Effective forming strategy for double-sided incremental forming considering in-plane curvature and tool direction

Moser, Newell; Zhang, Zixuan; Ren, Huaqing; Zhang, Huan; Shi, Yi; Ndip-Agbor, Ebot; Lü, Bin; Chen, Jun; Ehmann, Kornel F.; Cao, Jian

doi:10.1016/j.cirp.2016.04.131

Cited by 35 publications

(18 citation statements)

References 10 publications

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“…Maximum deviation to the ideal profile can be controlled under 0.4 mm when the correct forming sequence and strategy were applied. Moser et al [57] developed another analogous method corresponding to the in-plane curvature effect. It was observed that the region of loss of contact was affected by the tool motion direction (Fig.…”

Section: Feature-based Toolpath Strategymentioning

confidence: 99%

Double-Sided Incremental Forming: A Review

Peng

Becker

2019

Journal of Manufacturing Science and Engineering

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Incremental sheet-forming (ISF) processes have been developed rapidly in the past two decades. Its high flexibility and easy operability have a significant appeal for industrial applications, and substantial progress has been made in fundamental understanding and demonstration of practical implementation. However, there are a number of obstacles including achievable accuracy and instability in material deformation, which are considered as a main contributing factor for preventing the ISF process to be widely used in industry. As a variant of the general ISF process, double-sided incremental forming (DSIF) uses an additional supporting tool in the opposite side of the workpiece, maintains the flexibility, and at the same time improves the material deformation stability and reduces material thinning. In recent years, there has been increased research interest in looking into DSIF-specific material deformation mechanisms and investigation. This paper aims to provide a technical review of the DSIF process as benchmarked with single-point incremental forming (SPIF). It starts with a brief overview of the current state of the art of both SPIF and DSIF. This is followed by a comparative study between SPIF and DSIF with the key research challenges identified. This leads to a recommendation of future directions for DSIF focused research.

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Section: Feature-based Toolpath Strategymentioning

confidence: 99%

Double-Sided Incremental Forming: A Review

Peng

Becker

2019

Journal of Manufacturing Science and Engineering

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“…For example, the Two Point Incremental Forming (TPIF) was proposed in which a partial die is utilized to support the material and reduce the undesired global bending and geometric deviation [129]. Based on the TPIF, Double Sided Incremental Forming (DSIF) [145] was proposed to maintain the benefits of the local support while avoiding the overhead costs for the specific die by using a second tool on the opposite side of the metal sheet [128], as shown in Fig. 6.…”

Section: Classification Of Flexibility In Metal Formingmentioning

confidence: 99%

Flexibility in metal forming

et al. 2018

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Flexibility in metal forming is needed more than ever before due to rapidly changing customer demands. It paves the way for a better control of uncertainties in development and application of metal forming processes. Although flexibility has been pursued from various viewpoints in terms of machines, material, process, working environment and properties, etc., a thorough study of the concept was undertaken in order to with problems of manufacturing competiveness and tackle new challenges of manufacturing surroundings. Therefore, in this paper, flexibility in forming is reviewed from the viewpoints of process, material, manufacturing environment, new process combinations and machine-systemsoftware interactions.

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“…DSIF employs two moving tools acting as a forming tool and a supporting tool to increase flexibility and geometric accuracy. Malhotra et al [ 19 ] and Moser et al [ 20 ] studied forming strategies in DSIF to increase formability and geometric accuracy. Praveen et al [ 21 ] compensated the tool paths in DSIF using an analytic model to enhance the geometric accuracy.…”

Section: Introductionmentioning

confidence: 99%

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

Jung

Chung

et al. 2020

Materials

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Incremental sheet metal forming can manufacture various sheet metal products without a dedicated punch and die set. In this study, we developed a two-stage incremental forming process to decrease shape errors in the conventional incremental forming process. The forming process was classified into the first single point incremental forming (1st SPIF) process for forming a product and the counter single point incremental forming (counter SPIF) process to decrease shape error. The counter SPIF gives bending deformation in the opposite direction. Furthermore, the counter SPIF compensates for shape errors, such as section deflection, skirt spring-back, final forming height, and round. The tool path of the counter SPIF has been optimized through a relatively simple optimization method by modifying the tool path of the previous step. The tool path of the 1st SPIF depends on the geometry of the product. An experiment was performed to form a circular cup shape to verify the proposed tool path of the 1st and counter SPIF. The result confirmed that the shape error decreased when compared to the conventional SPIF. For the application, the ship-hull geometry was adopted. Experimental results demonstrated the feasibility of the two-stage incremental forming process.

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Effective forming strategy for double-sided incremental forming considering in-plane curvature and tool direction

Cited by 35 publications

References 10 publications

Double-Sided Incremental Forming: A Review

Double-Sided Incremental Forming: A Review

Flexibility in metal forming

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

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