Determination of optimal loading profiles in hydromechanical deep drawing process using integrated adaptive finite element analysis and fuzzy control approach

Öztürk, Ekrem; Türköz, Mevlüt; Halkacı, Hüseyin Selçuk; Koç, Muammer

doi:10.1007/s00170-016-8912-x

Cited by 16 publications

(4 citation statements)

References 11 publications

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“…The plastic behaviour was modelled according to the isotropic Von Mises yield formulation. The contact between the blank and the punch was modelled according to a penalty formulation, setting the coefficient of friction between the blank and the punch equal to 0.2 [37][38][39], whereas the coefficient of friction of the other contact pairs (blank/die and blank/blankholder) was defined using the inverse analysis based on the minimization of the error between experimental data (punch load-stroke curve) and the correspondent numerical simulation.…”

Section: Fe Model Of the Deep Drawing Operationmentioning

confidence: 99%

Design and Optimization of the Local Laser Treatment to Improve the Formability of Age Hardenable Aluminium Alloys

Piccininni

Palumbo

2020

Materials

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The research of innovative methodologies to improve the Aluminium alloys formability at room temperature still remains an open question: the local modification of the material properties via short-term heat treatments followed by the stamping at room temperature is reported to be an effective alternative to the forming in warm conditions. In the present work, such a methodology has been applied to the deep drawing of an age-hardenable Aluminium alloy (AA6082-T6) using an experimental/numerical approach. A preliminary extensive material characterization was aimed at investigating the material behaviour: (i) in the as-received condition (peak hardening), (ii) in the supersaturated condition (obtained by physical simulation) and (iii) after being locally solutioned via laser heating. A Finite Element based approach (Abaqus CAE, v. 6.17) was then used to design the laser treatment of the blanks to be subsequently deep drawn at room temperature: a 2D axisymmetric model of the deep drawing process was coupled with the optimization platform modeFRONTIER in order to define the radial extent of the laser heat treated area able to maximize the Limit Drawing Ratio. The experimental tests were finally conducted for validation purposes and revealed the effectiveness of the adopted approach which allowed to improve the drawability of more than 20% with respect to the as received condition (T6).

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Section: Fe Model Of the Deep Drawing Operationmentioning

confidence: 99%

Design and Optimization of the Local Laser Treatment to Improve the Formability of Age Hardenable Aluminium Alloys

Piccininni

Palumbo

2020

Materials

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“…Another key area in the research is the implementation of Bfuzzy logic^which, as opposed to Boolean logic, can use any value between 0 and 1 [50] this means it can handle information that is partially true. Öztürk et al, implemented a fuzzy logic technique to optimize the loading profile in a sheet hydroforming operation using a punch to deep draw aluminum alloy sheets [60]. Similarly Ge et al used fuzzy logic theory to create load path in a tube hydroforming operation [50], and Manabe et al used an in-process fuzzy control system to hydroform T-shaped tubes [61] proving that fuzzy logic can be used during the process as well.…”

Section: Analytical Methods and Numerical Simulationsmentioning

confidence: 99%

A state of the art review of hydroforming technology

et al. 2019

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Hydroforming is a relatively new metal forming process with many advantages over traditional cold forming processes including the ability to create more complicated components with fewer operations. For certain geometries, hydroforming technology permits the creation of parts that are lighter weight, have stiffer properties, are cheaper to produce and can be manufactured from fewer blanks which produces less material waste. This paper provides a detailed survey of the hydroforming literature of both established and emerging processes in a single taxonomy. Recently reported innovations in hydroforming processes (which are incorporated in the taxonomy) are also detailed and classified in terms of “technology readiness level”. The paper concludes with a discussion on the future of hydroforming including the current state of the art techniques, the research directions, and the process advantages to make predictions about emerging hydroforming technologies.

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“…Dayanıklı ve hafif malzemelerin kullanımı otomotiv, havacılık ve uzay, denizcilik ve demiryolu sanayilerinde giderek artmaktadır [4]. Alüminyum alaşımları düşük yoğunlukları ve yüksek mukavemetleri ile bu malzemelerden bir tanesidir [5], [6]. Jang vd.…”

Section: Investigation Of Al 5754 Alloy In Warm Processing Conditions...unclassified

Investigation of Al 5754 Alloy in Warm Processing Conditions in Terms of Deep Drawability and Sheet Thickness Variation by Finite Element Method

ÇETİN

2023

Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım Ve Teknoloji

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Alüminyum alaşımlarının şekillendirilebilirliği için ılık işlem koşulları büyük önem arz etmektedir. Yeniden kristalleşme altı sıcaklıklarda mikro yapıda değişim olmadan şekillendirilebilirlik arttırılabilmektedir. Bu çalışmada, Al 5754-O alaşımının ılık sıcaklıklarda şekillendirilmesine etki eden sıcaklık, işlem parametresi olarak kullanılarak makro derin çekme işlemi sonlu elemanlar yöntemi kullanılarak sayısal olarak incelenmiştir. AA5754-O alaşımının derin çekile bilirliği 25°C’de tutulan zımba ile, 225 °C, 250 °C, 275°C ve 300°C’de kadar ısıtılmış kalıp koşullarında sac kalınlığı değişimi parametresi yoluyla araştırılmıştır. Analizlerde sıcaklık dağılımı, şekillendirme hızı ve baskı levhası basıncı parametrelerinin kap incelmesi üzerine etkisi analiz edilmiştir. Yapılan analizler değerlendirilirken kusursuz derin kap çekile bilirliğini sağlayan parametreler incelenmiş ve şekillendirme hızı ve baskı levhası basıncı parametrelerinin şekillendirilebilirliğe etkileri analiz edilmiştir.

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Determination of optimal loading profiles in hydromechanical deep drawing process using integrated adaptive finite element analysis and fuzzy control approach

Cited by 16 publications

References 11 publications

Design and Optimization of the Local Laser Treatment to Improve the Formability of Age Hardenable Aluminium Alloys

Design and Optimization of the Local Laser Treatment to Improve the Formability of Age Hardenable Aluminium Alloys

A state of the art review of hydroforming technology

Investigation of Al 5754 Alloy in Warm Processing Conditions in Terms of Deep Drawability and Sheet Thickness Variation by Finite Element Method

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