Formability of paperboard during deep-drawing with local steam application

Franke, Wilken; Stein, Peter; Dörsam, Sven; Groche, Peter

doi:10.1063/1.5034948

Cited by 3 publications

(6 citation statements)

References 8 publications

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“…The strength in MD is significantly higher than in CD, while the elongations at break are significantly higher in CD than in MD. Franke et al (2018) determined in tensile tests elongations at break values 3.16-times higher in CD than in MD at 5 % moisture content and 2.769times higher at 20 %. To understand the mechanism a closer look to the fiber network is required, as depicted in Fig.…”

Section: Anisotropic Forming Behaviormentioning

confidence: 89%

“…In addition, a heater will be added to the counter pressure assembly to improve the material behavior towards better formability as described in the literature and to prevent condensation of steam. This should enable the advantages of a steam application during the incremental forming of paperboard as determined by Franke et al (2018).…”

Section: Discussionmentioning

confidence: 99%

“…These studies focused on understanding and improving the forming behavior of paperboard. The results show that the forming limits as well as the component quality of paperboard can be improved by: -An elevated moisture content (Scherer 1935;Rhim 2010), -Enhanced tool temperatures (Tanninen et al 2014;Wallmaier et al 2016), -A sufficient calibration time (Tanninen 2015), -A trajectory blank-holder force (Hauptmann et al 2016a;Müller et al 2017), -An in-process steam application (Franke et al 2018), -A superimposed counter pressure (Groche and Huttel 2016), and -A superimposed ultrasonic vibration (Löwe et al 2017a).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Forming behavior of paperboard in single point incremental forming

Stein

Franke

Elling

et al. 2019

BioRes

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An increased demand for sustainable materials has led to intensive research in the field of three-dimensional paperboard forming. To date, this work has focused on forming processes with shape-giving tools. However, individual shapes are often required, especially for large-format products. Incremental forming can be used in metal processing for small batches. In this article, the technology of incremental forming is transferred to paperboard. The results showed that elevated moisture content and a superimposed counter pressure significantly increased the forming limits. In addition, the use of polymer layers increased the shape accuracy. An extended understanding of the underlying mechanisms was achieved by analyzing the forming behavior. In uniaxial and biaxial characterization tests the influence of the moisture content on the forming behavior was investigated with conditions relevant for incremental forming. It was found that the bulge test is suitable to determine the most suitable moisture content regarding the forming limits and the spring back behavior in incremental forming. In addition, it was observed that the bearable elongations during the incremental forming of paperboard are significantly higher than in the established characterization tests. The reason for this is a compression of the fiber network during forming.

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Section: Anisotropic Forming Behaviormentioning

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Forming behavior of paperboard in single point incremental forming

Stein

Franke

Elling

et al. 2019

BioRes

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show abstract

“…The application of steam during the deep drawing of paperboard has also shown promising results with respect to the forming limits. 15 Several works have shown that using gelatin as an additive in fibre-material manufacturing can improve the extensibility and thermal formability of fibre-based materials when added in the wet stage during the paper or paperboard manufacturing process. [16][17][18] In packaging applications, fibre-based materials are usually coated with a polymer layer to achieve adequate barrier properties, for example, against water, grease or oxygen.…”

Section: Introductionmentioning

confidence: 99%

“…Early works by Scherer 14 suggested that using soap water or other similar lubricants could improve the forming result. The application of steam during the deep drawing of paperboard has also shown promising results with respect to the forming limits 15 . Several works have shown that using gelatin as an additive in fibre‐material manufacturing can improve the extensibility and thermal formability of fibre‐based materials when added in the wet stage during the paper or paperboard manufacturing process 16–18 …”

Section: Introductionmentioning

confidence: 99%

The effects of pretreatment and coating on the formability of extrusion‐coated multilayer paperboard–plastic composites

et al. 2020

Self Cite

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Sustainable materials like paperboard can substitute for crude oil-based polymers in packaging applications and, by doing that, reduce the negative environmental impacts caused by plastic waste. For a broader application in the packaging industry, the forming of paperboard needs to overcome its limited forming behaviour and barrier properties. The presented work aims to influence the forming behaviour of uncoated and polyethylene terephthalate (PET)-coated paperboard with additives like water, gelatin and soap. Furthermore, the differences in the mechanical behaviour of coated and uncoated materials are investigated. For the studies, tensile, bulge and forming tests were combined with different optical measurement methods. The investigations showed that the overall forming behaviour is affected by the mentioned additives and can be improved. Additionally, the interaction of the coating and substrate paper is investigated under different load conditions.

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Role of blank moisturisation in press forming of paperboard

Berthold,

Niini,

Tanninen

et al. 2024

BioRes

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To investigate the influence of blank moisture on the forming of paperboard, press forming experiments were performed with fixed blank setup and sliding blank setup to produce paperboard trays. The trays were rated by their forming height. Different moisturisation procedures were established to achieve one or double-sided surface moisturisation or homogenous moisture distributions in the blanks. Additionally, basic influences of moisture to paper-to-metal friction and tensile properties of the paperboard were measured. Surface moisturisation increased the paper-to metal friction and therefore limited the achievable forming heights in sliding blank press forming. The elongation at break of paperboard increased with increased sample moisture content. In the fixed blank press forming test this increase was not apparent in the data.

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Formability of paperboard during deep-drawing with local steam application

Cited by 3 publications

References 8 publications

Forming behavior of paperboard in single point incremental forming

Forming behavior of paperboard in single point incremental forming

The effects of pretreatment and coating on the formability of extrusion‐coated multilayer paperboard–plastic composites

Role of blank moisturisation in press forming of paperboard

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