成形路径对Al/CFRTP/Al层板冲压成形特性的影响
Influence of forming path on stamping characteristics of Al/CFRTP/Al laminates
王健 1王重阳 2丁梓峻 2熊浪 2胥亮2
作者信息
- 1. 燕山大学 国家冷轧板带装备及工艺工程技术研究中心,河北 秦皇岛 066004;燕山大学 机械工程学院,河北 秦皇岛 066004;海安太原理工大学 先进制造与智能装备产业研究院,江苏 南通 226600
- 2. 燕山大学 国家冷轧板带装备及工艺工程技术研究中心,河北 秦皇岛 066004;燕山大学 机械工程学院,河北 秦皇岛 066004
- 折叠
摘要
为提升纤维金属层板成形质量和成形精度,研究了不同成形路径对Al/CFRTP/Al层板冲压成形特性的影响规律.通过回弹角度测量、微观形貌分析以及三点弯曲试验,研究了制板成形、成形固化和混合共冲 3 种不同成形路径对纤维金属层板U形件成形特性的影响.结果表明,混合共冲制备的试件回弹角度为 1.34°,中间层内外侧 0°方向碳纤维发生拉伸断裂,并形成了贫富树脂区和厚度不均匀等宏观缺陷.成形固化制备的试件回弹角度为 2.84°,中间层内外侧 0°方向碳纤维均发生拉伸断裂,厚度分布均匀,无宏观缺陷,综合性能较好,成形质量较为可控.
Abstract
To improve the forming quality and forming accuracy of fiber metal laminates,the influence laws of different forming paths on the stamping characteristics of Al/CFRTP/Al laminates were studied.Springback angle measurement,micromorphology analysis and three-point bending test were conducted to study the influences of three different forming paths,which are sheet forming,forming and cu-ring and combined stamping,on the forming characteristics of fiber metal laminates U-shaped parts.The results show that the springback angle of the specimen prepared under combined stamping path is 1.34°.The carbon fibers in the direction of 0° both inside and outside the middle core layer are tensile fracture,and the maroscopic defects such as resin-starved and resin-rich areas and uneven thickness dis-tribution are formed.The springback angle of the specimen prepared under forming and curing path is 2.84°,and the carbon fibers are tensile fracture in the direction of 0° both inside and outside the middle core layer,the thickness distribution is uniform without macro-scopic defects,the comprehensive performance is good,and the forming quality is more controllable.
关键词
Al/CFRTP/Al层板/冲压成形/成形路径/回弹角度/成形质量Key words
Al/CFRTP/Al laminates/stamping/forming path/springback angle/forming quality引用本文复制引用
基金项目
山西省科技重大专项计划项目(202101120401008)
海安太原理工大学先进制造与智能装备产业研究院项目(2023HA-TYUTK-FYF009)
&&(E2023203058)
出版年
2024
NETL
NSTL
万方数据