Non-Autoclave Composite Manufacture using Quickstep
Andrew Groth
CSIRO Molecular Science
Australia

Keywords: Composite, Non-autoclave, fabrication

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The QUICKSTEP composites fabrication process was invented by Neil and Deryck Graham (DECTA) for aircraft use to fulfil a need for a moulding system that could produce large numbers of high grade parts in short cycle times with low capital and operating costs using low skill labour. Quickstep Pty Ltd was set up to develop QS process while technology and applications further developed by CSIRO Molecular Science, Advanced Composites Group.

The QUICKSTEP process is a non-autoclave technique of advanced composite fabrication. The QUICKSTEP process uses a unique, fluid filled balanced pressure, floating mould technique where heated fluid is pumped through the mould at low pressure; combined with vibration through the fluid to produce advanced fibre (carbon/Kevlar) and glass reinforced composite components. The QUICKSTEP process can use thermoset or thermoplastic prepregs, wet resin/dry fibre or phenolic resins in the production of composite parts. The low-pressure nature of the QUICKSTEP process allows for relatively lightweight tooling and prevents core-crush when producing sandwich composite components. There is also little or no exotherm, even when producing very thick composite parts. Experiments involving co-cure, joining and bonding will also be presented.