Delamination Numerical Simulation and Stamping Test of Copper-Steel Clad Plate Half Bend
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摘要: 铜钢复合钢板HALF弯片弯曲半径小，冲压成形变形量大，易出现复合界面开裂、脱层问题。采用ABAQUS三维有限元软件对HALF弯片热成形过程进行数值模拟，分析了600℃、700℃、800℃、900℃成形温度下弯片应力、弯片厚度及复合界面选定点应力，并进行了铜钢复合板HALF弯片热成形试验，测定复合界面结合率与剪切强度。结果显示：成形温度升高可以降低弯片成形应力和复合界面应力，对弯片厚度变化影响不大；铜钢复合板弯片经900℃加热冲压成形后，复合界面结合良好无脱层。Abstract: The copper-steel clad plate half bend has small bending radius and large stamping deformation, which can lead to crack and delamination of the composite surface. In this paper, the numerical simulation of half bend was carried out by ABAQUS finite element software, the thickness and stress of half bend at forming temperatures of 600℃, 700℃, 800℃ and 900℃ were analyzed. The forming experiment of copper-steel clad plate half bend was carried out. The results showed that increasing temperature could reduce half bend stress and interfacial stress, and had little effect on the thickness variation. When the copper-steel was half bend at 900℃, there was no delamination at the composite interface.
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Keywords:
- copper-steel clad plate /
- stamping /
- half bend /
- delamination
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[1] 范祎欣,吴志生,李岩,等.退火温度对爆炸焊铜/钢复合板界面与组织的影响[J].热加工工艺,2018,47(4):134-140. [2] 李宝绵,李兴刚,许光明,等.铜/钢复合材料的研究及应用[J].材料导报,2002,15(2):22-25. [3] 薛治国,黄杏利,高宝利.大面积铜钢复合板爆炸焊接工艺研究[J].材料开发与应用,2016,31(1):41-44. [4] 郭励武.不锈钢复合板结合界面的性质研究[J].新技术新工艺,2018(7):45-47. [5] 李龙,张心金,刘会云,等.金属复合板质量评价的技术标准[J].材料导报,2013,27(13):107-112. [6] 杨洋.大宽幅不锈钢特厚板热轧复合物理模拟与数值仿真预测[D].秦皇岛:燕山大学,2013.
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