A prototype microwave-powered autoclave that could reduce composite curing times by up to 60% is to produce its first carbonfibre aircraft parts by September. While conventional autoclaves use convection to transfer heat to the parts, the use of microwave radiation is expected to cure composites more efficiently. The autoclave's initial test phase is to be completed by mid-2008.
Developed with German companies Maschinenbau Scholz and Fricke & Mallah Microwave Technology, the 4m (13.1ft) long, 1.6m diameter, 8m3 (280ft3) volume chamber has a heat output of 231kW. The prototype has been designed to operate in a conventional manner or to use its microwave emitters. The autoclave will be produced and marketed by Scholz.
Source: Flight International