Microstructural and mechanical studies of feedstock material in continuous extrusion process

Desta, Tariku; Sinha, Devendra Kumar; Ramulu, Perumalla Janaki; Tufa, Habtamu Beri

doi:10.1186/s40712-021-00135-5

Cited by 4 publications

(3 citation statements)

References 15 publications

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“…Te consequence temperature of feedstock in CEP was investigated in order to determine the optimum torque and load needed to extrude the material of feedstock thru the die orifce. Te efects of CEP input parameters on extrudate microstructural and mechanical properties were investigated [17]. Te mechanical belongings of continuously extruded rod of feedstock aluminum alloy, for instance, hardness and ultimate tensile strength, were optimized by optimizing process variables such as speed of wheel and ratio of extrusion [18].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Deformation Behaviors during Continuous Forming Extrusion of C18150 Copper Alloy through Response Surface Methodology

Desta,

Sinha,

Ramulu

2023

Journal of Optimization

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Continuous extrusion (CE) is a method of creating endless profiles of high-quality products of dimensional accurateness, high productivity, and excellent material properties. The main objective of this study is to investigate the influence of CE input process parameters on optimal overall extrusion load requirement and effective stress induced. The input parameters considered were extrusion driving wheel speed, feed metal temperature, tool temperature, and factor of friction proceeding. Numerical simulations of a copper alloy (C18150) were carried out using DEFORM-3D to investigate the impact of the input variables on total load and effective stresses. A mathematical model based on response surface methodology (RSM) was developed for optimized results. The optimized parameters in terms of wheel extrusion velocities, feedstock temperatures, tool temperatures, and friction factors expressed. The ANOVA test was performed to assess the suitability and appropriateness of the model. Using RSM, the optimal load value of 408.167 kN and effective stress of 1241.0 MPa were achieved within the composite preference of 1.0. A load of 408.167 kN had been obtained if the velocity of the wheel, temperatures of feedstock, tool temperatures, and factors of friction are 4 rpm, 500°C, 400°C, and 0.85, respectively. The minimum effective stress of 1241.0 MPa is induced in the feedstock due to the CE process if the velocity of the wheel, temperature of the feedstock, die temperature, and frictional factor were 4 rpm, 500°C, 400°C, and 0.95, respectively.

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Section: Introductionmentioning

confidence: 99%

Optimization of Deformation Behaviors during Continuous Forming Extrusion of C18150 Copper Alloy through Response Surface Methodology

Desta,

Sinha,

Ramulu

2023

Journal of Optimization

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“…Also, the authors indicated that the product's quality was obtained by a combined optimization of wheel speed and the extrusion ratio. 12,13 A method based on the Bezier formulation mathematical model is used for manufacturing vortex extrusion dies and analysing the effect of various processing parameters on strain distribution and process load. The authors investigated the effective strain rate, stress, and temperature, which were predicted by the numerical simulation analysis.…”

Section: Introductionmentioning

confidence: 99%

Experimental and theoretical investigation of extrusion load for AA6063/SiC extruded composite billet

Veerasundaram¹,

Kalaichelvan

Ramasamy³

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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Because of their great strength and stiffness with regard to their weight, extruded sections are commonly utilized as essential parts in many areas. The investigation focuses on experimental and theoretical analysis of cold extruded aluminium composites. Four types of extrusion die configurations, such as 12:8, 2:4, 12:2, and 8:4, were used to obtain the aluminium composite billets. Aluminium with 5 wt% SiC material was used for the fabrication of Ingot. The theoretical models have been used to determine the extrusion load compared with the experimental value. Moreover, the theoretical model is modified to reflect the relative significance of extrusion parameters in the extrusion process and to provide the actual value of the testing process. Also, the modified model was attributed to developing the equation for evaluating the extrusion load in the intermediate process of extrusion for all the types of extrusion die configurations. The experimentally investigated extrusion load has a 0.81% deviation with the modified model and increased with other theoretical models. Surface morphology analysis was carried out for all configurations of extruded billet components and indicated the surface quality of the extruded billet.

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“…This process needs no extra heating, thus saving energy. In addition, products with unlimited length can be manufactured, and the material utilization rate can reach more than 95% [2][3][4]. Therefore, continuous extrusion has been extensively applied for nonferrous alloys such as AM60 Mg [5], Al−Mg−Si [6], Cu−Te [7], Al−Fe−Cu [8], and Al−13Si−7.5Cu−Mg [9].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study on Flat and U-Shaped Copper Strips Produced by Continuous Extrusion

Zhou

Yun

et al. 2022

Materials

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The differences between flat and U-Shaped pure copper strips during a continuous extrusion process were investigated and analyzed through finite element simulation and experimentation. The simulation results showed that nearly all of the temperature-, velocity-, and loading-force-related parameters of the U-Shaped product at the die exit were smaller than those of the flat product, which indicated that extruding U-Shaped copper strips by continuous extrusion was superior to the flat strips. This conclusion was further verified experimentally by measuring the temperature and torque force. Then, a comparative analysis of the microstructure of the two cases was carried out. The average grain size of the U-Shaped strips was 65.6 µm, which was smaller than that of the flat strips, which was 96.7 µm. In addition, the microstructure of the U-Shaped strips was more uniform and had a higher recrystallization ratio, which can be attributed to the even and severe plastic deformation. This study thus solves the size limitation issue that existed in continuous extrusion.

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Microstructural and mechanical studies of feedstock material in continuous extrusion process

Cited by 4 publications

References 15 publications

Optimization of Deformation Behaviors during Continuous Forming Extrusion of C18150 Copper Alloy through Response Surface Methodology

Optimization of Deformation Behaviors during Continuous Forming Extrusion of C18150 Copper Alloy through Response Surface Methodology

Experimental and theoretical investigation of extrusion load for AA6063/SiC extruded composite billet

A Comparative Study on Flat and U-Shaped Copper Strips Produced by Continuous Extrusion

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