锻压技术

GLARE复杂截面构件低约束流体辅助成形规律

英文标题：Low constraint fluid-assisted forming law for GLARE complex section components

作者：王耀1 2 3 4 牛旭昶1 程娥1 张云华5 郑四发2 赵丽滨1 4 6 胡宁1 3 4

单位：（1. 河北工业大学机械工程学院天津 300401 2. 清华大学苏州汽车研究院（相城）江苏苏州 215134 3. 河北工业大学电工装备可靠性与智能化国家重点实验室天津 300401 4. 河北工业大学先进智能防护装备技术教育部重点实验室天津 300401 5. 河南本杰科技有限公司河南郑州 450003 6. 河北省跨尺度智能装备技术重点实验室天津 300401）

关键词：GLARE 低约束流体辅助成形复杂特征失效形式

分类号：TB333

出版年,卷(期):页码：2024,49(5):24-35

摘要：

针对新一代航空制造材料玻璃纤维增强铝合金层板（GLARE），以低约束GLARE为板料制备了具有变曲率和曲面特征的异形盒形件，并采用流体辅助成形工艺进行试验，探究了压边力、液压及其加载路径对试件成形质量的影响规律，根据零件失效机理分析得到了有利于成形的最佳工艺参数，并结合优化后的液压加载路径得到复杂构件成形规律。分析了不同成形高度异形盒形件的失效形式。结果表明：在一定范围内增大压边力与液压有利于零件成形；采取较大液压加载速度并保压的路径可提高零件的成形质量。

Abstract:

For a new generation of aerospace manufacturing material Glass Fiber Reinforced Aluminum alloy Laminates(GLARE), the irregular box-shaped parts with variable curvature and curved surface characteristics were prepared by using low-constraint GLARE as sheet metal, and the experiment was conducted by the fluid-assisted forming process to explore the influence laws of blank holding force, hydraulic pressure and its loading path on the forming quality of specimen. Furthermore, according to the failure mechanism analysis on the parts, the best process parameters for the forming were obtained, and combined with the optimized hydraulic pressure loading path, the forming law of complex components was obtained. In addition, the failure forms of irregular box-shaped parts with different forming heights were analyzed. The results show that increasing the blank holding force and hydraulic pressure within a certain range is beneficial to the forming of parts, and adopting the path of larger hydraulic pressure loading speed and holding pressure improves the forming quality of parts.

基金项目：

基金项目:国家自然科学基金资助项目（52005153）；河北省自然科学基金资助项目（E2023202183）；中央引导地方科技发展项目（236Z1903G，206Z1803G）；天津市“项目+团队”重点培养专项（XC202052）；河北省重点研发计划项目（23311812D）

作者简介：王耀（1986-），男，博士，副教授 E-mail：bhwy2014@126.com

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