Study on the Achievable Accuracy in Single Point Incremental Forming

Duflou, Joost R.; Lauwers, Bert; Verbert, Johan

doi:10.1007/3-540-69845-0_15

Cited by 31 publications

(20 citation statements)

References 8 publications

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“…Therefore, springback affects the dimensional accuracy of the finished part. A lot of researchers investigated this topic and they found many solutions to improve the dimensional accuracy of ISF parts: -it is indicated to use a backing plate (Fig.1) to support the sheet flange [4,35]; -using a smaller tool diameter and incremental step depth, the springback can be reduced, as Ambrogio et al [36] and Oleksik et al [33] demonstrated; -Duflou et al [35] concluded that using a multi-pass toolpath strategy leeds to a better accuracy, minimising the sprigback effect. On the other hand Junchao et al [37] find that increasing the number of stages the springback becomes higher using a single stage strategy, because of the springback accumulation during each forming stage;…”

Section: Springback In Isfmentioning

confidence: 99%

Incremental deformation: A literature review

Nasulea

Oancea

2017

MATEC Web Conf.

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Abstract. Nowadays the customer requirements are in permanent changing and according with them the tendencies in the modern industry is to implement flexible manufacturing processes. In the last decades, metal forming gained attention of the researchers and considerable changes has occurred. Because for a small number of parts, the conventional metal forming processes are expensive and time-consuming in terms of designing and manufacturing preparation, the manufacturers and researchers became interested in flexible processes. One of the most investigated flexible processes in metal forming is incremental sheet forming (ISF). ISF is an advanced flexible manufacturing process which allows to manufacture complex 3D products without expensive dedicated tools. In most of the cases it is needed for an ISF process the following: a simple tool, a fixing device for sheet metal blank and a universal CNC machine. Using this process it can be manufactured axis-symmetric parts, usually using a CNC lathe but also complex asymmetrical parts using CNC milling machines, robots or dedicated equipment. This paper aim to present the current status of incremental sheet forming technologies in terms of process parameters and their influences, wall thickness distribution, springback effect, formability, surface quality and the current main research directions.

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Section: Springback In Isfmentioning

confidence: 99%

Incremental deformation: A literature review

Nasulea

Oancea

2017

MATEC Web Conf.

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“…This technique allows a relatively fast and cheap production of small series of sheet metal parts [1] [2]. In addition to the achievable accuracy [3], one of the main drawbacks of the incremental forming process is the process limits. For every material with a given thickness a maximum forming angle α (see Figure 1) can be determined by means of a simple cone forming test as described in [1].…”

Section: Introductionmentioning

confidence: 99%

Process window enhancement for single point incremental forming through multi-step toolpaths

et al. 2008

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Single point incremental forming suffers from process window limitations which are strongly determined by the maximum achievable forming angle. Forming consecutive, intermediate shapes can contribute to a significantly enlarged process window by allowing steeper maximum wall angles for a range of part geometries. In this paper an experimentally explored multi-step toolpath strategy is reported and the resulting part geometries compared to simulation output. Sheet thicknesses and strains achieved with these multi-step toolpaths were verified and contribute to better understanding of the material relocation mechanism underlying the enlarged process window.

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“…This technique allows a fast and cheap production of customized or small series of sheet metal parts [1]. Besides the obtainable accuracy [2], one of the main challenges of the process are the process limits. Many workpiece geometries cannot be manufactured due to the fact that the maximum wall angle that can be formed is limited for a certain sheet material and thickness to a given angle (see Figure 1) [3].…”

Section: Introductionmentioning

confidence: 99%