Tool Path Design of the Counter Single Point Incremental Forming Process to Decrease Shape Error

Jung, Kyu-Seok; Yu, Jae-Hyeong; Chung, Wan‐Jin; Lee, Chang-Whan

doi:10.3390/ma13214719

Cited by 17 publications

(14 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The tool path of the second stage was developed on the basis of the first stage, while the first stage tool path was based on the part geometry. Jung et al [156] used SPIF and counter SPIF as the first and second stages of the incremental forming process, which had been employed to decrease the springback of formed components and other shaping errors in the 5052 aluminium alloy. The tool path of the second stage was developed based on the first stage, while the first stage tool path was based on part geometry.…”

Section: Toolpath Compensationmentioning

confidence: 99%

“…The methodology developed mainly consists of the following three elements: finding the critical key that affects the complexity of the geometry, offline simulation to predict springback and modifying the tool path in situ during the forming process (Figure 12). Jung et al [156] used SPIF and counter SPIF as the first and second stages of the incremental forming process, which had been employed to decrease the springback of formed components and other shaping errors in the 5052 aluminium alloy. The tool path of the second stage was developed based on the first stage, while the first stage tool path was based on part geometry.…”

Section: Toolpath Compensationmentioning

confidence: 99%

See 1 more Smart Citation

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

Trzepieciński

Najm

Oleksik

et al. 2022

Metals

View full text Add to dashboard Cite

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.

show abstract

Section: Toolpath Compensationmentioning

confidence: 99%

Section: Toolpath Compensationmentioning

confidence: 99%

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

Trzepieciński

Najm

Oleksik

et al. 2022

Metals

View full text Add to dashboard Cite

show abstract

“…The toolpath design for the counter SPIF of aluminium Al5052 with 1 mm thickness was studied by Jung et al [187]. They analysed two shapes: a frustum of cone shape and a ship-hull shape.…”

Section: Toolpath and Toolpath Strategiesmentioning

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

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.

show abstract

“…In this technique, two forming tools simultaneously work on the two sides of the sheet metal. The DSIF was found effective at improving geometric accuracy [28].…”

Section: Introductionmentioning

confidence: 95%

Multistage Tool Path Optimisation of Single-Point Incremental Forming Process

et al. 2021

View full text Add to dashboard Cite

Single-point incremental forming (SPIF) is a flexible technology that can form a wide range of sheet metal products without the need for using punch and die sets. As a relatively cheap and die-less process, this technology is preferable for small and medium customised production. However, the SPIF technology has drawbacks, such as the geometrical inaccuracy and the thickness uniformity of the shaped part. This research aims to optimise the formed part geometric accuracy and reduce the processing time of a two-stage forming strategy of SPIF. Finite element analysis (FEA) was initially used and validated using experimental literature data. Furthermore, the design of experiments (DoE) statistical approach was used to optimise the proposed two-stage SPIF technique. The mass scaling technique was applied during the finite element analysis to minimise the computational time. The results showed that the step size during forming stage two significantly affected the geometrical accuracy of the part, whereas the forming depth during stage one was insignificant to the part quality. It was also revealed that the geometrical improvement had taken place along the base and the wall regions. However, the areas near the clamp system showed minor improvements. The optimised two-stage strategy successfully decreased both the geometrical inaccuracy and processing time. After optimisation, the average values of the geometrical deviation and forming time were reduced by 25% and 55.56%, respectively.

show abstract

Tool Path Design of the Counter Single Point Incremental Forming Process to Decrease Shape Error

Cited by 17 publications

References 28 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

Emerging Trends in Single Point Incremental Sheet Forming of Lightweight Metals

Multistage Tool Path Optimisation of Single-Point Incremental Forming Process

Contact Info

Product

Resources

About