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| Resin Pressure Test of Composite Ⅰ Shape Structure in Autoclave Zero-Bleeding Process and Pressure Uniformity Analysis of Pressure Transfer With Rigid Mold |
| SUN Kai, LIU Weiping, HUANG Zhijun, SUN Cheng, CHEN Ping, LI Zhiyuan |
| (Institute of Aeronautical Manufacturing Technology, Shanghai Aircraft Manufacturing Co., Ltd., Shanghai 200436, China) |
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Abstract For Ⅰ shape parts made by 977-2/IMS prepreg using H type molding in autoclave zero-bleeding process,
resin pressure has been tested by using online standard curing cycle and step pressurization cycle respectively. The equivalence
of resin pressure and autoclave pressure is investigated and the uniformity of pressure transfer with rigid mold is
analyzed according to the resin pressure test results. The results indicate that the resin pressure is consistent with autoclave
pressure in one side rigid mold area after stabilization. The equivalence of resin pressure and layer pressure in autoclave zero-
bleeding process is verified. The resin pressure has a load balance procedure in two-side rigid mold. The resin pressure is
even in different area and is consistent with the autoclave pressure. Compared with step pressurization cycle, the resin pressure
has some fluctuations of the standard curing cycle in the initial stage of the test. However, the resin pressures under the
two process cycles are the same after stabilization. It provides a reference for the resin pressure test of parts whose thermal
distribution is relevant large different.
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2016, 
