Multistage Tool Path Optimisation of Single-Point Incremental Forming Process

Yan, Zhou; Hassanin, Hany; El-Sayed, Mahmoud Ahmed; Eldessouky, Hossam Mohamed; Djuansjah, J.R.P.; Alsaleh, Naser A.; Essa, Khamis; Ahmadein, Mahmoud Abdallah

Abstract

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.

Citation

YAN, Z., HASSANIN, H., EL-SAYED, M.A., ELDESSOUKY, H.M., DJUANSJAH, J.R.P., ALSALEH, N.A., ESSA, K. and AHMADEIN, M. 2021. Multistage tool path optimisation of single-point incremental forming process. Materials [online], 14(22), article number 6794. Available from: https://doi.org/10.3390/ma14226794

• Journal Article Type: Article
• Acceptance Date: Nov 4, 2021
• Online Publication Date: Nov 11, 2021
• Publication Date: Nov 30, 2021
• Deposit Date: Feb 13, 2025
• Publicly Available Date: Feb 20, 2025
• Journal: Materials
• Electronic ISSN: 1996-1944
• Publisher: MDPI
• Peer Reviewed: Peer Reviewed
• Volume: 14
• Issue: 22
• Article Number: 6794
• DOI: https://doi.org/10.3390/ma14226794
• Keywords: Single-point incremental forming (SPIF); Sheet metal; Forming; Incremental; FEA; Tool path; Optimisation
• Public URL: https://rgu-repository.worktribe.com/output/2702301