摘要
阐述了引线框架材料在国内外的研究与发展现状,着重分析了铜合金材料的弯曲回弹量。利用三维软件建立弯曲模型,然后在模拟软件中进行模拟,进行计算和必要的后处理后,最后根据有关数据计算出四种铜合金材料的弯曲回弹量的大小,得出四种铜合金材料CuFeP、CuCrSnZn、CuCrZrMg、CuNiSi的回弹量由大到小顺序排列为:CuCrZrMg、CuNiSi、CuFeP、CuCrSnZn,表明四种引线框架铜合金材料的弯曲性能依次增大;铜合金框架材料的最小弯曲半径越小,其回弹量越小。
The research and development status of materials for lead frame abroad and in China was described, then the springback amount of copper alloy was discussed. The bending model was built by 3-D modeling software, which was simulated and calculated in simulation software, then the necessary post-processing was made, finally, according to the data, the bending springback amounts of the four kinds of copper alloy materials were calculated. The conclusion is that, from larger to little, the order of springback amounts of the four kinds of materials for lead frame is CuCrZrMg alloy, CuNiSi alloy, CuFeP alloy, CuCrSnZn alloy, it is verified that the bending properties of the four kinds of materials for lead frame increase in turn, the smaller the minimum bending radius of copper alloy for lead frame, the smaller the springback amount.
出处
《热加工工艺》
CSCD
北大核心
2011年第7期91-93,96,共4页
Hot Working Technology
基金
河南省科技攻关计划项目(102102210174)
河南科技大学重大科技前期预研专项项目(2008ZDYY005)
河南科技大学博士科研启动基金资助项目(20060620)
关键词
引线框架
铜合金
弯曲回弹
有限元分析
lead frame
copper alloy
bending springback
finite element analysis
作者简介
张国军（1986-），男，河南人，研究生，研究方向：铜合金功能材料；电话：15036599407E-mail：zgj8672@126．com
通讯作者：苏娟华（1963-），女，江苏人，教授，博士；研究方向：铜合金功能材料、金属精密成形工艺开发以及数值模拟
