Reduction of composite deformation based on tool-part thermal expansion matching and stress-free temperature theory

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• 作者：Yong Lu ; Yingguang Li ; Nanya Li ; Xiaochun Wu
• 关键词：Composite ; Thermal Expansion ; Chemical shrinkage
• 刊名：The International Journal of Advanced Manufacturing Technology
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：88
• 期：5-8
• 页码：1703-1710
• 全文大小：
• 刊物类别：Engineering
• 刊物主题：Industrial and Production Engineering; Media Management; Mechanical Engineering; Computer-Aided Engineering (CAD, CAE) and Design;
• 出版者：Springer London
• ISSN：1433-3015
• 卷排序：88

文摘

Aiming at the serious deformation problem of composite after curing, a new curing technology based on tool-part thermal expansion matching and stress-free temperature theory is presented to reduce the deformation. The thermal expansions of composite tool are designed to match with the composite part in parallel and perpendicular to the fiber direction. The stress-free temperature theory is introduced to reduce chemical shrinkage of resin by modifying the curing parameters. To verify the accuracy of this technology, the deformation of composite samples manufactured by traditional and the new curing technologies are compared. The experiment results indicate that the deformation of composites cured by the new curing technology is reduced to 8.3 % of traditional curing process.