Enhancing Multistage Deep-Drawing and Ironing Manufacturing Processes of Axisymmetric Components: Analysis and Experimentation

Ramı́rez, Francisco J.; Domingo, Rosario; Packianather, Michael; Sebastián, Miguel Ángel

doi:10.1155/2014/596128

Cited by 4 publications

(2 citation statements)

References 19 publications

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“…Sometimes wall ironing is purposefully accompanied with deep drawing for achieving cups with greater height-to-diameter ratio, reduced uniform wall thickness [8][9][10][11] and optimisation in process time 12 .According to Saleh and Ali 5 , drawing with ironing also helps in increasing the LDR value. Moreover, the metal forming due to ironing is not affected by normal plastic anisotropy (r m ) value, rather it reduces earring effect 1 .…”

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12 mm Thick Circular Blanks of Al-killed AISI 1020 Steel -Applied for Cylindrical Cup Manufacturing by Multistage Deep Drawing with Simultaneous Ironing

et al. 2016

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In this paper a new modified processing route has been proposed for producing long cylindrical cups from 12 mm thick circular blanks of AISI 1020 steel (Aluminium (Al) -killed). In this route, flat blanks were made to preformed shape by stamping operation, followed by multistage deep drawing processes(without blank-holder and with inter-stage stress relief annealing) to increase cup depth. Wall ironing was also purposefully included in each draw step to reduce wall thickness and earing tendency on cup edges. Thus, evolution of wall thickness distribution, Drawability and Ironability, punch force history, and strain distribution profiles on outer cup surfaces were obtained as the effects of interaction between processes, tools and material. The overall draw stages showed: LDR 2.06; overall draw reduction >50% with a drawing efficiency ~72%; LIR 3.55; overall ironing reduction >70% with an ironing efficiency ~68%, which were achieved in the experimental works.

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12 mm Thick Circular Blanks of Al-killed AISI 1020 Steel -Applied for Cylindrical Cup Manufacturing by Multistage Deep Drawing with Simultaneous Ironing

et al. 2016

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“…The higher limiting drawing ratio (LDR) ratio was achieved by Ramezani et al [8] using the Marform process with the development of the analytical and numerical models. Ramirez et al [9] proposed an optimum technique for the combined multi-stage drawing and ironing process to improve the total time and cost of manufacturing the Brass UNS C26000 axis-symmetric components. The algorithm based on the diameter, length, and velocity of each stage was utilised with the numerical and experimental approach to optimize the solution.…”

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Multi-stage deep drawing process of axis-symmetric extra deep drawing steel cylindrical cup

Babu

Chinnapandi

2020

Eng. Res. Express

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The paper investigates the design and optimization of the multi-stage deep drawing process for the axissymmetric extra deep drawing (EDD) Steel cup. The geometrical and process parameters are focused on eliminating defects like thinning, thickening, and wrinkling. The explicit analysis is carried out by using a 3-dimensional finite element model to optimize the total number of deep drawing stages. The proposed multi-stage deep drawing process sequences are numerically simulated and the obtained strain distribution is utilized for the generation of forming limit diagram (FLD) for predicting the defects such as thinning and wrinkling. The numerically generated FLD is further validated by using analytical models such as Keeler Brazier and North American deep drawing research group (NADDRG). The obtained results point out that the proposed design process sequences can be implemented successfully without failure. Among both, the optimized design process sequence has better accuracy with less thickness variation compared to the design sequence with a bulge at the bottom. Nomenclature D Blank diameter, (mm) d 1 Punch diameter, (mm) t Initial metal thickness, (mm) d 1 Die diameter, (mm) r Die corner radius, (mm) p Specific blank holding pressure, (N mm −2 ) R m Tensile strength of material, (N mm −2 ) r 0 Anisotropic coefficient in rolling direction 0°r 45 Anisotropic coefficient in rolling direction 45°r 90 Anisotropic coefficient in rolling direction 90°n Strain hardening exponent ε 1 Major strain ε 2Minor strain β Actual drawing ratio β max Maximum drawing ratio RECEIVED

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An investigation of hybrid models FEA coupled with AHP-ELECTRE, RSM-GA, and ANN-GA into the process parameter optimization of high-quality deep-drawn cylindrical copper cups

Sivam

Rajendran

Harshavardhana

2022

Mechanics Based Design of Structures and Machines

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Enhancing Multistage Deep-Drawing and Ironing Manufacturing Processes of Axisymmetric Components: Analysis and Experimentation

Cited by 4 publications

References 19 publications

12 mm Thick Circular Blanks of Al-killed AISI 1020 Steel -Applied for Cylindrical Cup Manufacturing by Multistage Deep Drawing with Simultaneous Ironing

12 mm Thick Circular Blanks of Al-killed AISI 1020 Steel -Applied for Cylindrical Cup Manufacturing by Multistage Deep Drawing with Simultaneous Ironing

Multi-stage deep drawing process of axis-symmetric extra deep drawing steel cylindrical cup

An investigation of hybrid models FEA coupled with AHP-ELECTRE, RSM-GA, and ANN-GA into the process parameter optimization of high-quality deep-drawn cylindrical copper cups

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