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Forming of staged thermoset composite materials
专利权人:
The Boeing Company
发明人:
Butler Geoffrey A.
申请号:
US201414561900
公开号:
US9539767(B2)
申请日:
2014.12.05
申请国别(地区):
美国
年份:
2017
代理人:
摘要:
A method of forming a composite article may include initially curing a composite laminate at an initial temperature to an initial cure stage of 30-50 percent of full cure and beyond a gel point to form an initially-cured composite laminate. The method may initially include heating the initially-cured composite laminate to an intermediate temperature higher than the initial temperature and above a resin glass transition temperature. In addition, the method may include intermediately curing the composite laminate to an intermediate cure stage of 50-70 percent of full cure while on a final forming tool to form an intermediately-cured composite laminate. Furthermore, the method may include removing the intermediately-cured composite laminate from the final forming tool, and finally curing the intermediately-cured composite laminate at a final temperature higher than the intermediate temperature to a final cure stage.
来源网站:
中国工程科技知识中心
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