Numerical simulation of electric hot incremental sheet forming of 1050 aluminum with and without preheating

Pacheco, Philipe Augusto de Paula; Silveira, Márcio Eduardo

doi:10.1007/s00170-017-0879-8

Cited by 21 publications

(6 citation statements)

References 14 publications

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“…Heating leads to lower forces and better formability but decreases the geometric accuracy caused by contraction; preheating the blank before forming allows deviations to be reduced by about 5%, which was proven in a numerical simulation presented by Pacheco and Silveira [233]. In further study [234], an investigation of the prediction of heat distribution using FEM analysis has been proposed using different variables (variants with/without convection and plastic strain) and shows a good agreement with the analytical model developed by Bejan et al [235].…”

Section: Electrically Assisted Isfmentioning

confidence: 87%

Recent Developments and Future Challenges in Incremental Sheet Forming of Aluminium and Aluminium Alloy Sheets

Trzepieciński

Najm

Oleksik

et al. 2022

Metals

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Due to a favourable strength-to-density ratio, aluminium and its alloys are increasingly used in the automotive, aviation and space industries for the fabrication of skins and other structural elements. This article explores the opportunities for and limitations of using Single- and Two Point Incremental Sheet Forming techniques to form sheets from aluminium and its alloys. Incremental Sheet Forming (ISF) methods are designed to increase the efficiency of processing in low- and medium-batch production because (i) it does not require the production of a matrix and (ii) the forming time is much higher than in conventional methods of sheet metal forming. The tool in the form of a rotating mandrel gradually sinks into the sheet, thus leading to an increase in the degree of deformation of the material. This article provides an overview of the published results of research on the influence of the parameters of the ISF process (feed rate, tool rotational speed, step size), tool path strategy, friction conditions and process temperature on the formability and surface quality of the workpieces. This study summarises the latest development trends in experimental research on, and computer simulation using, the finite element method of ISF processes conducted in cold forming conditions and at elevated temperature. Possible directions for further research are also identified.

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Section: Electrically Assisted Isfmentioning

confidence: 87%

Recent Developments and Future Challenges in Incremental Sheet Forming of Aluminium and Aluminium Alloy Sheets

Trzepieciński

Najm

Oleksik

et al. 2022

Metals

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“…With the assistance of RADIOSS software, numerical simulation was performed. The results were presented a deterioration in the force during electric hot incremental sheet forming compared to the electric hot incremental sheet forming [47].…”

Section: Aluminum Alloy Behavior During Incremental Formingmentioning

confidence: 97%

Aluminum Alloys Behavior during Forming

Ramulu¹

2020

Aluminium Alloys and Composites

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Industrial revolution toward weight reduction and fuel efficiency of the automotive and aerospace vehicles is the major concern to replace heavy metals with light weight metals without affecting much strength. For this, aluminum alloys are the major contributors to those industries. Moreover, aluminum alloys are majorly categorized as 1xxx, 2xxx, 3xxx, 4xxx, 5xxx, 6xxx, 7xxx, and 8xxx based on major alloying elements. Among all, 2xxx, 5xxx, 6xxx, and 7xxx are having majority of applications in the abovementioned industries. For manufacturing any engineering deformable components, forming characteristics are must. Forming behavior of aluminum alloys has been evaluated through different processes including deep drawing, stretching, incremental forming, bending, hydro forming etc., under different process conditions (cold, warm, and hot conditions) and process parameters. Each process has its own process feasibility to evaluate the formability without any forming defects in products. The present chapter discusses a few important processes and their parameter effect on the aluminum alloys through the experimentations and simulation works.

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“…Gupta and Jeswiet [172,173] observed that frictional heating of an AA5754-H32 sheet during SPIF was significantly influenced by the geometry to be formed and the lubrication conditions at the tool-sheet interface. Pacheco and Silveira [174] achieved a reduction of forming forces in electric hot incremental forming of an AA1050 sheet with preheating compared to that without preheating. Grimm and Ragai [175] obtained improved formability and surface finish in electrically-assisted incremental forming of titanium sheet by applying liquid metal lubrication.…”

Section: Tool Assisted Heatingmentioning

confidence: 99%

“…Tool geometry and tool path Artificial neural network Design of experiments and RSM Friction and lubricants Process parameter optimisation Electro-assisted Joule heating Air-assisted heating Formability is higher for flat tool geometry and climb tool path [147,149,154] Modeling and prediction of formability and process parameters [160,163] Parametric study and optimisation in ISF [10,159,164] Surface finish depends on friction and lubrication conditions [159,167] Optimal parameters for maximum formability [161,163,164] Higher productivity and formability with less forming force [42,48,61,[167][168][169][170][171][172][173][174][175][176] Homogeneous global temperature, orange peel effect [177][178][179][180][181][182][183]…”

Section: Parametric Studymentioning

confidence: 99%

Emerging Trends in Single Point Incremental Sheet Forming of Lightweight Metals

Trzepieciński

Oleksik

Pepelnjak

et al. 2021

Metals

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Lightweight materials, such as titanium alloys, magnesium alloys, and aluminium alloys, are characterised by unusual combinations of high strength, corrosion resistance, and low weight. However, some of the grades of these alloys exhibit poor formability at room temperature, which limits their application in sheet metal-forming processes. Lightweight materials are used extensively in the automobile and aerospace industries, leading to increasing demands for advanced forming technologies. This article presents a brief overview of state-of-the-art methods of incremental sheet forming (ISF) for lightweight materials with a special emphasis on the research published in 2015–2021. First, a review of the incremental forming method is provided. Next, the effect of the process conditions (i.e., forming tool, forming path, forming parameters) on the surface finish of drawpieces, geometric accuracy, and process formability of the sheet metals in conventional ISF and thermally-assisted ISF variants are considered. Special attention is given to a review of the effects of contact conditions between the tool and sheet metal on material deformation. The previous publications related to emerging incremental forming technologies, i.e., laser-assisted ISF, water jet ISF, electrically-assisted ISF and ultrasonic-assisted ISF, are also reviewed. The paper seeks to guide and inspire researchers by identifying the current development trends of the valuable contributions made in the field of SPIF of lightweight metallic materials.

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Numerical simulation of electric hot incremental sheet forming of 1050 aluminum with and without preheating

Cited by 21 publications

References 14 publications

Recent Developments and Future Challenges in Incremental Sheet Forming of Aluminium and Aluminium Alloy Sheets

Recent Developments and Future Challenges in Incremental Sheet Forming of Aluminium and Aluminium Alloy Sheets

Aluminum Alloys Behavior during Forming

Emerging Trends in Single Point Incremental Sheet Forming of Lightweight Metals

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