The incremental sheet forming; technology, modeling and formability: A brief review

Said, Lotfi Ben

doi:10.1177/09544089221093306

Cited by 16 publications

(7 citation statements)

References 118 publications

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“…Thus, SPIF has greater potential in the aspects of rapid prototype manufacturing as well as small batch production [1,2]. SPIF can fulfil the current requirements for flexible, feasible, sustainable, and economic manufacturing technology for personalized sheet metal parts, small-batch prototypes, and customized products without the use of expensive specialized machines or equipment [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

The Formability of Perforated TA1 Sheet in Single Point Incremental Forming

Wang

Feng

2023

Materials

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In light of the analysis on the single point incremental forming (SPIF) principle of perforated titanium sheet and the corresponding peculiarities during the forming process, it is found that the wall angle constitutes the pivotal parameter influencing the SPIF quality of the perforated titanium sheet, and this is also the key evaluation index to test the application of SPIF technology on a complex surface. This method for integrating the experiment and the finite element modelling was utilized in this paper to study the wall angle range and fracture mechanism of Grade 1 commercially-pure α titanium (TA1) perforated plate, plus the effect of different wall angles on the quality of perforated titanium sheet components. The forming limiting angle, fracture, and deformation mechanism of the perforated TA1 sheet in the incremental forming were obtained. In accordance with the results, the forming limit is related to the forming wall angle. When the limiting angle of the perforated TA1 sheet in the incremental forming is around 60 degrees, the fracture mode is the ductile fracture. Parts with a changing wall angle have a larger wall angle than parts with a constant angle. The thickness of the perforated plate formed part does not fully satisfy the sine law, and the thickness of the thinnest point of the perforated titanium mesh with different wall angles is lower than that predicted by the sine law; therefore, the actual forming limit angle of the perforated titanium sheet should be less than that predicted by a theoretical calculation. With the increase in the forming wall angle, the effective strain, the thinning rate, and the forming force of the perforated TA1 titanium sheet all increase, while the geometric error decreases. When the wall angle of the perforated TA1 titanium sheet is 45 degrees, the parts with a uniform thickness distribution and good geometric accuracy can be obtained.

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Section: Introductionmentioning

confidence: 99%

The Formability of Perforated TA1 Sheet in Single Point Incremental Forming

Wang

Feng

2023

Materials

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“…Thus, it was found that by moving a punch along a programmed trajectory, parts of complex configuration could be obtained. A presentation of the process as well as the technological variants of formability in SPIF has been provided by Ben Said [ 1 ]. A study on the influence of the process parameters in SPIF is provided by Magdum and Chinnaiyan [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Minimizing the Main Strains and Thickness Reduction in the Single Point Incremental Forming Process of Polyamide and High-Density Polyethylene Sheets

et al. 2023

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Polymeric materials are increasingly used in the automotive industry, aeronautics, medical device industry, etc. due to their advantage of providing good mechanical strength at low weight. The incremental forming process for polymeric materials is gaining increasing importance because of the advantages it offers: relatively complex parts can be produced at minimum cost without the need for complex and expensive dies. Knowing the main strains and especially the thickness reduction is particularly important as it directly contributes to the mechanical strength of the processed parts, including in operation. For the design of experiments, the Taguchi method was chosen, with an L18 orthogonal array obtained by varying the material on two levels (polyamide and polyethylene) and the other three parameters on three levels: punch diameter (6 mm, 8 mm and 10 mm), wall angle (50°, 55° and 60°) and step down (0.5 mm, 0.75 mm and 1 mm). The output parameters were strain in the x direction, strain in the y direction, major strain, minor strain, shear angle and thickness reduction. Two analyses were conducted: signal-to-noise ratio analysis with the smaller-is-better condition and analysis of variance. The optimum values for which the thickness was reduced were the following: wall angle of 50°, punch diameter of 10 mm and step down of 0.75 mm.

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“…Compared with traditional forming processes, SPIF deforms the material under severe plastic strain as a result of local deformation and throughthickness shearing. SPIF is particularly suitable for the rapid making of prototype products and components in small quantities with high demand on geometry accuracy [1][2][3][4][5]. For example, recent reports on the making of Al-Cu alloy truncated pyramid component by SPIF have attracted a lot attention due to its advantages on improving geometry accuracy [6].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Forming Angle on the Geometry Accuracy and Mechanical Properties of Al-Li Alloy Truncated Pyramids by Single Point Incremental Forming

et al. 2023

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In this study, single point incremental forming (SPIF) of Al-Li alloy sheets under different forming angles are studied via both experimental methods and numerical simulations. The effect of different forming angle on the geometric accuracy of SPIFed Al-Li component is studied. The simulation results show that the higher the forming angle, the lower the stress at the corner, leading to better geometrical accuracy, which is also experimentally validated. It is also found that high forming angle leads to better mechanical properties of the SPIFed Al-Li alloy component.

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The incremental sheet forming; technology, modeling and formability: A brief review

Cited by 16 publications

References 118 publications

The Formability of Perforated TA1 Sheet in Single Point Incremental Forming

The Formability of Perforated TA1 Sheet in Single Point Incremental Forming

Minimizing the Main Strains and Thickness Reduction in the Single Point Incremental Forming Process of Polyamide and High-Density Polyethylene Sheets

The Effects of Forming Angle on the Geometry Accuracy and Mechanical Properties of Al-Li Alloy Truncated Pyramids by Single Point Incremental Forming

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