Incremental sheet forming
About: Incremental sheet forming is a(n) research topic. Over the lifetime, 877 publication(s) have been published within this topic receiving 13132 citation(s).
01 Jan 2005-CIRP Annals
Abstract: The use of computers in manufacturing has enabled the development of several new sheet metal forming processes, which are based upon older technologies. This paper describes modifications that have been made to traditional forming methods such as conventional spinning and shear forming, forming processes in which deformation is localized. Recent advances have enabled this localized deformation to be accurately controlled and studied. Current developments have been focused on forming asymmetric parts using CNC technology, without the need for costly dies. Asymmetric Incremental Sheet Forming has the potential to revolutionize sheet metal forming, making it accessible to all levels of manufacturing. This paper describes the genesis and current state-of-the-art of Asymmetric Incremental Sheet Forming.
20 Dec 2002-Journal of Materials Processing Technology
Abstract: The formability of sheet metal appears better in incremental forming than in conventional forming. In this study, the effect of process parameters—tool type, tool size, feed rate, friction at the interface between tool and sheet, plane-anisotropy of sheet—on the formability was investigated by experiments and FEM analyses. It was found that the formability is improved when a ball tool of a particular size is used with a small feed rate and a little friction. Due to the plane-anisotropy, the formability differs according to the direction of the tool movement.
01 Feb 2009-Journal of Materials Processing Technology
Abstract: The deformation mechanism of incremental sheet forming (ISF) is examined experimentally through forming specially prepared copper sheets. Strain distributions through the thickness of the sheets are measured for two configurations of ISF: two-point incremental forming (TPIF) and single-point incremental forming (SPIF), and a comparison is made to pressing. The measurements show that the deformation mechanisms of both SPIF and TPIF are stretching and shear in the plane perpendicular to the tool direction, with shear in the plane parallel to the tool direction. Strain components increase on successive laps, and the most significant component of strain is shear parallel to the tool direction. Increasing stretching and shear perpendicular to the tool direction account for differences between the sine law prediction and measured wall thickness for both SPIF and TPIF. The observed mechanisms of SPIF and TPIF differ from a mechanism of pure shear that has previously been assumed.
01 Jan 2007-CIRP Annals
Abstract: Single point incremental forming accuracy suffers from contradictory material requirements: while a low yield strength and low hardening coefficient are favourable in terms of limiting process forces and springback, they also result in excessive, unwanted plastic deformation in zones bordering processed areas Dynamic, localised heat input, for example through radiation of the tool contact area by means of a laser beam, allows to differentiate material properties in time and space Experimental results demonstrate that this process variant results in reduced process forces, improved dimensional accuracy and increased formability for a range of materials Initial results also indicate that residual stresses can be significantly reduced by means of the dynamic heating system that was developed
15 May 2005-Journal of Materials Processing Technology
Abstract: Incremental Forming processes have been introduced in the recent past as an alternative to the money consuming stamping technology, when small batches have to be manufactured. Anyway, they introduce some advantages in terms of flexibility and material formability but, also, some problems such as the dimensional accuracy decreasing. In this paper, a particular application is carried out taking into account the development of an innovative technique to produce a customised ankle support. In this way Incremental Forming process has been selected for the sheet profiling, exalting the role that this technology may play when single complex product has to be manufactured. The producing procedure finishes with a measure of the dimensional accuracy that shown a good result for the desired application.