Experimental process pressure analysis for model-based manufacturing of composites by resin transfer moulding

Fauster, Ewald; Thirunavukkarasu, J.; Hergan, Patrick; Schledjewski, Ralf

doi:10.1088/1757-899x/406/1/012060

Cited by 2 publications

(3 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This also explains the lower initial pressure in the experiments for higher initial mold gap heights (Figure 8, second and third row). Subsequently, when the preform is infiltrated, the compression resistance of the preform decreases due to lubrication with the resin, as was shown by previous studies [24,25]. The relative difference of the pressure values therefore decreases with ongoing infiltration and, furthermore, with increasing fluid pressure.…”

Section: Discussionsupporting

confidence: 57%

See 1 more Smart Citation

Experimental and numerical investigations of pressure-controlled resin transfer molding (PC-RTM)

Seuffert

Rosenberg

Kärger

et al. 2020

Advanced Manufacturing: Polymer & Composites Science

View full text Add to dashboard Cite

To increase the use of fiber reinforced lightweight structural components in the automotive industry, their manufacturing processes have to obtain demanding economic requirements. One possibility is to use Compression Resin Transfer Molding (CRTM), which is fast and can be highly automated. One disadvantage can be the very high cavity pressure during injection. To avoid this disadvantage, a pressure-controlled RTM (PC-RTM) process was developed. PC-RTM uses a variable mold gap height and an embedded pressure sensor to control the cavity pressure actively during mold filling. In this work, we investigate this process by experiments and simulations with varying initial mold gap and controlled cavity pressure. We show that PC-RTM is a viable manufacturing process with short cycle times and high robustness. Furthermore, the simulations are validated by comparison to the experiments and show the same process characteristics.

show abstract

Section: Discussionsupporting

confidence: 57%

“…The relative difference of the pressure values therefore decreases with ongoing infiltration and, furthermore, with increasing fluid pressure. To further develop the experiments and simulations, the compensation of the preform compression pressure as proposed by Fauster et al [25] is one possible option.…”

Section: Discussionmentioning

confidence: 99%

Experimental and numerical investigations of pressure-controlled resin transfer molding (PC-RTM)

Seuffert

Rosenberg

Kärger

et al. 2020

Advanced Manufacturing: Polymer & Composites Science

View full text Add to dashboard Cite

show abstract

“…All preforms from Table 1 were investigated with respect to their transverse compaction behavior. They were tested with an UTS 250 tensile test machine from Hegewald & Peschke Meß-und Pr€ uftechnik GmbH utilizing a preform compaction setup [55]. The compaction test setup allowed accurate control of displacement between the two acting faces.…”

Section: Compaction Behaviormentioning

confidence: 99%

Influence of test fluids on the permeability of epoxy powder bindered non-crimp fabrics

Tonejc

Ebner

Fauster

et al. 2019

Advanced Manufacturing: Polymer & Composites Science

View full text Add to dashboard Cite

Binder applications have found their place in liquid composite molding processes, as they simplify preprocessing steps such as preforming and subsequent handling. Moreover, binders can modify mechanical behavior of finished fiber reinforced plastic parts. Besides the obvious potentials, topics such as the impregnation behavior become more complicated due to binders. The present paper addresses the issue of estimating permeability values of epoxy powder bindered non-crimp fabrics, after considering different test fluids and their behavior under standard laboratory conditions as well as manufacturing-oriented conditions. Test fluid properties, especially surface energy as well as viscosity development with respect to temperature were provided, thereby highlighting a more complete picture of the flow situation during resin transfer molding processes. In contrary to former scientific studies, the influence of test fluids seems to have more influence when investigating Bindered Preforms.

show abstract

Experimental process pressure analysis for model-based manufacturing of composites by resin transfer moulding

Cited by 2 publications

References 12 publications

Experimental and numerical investigations of pressure-controlled resin transfer molding (PC-RTM)

Experimental and numerical investigations of pressure-controlled resin transfer molding (PC-RTM)

Influence of test fluids on the permeability of epoxy powder bindered non-crimp fabrics

Contact Info

Product

Resources

About