引线框架铜合金材料弯曲成形性能数值分析
Numerical Simulation Analysis on Bending Properties of Copper Alloy for Lead Frame
苏娟华， 张国军， 贾淑果
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作者单位：（河南科技大学 材料科学与工程学院，河南 洛阳 471003）
中文关键字：引线框架铜合金；数值模拟；弯曲成形性能
英文关键字： copper alloys for lead frame； numerical simulation; bending performance
中文摘要：结合有限元法分析了三种不同的高性能引线框架铜合金材料（Cu-Fe-P、Cu-Ni-Si、Cu-Cr-Sn-Zn）的弯曲成形过程，找出相应材料的最小弯曲半径值，比较它们的弯曲成形性能的优劣。结果表明，Cu-0.38Cr-0.17Sn-0.16Zn框架材料的弯曲成形性能最好，Cu-0.1Fe-0.03P次之，Cu-3.2Ni-0.75Si最差。
英文摘要：The finite element was used to analysis the bending forming process for three different copper alloy for lead frame materials (Cu-Fe-P, Cu-Ni-S and Cu-Cr-Sn-Zn), so the minimum bend radius of corresponding materials were found and the bending properties of different materials were compared. The results show that the bending properties of
Cu-0.38Cr-0.17Sn-0.16Zn is best, that of Cu-0.1Fe-0.03P is better, that of Cu-3.2Ni-0.75Si is worst.