ADDITIVELY MANUFACTURED METAL TOOLING FOR CURE OPTIMISATION IN COMPOSITE MANUFACTUIRNG

Arjun Radhakrishnan, Max Valentine, Vincent Maes, Maria Valero, Elise Pegg, Vimal Dhokia, James Kratz

Research output: Chapter or section in a book/report/conference proceedingChapter in a published conference proceeding

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Abstract

The selection of tooling for composite manufacturing is a critical step in ensuring the quality of the resultant composite parts. The energy consumed during part manufacturing is used to evolve the composite properties but a substantial proportion of it is used to heat the tooling. Additive manufacturing (AM) offers a viable solution to reducing the tooling mass by generating complex tool architectures that can withstand the manufacturing process reduce mass and provide additional functionalities. A series of 16 lattice steel tools were additively manufactured and used to cure flat composite specimens. The thermal profile of the composite curing was monitored to characterise the thermal responsiveness of the tools. The curing of composites on equivalent solid monolithic tools of constant thickness was numerically simulated using a cure-coupled heat transfer model. The results indicate that AM tools with lattice architectures can achieve heating rates higher than 83% of the set rate while keeping the exothermic overshoot temperature below 30% of the setpoint, which its monolithic counterparts couldn’t achieve. Hence lattice structures enabled by AM can push the design space into regions previously unavailable to tooling design.
Original languageEnglish
Title of host publicationEuropean Conference on Composite Materials (ECCM20)
Subtitle of host publicationComposites Meet Sustainability
Place of PublicationLausanne, Switzerland
PublisherEuropean Conference on Composite Materials, ECCM
Pages1-8
Number of pages8
Volume2
ISBN (Print)9782970161400
Publication statusPublished - 20 Jun 2022
Event20th European Conference on Composite Materials: Composites Meet Sustainability - Lausanne, Switzerland
Duration: 26 Jun 202230 Jun 2022

Conference

Conference20th European Conference on Composite Materials
Abbreviated titleECCM20
Country/TerritorySwitzerland
CityLausanne
Period26/06/2230/06/22

Keywords

  • AM tooling
  • Lattice structures
  • Thermal light weighting
  • Heat transfer

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