FEM Simulation of the Cold Drawing Process for Copper Strip with Diamond-Coated Shaped Die

2013 ◽  
Vol 770 ◽  
pp. 297-302
Author(s):  
Zi Chao Lin ◽  
Fang Hong Sun ◽  
Zhi Ming Zhang ◽  
He Sheng Shen ◽  
Song Shou Guo

Diamond-coated drawing dies are considered as ideal drawing dies for their unique characteristics, such as high hardness, wear resistance and low friction. To utilize the superior characteristics of diamond coatings, the FEM simulation is used to simulate the copper strip cold drawing process. The stress and the drawing load are predicted. The influence of parameters of drawing process on the drawing load is investigated. The optimal parameters are obtained.

2011 ◽  
Vol 418-420 ◽  
pp. 865-869 ◽  
Author(s):  
Zi Chao Lin ◽  
Bin Shen ◽  
Fang Hong Sun ◽  
Zhi Ming Zhang ◽  
Song Shou Guo

Diamond-coated drawing dies are considered as ideal drawing dies for their unique characteristics, such as high hardness, wear resistance and low friction. In order to utilize the superior characteristics of diamond coatings towards improving the drawing performance, the nonlinear FEM simulation is used to simulate the whole stainless steel tube hollow sinking process, with 2D axi-symmetric elastic-plastic element. Based on the simulation results, the distributions of the axial stress and radial stress are analyzed, the influence of parameters of drawing dies on the diameter shrinkage is investigated. Optimal die parameters are obtained.


2010 ◽  
Vol 154-155 ◽  
pp. 588-592 ◽  
Author(s):  
Zi Chao Lin ◽  
Fang Hong Sun ◽  
Zhi Ming Zhang ◽  
He Sheng Shen ◽  
Song Shou Guo

Diamond-coated drawing dies are considered as ideal drawing dies for their unique characteristics, such as high hardness, wear resistance and low friction. In order to optimize the parameters of diamond coated drawing dies, this study conducts a finite element method (FEM) simulation to calculate the von Mises stresses distribution on the interior-hole surfaces of diamond coated drawing die during the copper wire drawing process, and then refines the diamond coated drawing dies based on the simulation results. Furthermore, the drawing performance of the optimized diamond coated drawing die is examined in a real production of drawing copper wires, and the results show that its working lifetime increase by a factor of 12 comparing with the conventional tungsten carbide drawing die.


2012 ◽  
Vol 499 ◽  
pp. 126-131 ◽  
Author(s):  
Zi Chao Lin ◽  
Bin Shen ◽  
Fang Hong Sun ◽  
Z.M. Zhang ◽  
H.S. Shen ◽  
...  

Diamond-coated drawing dies are considered as ideal drawing dies for their unique characteristics, such as high hardness, wear resistance and low friction. In order to utilize the superior characteristics of diamond coatings towards improving the drawing performance, the nonlinear FEM simulation is used to simulate the whole low carbon steel tube hollow sinking process, with 2D axi-symmetric elastic-plastic element. Based on the simulation results, the distributions of the axial stress and radial stress are analyzed, the influence of parameters of drawing dies on the diameter shrinkage is investigated. Optimal die parameters are obtained.


2010 ◽  
Vol 33 ◽  
pp. 483-486
Author(s):  
Hai Dong Yang ◽  
Xi Quan Xia ◽  
Zhen Hua Qing

The method of “cutting instead of grinding” on hardened steel is always attractive to engineers. To gain this aim the tool material must first be found. C3N4 is a new kind of super hard material and has comparable properties with diamond in high hardness, wear-resistance, low friction coefficient and thermal conductivity. A number of dry-cutting tests were carried out by C3N4-film coated tool on hardened steel, proved the coating tool is suitable for hard dry cutting.


2021 ◽  
Vol 406 ◽  
pp. 419-429
Author(s):  
Amel Gharbi ◽  
Khedidja Bouhamla ◽  
Oualid Ghelloudj ◽  
Chems Eddine Ramoul ◽  
Djamel Berdjane ◽  
...  

The present work is a contribution in investigating the effect of heat treatment on microstructure, hardness and friction wear of A105N steel. Samples of 25x25 mm2 cross-section and 15mm thickness have been prepared from the as-received material and then heat-treated. The samples were austenitized at 1050°C for 60 minutes followed by water quenching, then tempered at 500 and 700°C for 120 minutes. Microstructural changes and their effect on the wear resistance and hardness were investigated according to the applied heat treatments. The main results show that after quenching the structure is mostly composed of quenched martensite, which confers high hardness and friction resistance to the steel. While the tempered structure is composed of tempered martensite and ferrite. As the temperature rises to 700°C, the tempered martensite decreases and is fully transformed to ferrite and cementite. A good wear resistance expressed by a low friction coefficient and a low wear rate is achieved by tempering at 500°C.


2016 ◽  
Vol 716 ◽  
pp. 63-67 ◽  
Author(s):  
Gow Yi Tzou ◽  
Dyi Cheng Chen ◽  
Shih Hsien Lin

This study proposes a cold drawing technology of wire rod with rotating die; it carries out an FEM simulation on rotating drawing using DEFORM-3D commercial software. Frictions among the die and the wire material are assumed as constant shear friction. The effective stress, the effective strain, the velocity field, and the drawing force can be determined from the FEM simulation. In this study, effects of various drawing conditions such as the rotating angular velocity, the half die angle, the frictional factor, the die filet on the drawing forming characteristics are explored effectively. From this FEM simulation, it is noted that the rotating die effect can reduce the drawing force and increase the material flow.


Metals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 174 ◽  
Author(s):  
Jose A. García ◽  
Pedro J. Rivero ◽  
Eneko Barba ◽  
Ivan Fernández ◽  
Jose A. Santiago ◽  
...  

During the last few decades, diamond-like carbon (DLC) coatings were widely used for tribological applications, being an effective tool for improving the performance and the useful life of different machining tools. Despite its excellent properties, among which stand out a high hardness, a very low friction coefficient, and even an excellent wear resistance, one of the main drawbacks which limits its corresponding industrial applicability is the resultant adhesion in comparison with other commercially available deposition techniques. In this work, it is reported the tribological results of a scratch test, wear resistance, and nanoindentation of ta-C and WC:C DLC coatings deposited by means of a novel high-power impulse magnetron sputtering (HiPIMS) technology with “positive pulses”. The coatings were deposited on 1.2379 tool steel which is of a high interest due to its great and wide industrial applicability. Finally, experimental results showed a considerable improvement in the tribological properties such as wear resistance and adhesion of both types of DLC coatings. In addition, it was also observed that the role of doping with W enables a significant enhancement on the adhesion for extremely high critical loads in the scratch tests.


Alloy Digest ◽  
1969 ◽  
Vol 18 (6) ◽  

Abstract AISI Type A10 is a high-carbon graphitic tool steel capable of developing high hardness and wear resistance. It is recommended for shear blades, blanking and forming dies, drawing dies and wear plates. This datasheet provides information on composition and hardness as well as fracture toughness. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-220. Producer or source: Timken Roller Bearing Company.


Alloy Digest ◽  
1971 ◽  
Vol 20 (8) ◽  

Abstract REYNOLDS 390 and A390 are hypereutectic aluminum-silicon alloys having excellent wear resistance coupled with good mechanical properties, high hardness, and low coefficients of expansion. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fatigue. It also includes information on high temperature performance and corrosion resistance as well as casting, heat treating, and machining. Filing Code: Al-203. Producer or source: Reynolds Metals Company.


Alloy Digest ◽  
1968 ◽  
Vol 17 (10) ◽  

Abstract HOWMET No. 3 is a cobalt-base alloy having high hardness and compressive strength, high heat and corrosion resistance, along with excellent abrasion and wear resistance. It is recommended for bushings, scrapers, valve parts, and other machinery components. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Co-56. Producer or source: Howmet Corporation Metal Products Division.


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