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Advanced Manufacturing Processes in the Marine Industry
Stephen Leonard-Williams
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• Introduction to Composite Integration
• Current ‘Closed Mould’ techniques
• Resin Transfer Moulding (RTM) in the marine industry
• Resin Infusion (RI) in the marine industry
• Future developments……….
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• Founded in 2002 in South West UK
• Specialist in ‘closed mould’ technology
• Manufacturer of award winning Ciject range of equipment
• Supplying Marine, Wind, Aerospace, Automotive, civil and Defence Sectors
• World wide distribution in more that 20 countries
• ISO 9001 accredited
• Driving process and technology development.
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Equipment for Resin Transfer Moulding (RTM)
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Equipment for Resin Infusion (RI)
Atech Composites Co., Ltd.Horizon Group, Taiwan
110ft Hull-Infuse with all Structural Members in a Single Shot
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Equipment for Aerospace Applications
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Ancillary Equipment and Materials
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Training
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Commercial R&D
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Why consider a ‘closed mould’ process?
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Which ‘Closed Mould’ process?
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•RTM Resin Transfer Moulding (rigid tooling mechanically clamped)•VRTM Vacuum RTM (Semi-rigid tooling- vacuum clamped)•VARI Vacuum Assisted Resin Injection System •VARIM Vacuum Assisted Resin Injection Moulding •V(A)RTM Vacuum (Assisted) Resin Transfer Moulding •RTM Light Semi-rigid tooling- vacuum clamped•CIRTM Co-Injection RTM •VI Vacuum Infusion•DRDF Double RIFT Diaphragm Forming•LRI Liquid Resin Infusion •MVI Modified Vacuum Infusion•Quickstep Use of liquids for enhanced heat transfer in infusion •RI Resin Infusion•VIP Vacuum Infusion Process•RVBM Reusable Vacuum Bag Moulding•RIM Reaction Injection Moulding•RFI Resin Film Infusion •RIFT Resin Infusion Under Flexible Tooling•RIRM Resin Injection Recirculation Moulding•HPRTM High pressure Resin Transfer Moulding•C-HPRTM Compression High Pressure resin transfer Moulding•RTMS RTM variant with integrated Thermoplastic surface•SCRIMP Seeman Composites Resin Infusion Moulding Process•Flex Moulding Reusable vacuum bag moulding•VAIM Vacuum-Assisted Injection Moulding •VAP Vacuum Assisted Processing •VIM Vacuum Infusion Moulding. •VIMP Vacuum Infusion Moulding Process •Infujection Direct mechanical Injection of resin into infusion process
Which ‘Closed Mould’ process?
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•RTM Resin Transfer Moulding (rigid tooling mechanically clamped)•VRTM Vacuum RTM (Semi-rigid tooling- vacuum clamped)•VARI Vacuum Assisted Resin Injection System •VARIM Vacuum Assisted Resin Injection Moulding •V(A)RTM Vacuum (Assisted) Resin Transfer Moulding •RTM Light Semi-rigid tooling- vacuum clamped•CIRTM Co-Injection RTM •VI Vacuum Infusion•DRDF Double RIFT Diaphragm Forming•LRI Liquid Resin Infusion •MVI Modified Vacuum Infusion•Quickstep Use of liquids for enhanced heat transfer in infusion •RI Resin Infusion•VIP Vacuum Infusion Process•RVBM Reusable Vacuum Bag Moulding•RIM Reaction Injection Moulding•RFI Resin Film Infusion •RIFT Resin Infusion Under Flexible Tooling•RIRM Resin Injection Recirculation Moulding•HPRTM High pressure Resin Transfer Moulding•C-HPRTM Compression High Pressure resin transfer Moulding•RTMS RTM variant with integrated Thermoplastic surface•SCRIMP Seeman Composites Resin Infusion Moulding Process•Flex Moulding Reusable vacuum bag moulding•VAIM Vacuum-Assisted Injection Moulding •VAP Vacuum Assisted Processing •VIM Vacuum Infusion Moulding. •VIMP Vacuum Infusion Moulding Process •Infujection Direct mechanical Injection of resin into infusion process
Which ‘Closed Mould’ process?
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• Improved laminate quality• Moulded A and B surfaces (i.e. double sided mouldings) • Reduced exposure to VOCs • Cleaner and more efficient process• Reduced reliance on skilled laminators
Why consider the VRTM process?
VRTM (RTM Light)
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A well developed industrial technology
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VRTM used to manufacture marine components
VRTM Flybridge table
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VRTM used to manufacture marine components
VRTM Flybridge steps
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VRTM used to manufacture marine components
Control panels, hatch covers and bathing platforms
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VRTM used to manufacture marine components
Structural screen framework
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VRTM used to manufacture marine components
Rotating hatch
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Large Structures?
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Resin infusion. Simple manual process when at the smaller scale.........
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Large-scale infusion
?
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Problems with the manual infusion process.
• Labour intensive• Risk of inaccurate mixing• Increased need for degassing• Risk of bulk exotherm• Wasteful• No control of resin pressure
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Mechanising the infusion process.Direct-Infusion™
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• The controlled delivery of resin directly into the fibre under a vacuum bag without any intermediate containers.
• Control of resin mixing ratio, flow rate, and mould inlet pressure.
• Use of sensors (IMPS) to accurately measure and control In-Mould Pressure
What is Direct-Infusion™
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Advantages of Direct-Infusion™
• Reduced H&S risks (no open container of resin or manual contact necessary)
• Reduced risk of bulk exotherm
• Materials can be degassed prior to infusion
• Accurate pressure control
• Reduced wastage
• Improved laminate quality
• Control and monitoring for QA
• Repeatability
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Developing the Direct-Infusion™ process
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High Performance RIB Hull
Examples of Direct-Infusion™
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Examples of Direct-Infusion™
32m Yacht Hull
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Typical infusion strategy for large structures
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Infusion machine supplying mixed resin on-demand to flow lines
Typical infusion strategy for large structures
Manifold used to distribute resin
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Feeding central flow-line
Typical infusion strategy for large structures
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Feed transferred to next flow lines as resin reaches them
Typical infusion strategy for large structures
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Typical infusion strategy for large structures
Feed transferred to next flow lines as resin reaches them
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Typical infusion strategy for large structures
Feed transferred to next flow lines as resin reaches them
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Infusion complete
Typical infusion strategy for large structures
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• Each new flow-runner is supplied with freshly mixed resin.
• Danger of resin pre-cure is reduced.
• Possibility of pausing the infusion if major corrections are needed.
• Resin in lower sections can start to cure before the end of the infusion.
Advantages of multi stage infusion strategy
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Scale-up of Direct-Infusion™at Princess Yachts International
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136ft Hull Infusion at Atech, Horizon Group, Taiwan
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Wind and tidal energy
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Ongoing developments
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Understanding and controlling of the infusion process
• Patent registered for ‘Intelligent Manifold’ to replace the existing manual system.
• Ongoing work in the aerospace, renewable energy and civil-engineering sectors.
• Continual development of new equipment and techniques.
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Atmospheric pressure 950-1050mbar abs
Controlled resin inlet pressure
(from300mbar to 1000mbar abs)
Understanding and controlling of the infusion process
Controlling the compaction of the laminate by intelligent control of the resin inlet pressure
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45
Verification of improved laminate quality by accurate control of inlet pressures.
RB
‘Process Mapping’ to optimise results
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As the Marine Industry becomes more sophisticated,
manufacturing processes must also develop.
Working to meet the challenges of Industry 4.0
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On-Site VRTM and Infusion Demonstration
with CIJECT TWO
at Booth
(N1 Entrance, Booth No.2124)
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Thank You!
For more information please visit
www.composite-integration.co.uk