Title E-Beam Automated Tape Placement Technology for High Temperature Composites
Source Proc. 52nd Intl. SAMPE Symp. and Exhib.
Year 2007
Author(s) Hoyt Haight, A. E.; Wesson, S. P.; Jensen, B. J.; Hou, T.; Cano, R. J.
Abstract Automated composite fabrication methods such as filament winding, automated tape placement (thermal or electron-beam), and fiber or tow placement coupled with non-autoclave processing offer great promise for decreasing the costs of composites for use in a variety of applications ranging from aerospace to sporting goods. However, the production of parts with “autoclave properties” still remains somewhat elusive. Thermoplastic polymer matrix ATP and layer-by-layer electron beam curing ATP (EB-ATP) have been identified as among the most promising techniques for achieving “autoclave properties” in ATP composites. Adherent Technologies, in cooperation with NASA Langley Research Center have been developing tapes containing high temperature resins and evaluating their use in EB-ATP placement methods. The Phase I effort resulted in the successful production of high quality powder towpregs which were converted to tapes for evaluation in e-beam curing processes. While the resin content of the powder towpreg was not optimized for tape production, tapes of sufficient quality for evaluation in e-beam cure were produced.
Keywords Composites, electron beam, e-beam curing, automated tape placement, ATP, radiation processing, high temperature composites, towpreg, thermoplastic polymer matrix