铜钢复合板弯片成形数值模拟与成形试验

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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.
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