Finite element modeling and experimental results of brass elliptic cups using a new deep drawing process through conical dies

Dhaiban, Abdullah A.; Soliman, M. S. M.; El-Sebaie, M.G.

doi:10.1016/j.jmatprotec.2013.11.025

Cited by 33 publications

(18 citation statements)

References 13 publications

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“…were Al-die (SF = 0.421, DF = 0.33), Al-Al (SF = 0.405, DF = 0.418), Br-die (SF = 0.2, DF = 0.3), Br-Br (SF = DF = 0.5), Cu-Cu (SF = 1.0, DF = 1.1), Cu-die (SF = 0.53, DF = 0.36), Al-Cu (SF = 0.35, DF = 0.25) and Al-Br and Br-Cu (SF = 0.5, DF0.5)[31][32][33][34][35][36][37][38]. For these simulations, no significant variations were observed in the deformation of workpiece with the variation of static and dynamic friction coefficient values.…”

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confidence: 99%

Deformation of Stacked Metallic Sheets by Shock Wave Loading

Patil

Murkute

Shirafkan

et al. 2018

Metals

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The focus of the present work is to develop a deep understanding of deformation of stacked metal sheets with a series of different sequences by using shock wave loading. Here, experimental and numerical investigations of deformation of a single metal sheet of 1.5-mm and the stack of three metal sheets of 0.5-mm thickness of aluminum (Al), copper (Cu) and brass (Br) material were carried out. In the shock wave experiments, helium was used as the driving gas to produce a strong shock wave. Finite elements method (FEM) simulations on 3D-computational models were performed with explicit dynamic analysis, and Johnson-Cook material model was used. The obtained results from experiments of the outer diameter, thickness distribution, and dome height were analyzed and compared with the numerical simulations, and both the results are in excellent agreement. Moreover, for the same pressure load, due to lower inter-metallic friction in the stacked sheets compared to a cohesive property of the single sheet, an excellent deformation of stacked metallic sheets was observed. The results of this work indicated that the shock wave-forming process is a feasible technique for mass production of stacked metallic sheets as well as fabricating a hierarchical composite structure, which provides higher formability and smooth thickness distribution compared to a single material.

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confidence: 99%

Deformation of Stacked Metallic Sheets by Shock Wave Loading

Patil

Murkute

Shirafkan

et al. 2018

Metals

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“…The conical dies were developed by Dhaiban et al 8 for deep drawing of a brass elliptic cup which involves punching of circular blank using a single stroke with a flat headed elliptical punch through a conical die having an elliptical aperture. The effect of punch and die geometry was investigated to optimize design process by performing numerical analysis on the three-dimensional model.…”

Section: Thinning Effectmentioning

confidence: 99%

“…Effect of clearance ratio on cup thickness t = 2.4 mm at LDR (a) along major axis and (b) along minor axis. 8 …”

Section: Thinning Effectmentioning

confidence: 99%

A review on effect of thinning, wrinkling and spring-back on deep drawing process

Babu

2018

Proceedings of the Institution of Mechanical Engineers, Part B:

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There are various processes practiced in a market for manufacturing axisymmetrical cup with significant forming depth among which deep drawing process is most prompt. The deep drawing process is a forming process with ongoing interest which will have a major impact on industries in coming years. This article focuses on the current status and potential of future development of technology in the deep drawing process. First, it describes various types of approaches and techniques used in the deep drawing of different materials. This is followed by brief reviews of advantages and limitations of these technologies with its application in industries. The details of these technologies are just referred rather than explaining in detail. The further part of this article focuses on advanced methods for predicting defects like thinning, wrinkling and spring-back in deep drawing process which are mostly responsible for rejection of the components. The opportunity in the development of flexibility in deep drawing process is covered with an observed barrier in the prediction of defects such as thinning, wrinkling and spring-back. The obtained evidence indicates that deep drawing process may not be applicable for all materials, but represents an excellent opportunity in the drawing of multilayer metal and composite material sheets to complex shapes.

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“…In the conventional deep drawing method, failure is too likely to come to pass on the specimen because of the low-contact area of the sheet with the punch in the first steps of forming. Besides, since most of the sheet surface in the area between the punch tips and the blank holder is given free rein to form, wrinkles may occur on the flange or product wall [2,3]. Therefore, conical parts are normally made by spinning [4,5], explosive forming [6][7][8][9][10][11][12][13], hydroforming [14][15][16], electrohydraulic forming [17] or multi-stage deep drawing processes [14,[18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Physically-based modelling for sheet metal cone parts forming under blast loading

Alipour

2021

Mechanics & Industry

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Forming sheet metals under blast loading or the explosive forming technique has many advantages for productions, but it is restricted due to its accuracy. This paper introduces a novel theoretical-empirical study for explosive sheet metal forming based on the simple plasticity principles. It provides a method of producing the sheet metal cone parts forming under blast loading, including an analytical model and experimental validation. Firstly, a theoretical-empirical model for cone forming based on underwater explosion employing the impulse method is developed. The model on the whole revealed the relationships among the geometrical parameters of forming a process that is very useful to predict the certain explosive mass for complete forming a cone part. Afterward, a series of experiments are conducted to validate the developed model and also for the required modification in the solution. Comparing the theoretical-empirical solution and experimental results, the ability of the presented model for estimation of the explosive mass is demonstrated. Experimental results show that the theoretical model matched the experiments well.

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Finite element modeling and experimental results of brass elliptic cups using a new deep drawing process through conical dies

Cited by 33 publications

References 13 publications

Deformation of Stacked Metallic Sheets by Shock Wave Loading

Deformation of Stacked Metallic Sheets by Shock Wave Loading

A review on effect of thinning, wrinkling and spring-back on deep drawing process

Physically-based modelling for sheet metal cone parts forming under blast loading

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