyword(s):  
Mechanical Treatment ◽  
Wire Drawing ◽  
Drawing Process ◽  
Stabilized Zirconia ◽  
Zirconia Ceramics ◽  
Cable Industry ◽  
Drawing Die ◽  
Friction Units ◽  
Drawing Dies ◽  
Highly Loaded

Materials based on partially stabilized zirconia (ceramics and crystals) are distinguished by high values of mechanical strength, crack resistance, hardness, corrosion resistance, low coefficient of friction when operating in tandem with most metals, which makes them promising materials for a wide tribotechnical application in highly loaded friction units. An example of such a unit is the die mechanism, which is an integral part of the drawing die tool in the cable industry. These hard precision tools (drawing dies or wire dies) actually determine the ultimate success in the wire drawing process.

THE ABRASION RESISTANCE AND ADHESION OF HFCVD BORON AND SILICON-DOPED DIAMOND FILMS ON WC–Co DRAWING DIES

2017 ◽  
Vol 24 (07) ◽  
pp. 1750090 ◽  
Author(s):  
LIANG WANG ◽  
JINFEI LIU ◽  
TANG TANG ◽  
FANGHONG SUN ◽  
NAN XIE
Keyword(s):  
Adhesive Strength ◽  
Abrasion Resistance ◽  
Copper Wire ◽  
Diamond Films ◽  
Chemical Vapor ◽  
High Growth ◽  
Diamond Powder ◽  
Wire Drawing ◽  
High Growth Rate ◽  
Drawing Dies

Diamond films have been deposited on the interior hole surface of cobalt-cemented tungsten carbide (WC–Co) drawing dies from acetone, trimethyl borate (C3H9BO3), tetraethoxysilane (C8H[Formula: see text]O4Si, TEOS) and hydrogen mixture by hot-filament chemical vapor deposition (HFCVD) method. The structures and quality of as-deposited diamond films are characterized with field-emission scanning electron microscopy (FESEM) and Raman spectroscopy. The abrasion ratio and the adhesive strength of as-deposited diamond films are evaluated by copper wire drawing tests and ultrasonic lapping tests, respectively. The results suggest that diamond films with small grain size and high growth rate can be obtained due to the mutual effects of boron and silicon impurities in the gas phases. The results of ultrasonic lapping tests show that diamond films doped with boron and/or silicon can bear the severe erosion of the large diamond powder. Diamond films peeling off within the reduction zone of the drawing dies cannot be observed after testing of 2[Formula: see text]h. The abrasion ratio of boron and silicon-added diamond films is five times that of diamond films without any addition. Adding boron and/or silicon in the diamond films is proved to be an efficient way to obtain high-adhesive-strength and high-abrasion-resistance diamond-coated drawing dies.

Experimental and numerical analysis of the deformation in mild steel wire during dieless drawing

2002 ◽  
Vol 216 (3) ◽  
pp. 167-178 ◽  
Author(s):  
P Tiernan ◽  
M T Hillery
Keyword(s):  
Mild Steel ◽  
Steel Wire ◽  
Wire Drawing ◽  
Fe Model ◽  
Drawing Process ◽  
Distribution Profile ◽  
Dieless Drawing ◽  
The Wire ◽  
Drawing Dies ◽  
Good Agreement

Dieless wire drawing is the process of causing a reduction in a wire diameter without the use of conventional wire drawing dies. The wire, axially loaded with a force, is heated to an elevated temperature to initiate plastic deformation. The mechanics of this novel drawing process and a theoretical analysis of the deformation are discussed in this paper. The results of an experimental drawing programme carried out with mild steel wire at temperatures between 400 and 900°C are also presented. Mathematical models were developed and used to describe and predict the process deformation and both the stress and temperature distribution profile along the workpiece. A machine was designed and manufactured to facilitate an experimental programme of dieless drawing. The machine permitted continuous drawing of wire, while the reduction ratio, drawing load and temperature were automatically controlled using a personal computer. A finite element (FE) model of the wire was developed, and the results obtained from the FE analysis show good agreement with those obtained from both the experimental work and the mathematical modelling. Results obtained confirm that a complicated interdependence of the process parameters exists during the dieless drawing process.

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