ADDITIVELY MANUFACTURED METAL TOOLING FOR CURE OPTIMISATION IN COMPOSITE MANUFACTUIRNG

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

ADDITIVELY MANUFACTURED METAL TOOLING FOR CURE OPTIMISATION IN COMPOSITE MANUFACTUIRNG

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

University of Bristol

Research output: Chapter or section in a book/report/conference proceeding › Chapter 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 language	English
Title of host publication	European Conference on Composite Materials (ECCM20)
Subtitle of host publication	Composites Meet Sustainability
Place of Publication	Lausanne, Switzerland
Publisher	European Conference on Composite Materials, ECCM
Pages	1-8
Number of pages	8
Volume	2
ISBN (Print)	9782970161400
Publication status	Published - 20 Jun 2022
Event	20th European Conference on Composite Materials: Composites Meet Sustainability - Lausanne, Switzerland Duration: 26 Jun 2022 → 30 Jun 2022

Conference

Conference	20th European Conference on Composite Materials
Abbreviated title	ECCM20
Country/Territory	Switzerland
City	Lausanne
Period	26/06/22 → 30/06/22

Keywords

AM tooling
Lattice structures
Thermal light weighting
Heat transfer

Access to Document

62098_Fullpaper_Radhakrishnan_ArjunFinal published version, 3.49 MBLicence: CC BY-NC

Additive Manufacture of Cure Tools
Dhokia, V. (PI), Pegg, E. (CoI) & Valentine, M. (Researcher)
Engineering and Physical Sciences Research Council
1/02/22 → 30/09/22
Project: Research council

Cite this

ADDITIVELY MANUFACTURED METAL TOOLING FOR CURE OPTIMISATION IN COMPOSITE MANUFACTUIRNG. / Radhakrishnan, Arjun; Valentine, Max; Maes, Vincent et al.
European Conference on Composite Materials (ECCM20): Composites Meet Sustainability. Vol. 2 Lausanne, Switzerland: European Conference on Composite Materials, ECCM, 2022. p. 1-8.

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

Radhakrishnan, A, Valentine, M, Maes, V, Valero, M, Pegg, E , Dhokia, V & Kratz, J 2022, ADDITIVELY MANUFACTURED METAL TOOLING FOR CURE OPTIMISATION IN COMPOSITE MANUFACTUIRNG. in European Conference on Composite Materials (ECCM20): Composites Meet Sustainability. vol. 2, European Conference on Composite Materials, ECCM, Lausanne, Switzerland, pp. 1-8, 20th European Conference on Composite Materials, Lausanne, Switzerland, 26/06/22.

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AB - 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.

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ER -

ADDITIVELY MANUFACTURED METAL TOOLING FOR CURE OPTIMISATION IN COMPOSITE MANUFACTUIRNG

Abstract

Conference

Keywords

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Projects

Additive Manufacture of Cure Tools

Cite this