High-pressure resin transfer molding (HP-RTM) for the aircraft industry

Greenhouse gas emissions and fuel costs can be reduced by decreasing the aircraft weight. One key way to do this is the use of composite structures for the wings and fuselage. However, current manufacturing methods within the aircraft industry are labour intensive and costly. To satisfy the growing and competitive market, new process solutions are needed.
High-pressure resin transfer molding (HP-RTM) enhances the processing efficiency for structural aircraft components with regard to costs and cycle time. Initiated by the strategic cooperation between Hengrui Corporation and Fraunhofer ICT, an industrial consortium demonstrated the feasability of the HP-RTM process for the manufacturing of structural aircraft components.
The developed process chain consists of a fabric-based preforming concept with sequential stamp draping, followed by a high-pressure resin transfer molding step, completed by the final trimming of the component.
Key partners along the entire process chain were involved: ACTC (www.grouphrc.com/research/), Fraunhofer ICT (www.ict.fraunhofer.de), sgl carbon (www.sglcarbon.com/), Alpex (www.alpex-tec.com), Huntsman (www.huntsman.com/), Hufschmied (www.hufschmied-tools.com)
The HP-RTM process chain was built up and validated at Fraunhofer ICT’s facilities.

[@hackfleischkarl3718]

😍

[@_CINE.LENS.____]

❤❤❤❤❤❤

[@proto_hexagon5649]

temperature? its work in space vacum where temp can go easly to 1000ºC and -250ºC?

[@DigitalArtisan77]

Unlikely if resin

[@ddegn]

Temperature doesn't mean much in a vacuum.

[@DigitalArtisan77]

@@ddegn no but as temperature and pressure are part of the same thermodynamics system it kind of does.

[@ddegn]

@@DigitalArtisan77 A thermos jug with coffee in it might have a high temperature in the vacuum walls. Is the high temperature vacuum going to cause a problem for the material of the outer wall?
The high temperature of a near vacuum isn't going to conduct much energy into or out of anything.

[@DigitalArtisan77]

@@ddegn absolutely you are right, no argument. But it still exists within the same frmework, even if the value is so small as to represent zero.

[@Alhussainba]

Much less consumables compared to resin infusion, sounds great.

[@rhyssmith3280]

shushhhhhh🤫🤫🤫🤫🤫🤫

[@ejrujegwjwheuejsbshjdvshhe3355]

shush kid

[@fluiditynz]

From what I can see it's still resin infusion but without the vacuum bagging, instead, expensive steel moulds and reusable seals. It's all about quantity of parts infused per mould. There are silicon bags used for similiar purpose in the industry I've seen.

[@manle2337]

​@@fluiditynz they need to get it done under one minute to have a future.