Effects of three parameters on forming force of the single point incremental forming process

Torsakul, Sirichai; Kuptasthien, Natha

doi:10.1007/s12206-019-0528-2

Cited by 15 publications

(6 citation statements)

References 14 publications

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“…The increase of the friction coefficient determined on the basis of Equation (1) would enhance the SPIF, the forming stability, and the formability [248,249].…”

Section: Determination Of Cofmentioning

confidence: 99%

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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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“…The increase of the friction coefficient determined on the basis of Equation (1) would enhance the SPIF, the forming stability, and the formability [248,249].…”

Section: Determination Of Cofmentioning

confidence: 99%

“…The second assumption was that the values of the friction coefficient vary along the drawpieces formed. The COF was calculated by the following relation [247]: The increase of the friction coefficient determined on the basis of Equation ( 1) would enhance the SPIF, the forming stability, and the formability [248,249].…”

Section: Determination Of Cofmentioning

confidence: 99%

Emerging Trends in Single Point Incremental Sheet Forming of Lightweight Metals

Trzepieciński

Oleksik

Pepelnjak

et al. 2021

Metals

View full text Add to dashboard Cite

show abstract

“…Specifically, the forming angle is reported to be a key factor to achieve good geometry accuracy of the SPIFed component. Studies show that the larger the forming angle, the smaller the forming force [19][20][21]. This is because the increase in angle can reduce the stiffness of the sheet.…”

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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“…Materials with greater yield strength [18,19] also require greater force for the deformation to occur. However, as tool rotation increases [20], and with it the process temperature [21], there is a decrease in the required force. The feed rate on the other hand presents little influence over the forces applied to the ISF process [22].…”

Section: Introductionmentioning

confidence: 99%

Predicting maximum force in SPIF for different materials

et al. 2022

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Knowing the importance of predicting acting forces during the formation process, our research has conducted 27 Single Point Incremental Forming (SPIF) experiments in hyperboloid format, followed by Finite Element Method (FEM) simulations and regression equations were determined to estimate the maximum axial force in the process. ANOVA analysis of variance was used to determine the significance of material parameters in the maximum axial force response. A multiple linear regression model was constructed to estimate the maximum axial force in the SPIF process. After the experiments, we were able to identify that the maximum axial force increases according to an increase in tool radius, sheet initial thickness, and strength coefficient values, as well as according to the decrease in the strain-hardening exponent. The FEM simulations are in agreement with the experimental values found, and the linear regression model has proven to be efficient to describe results, with R2 of 98.85% and a maximum percentage error of 11.5%.

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Effects of three parameters on forming force of the single point incremental forming process

Cited by 15 publications

References 14 publications

Emerging Trends in Single Point Incremental Sheet Forming of Lightweight Metals

Emerging Trends in Single Point Incremental Sheet Forming of Lightweight Metals

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

Predicting maximum force in SPIF for different materials

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