锻压技术

基于Simufact筒形件强力旋压与变薄拉深成形质量研究

英文标题：Quality research on power spinning and ironing for cylindrical part based on Simufact

作者：杨锋樊文欣汤传尧王瑞瑞孔维静

单位：中北大学

分类号：TG376

出版年,卷(期):页码：2018,43(2):0-0

摘要：

为了得到较高成形质量的筒形件，采用有限元数值模拟的方法对强力旋压与变薄拉深两种筒形件成形工艺进行分析，使用锡青铜杯形件作为研究对象，利用Simufact有限元仿真软件对同一毛坯进行两种不同成形工艺的数值模拟。以连杆衬套成形件的内径扩径量、外圆度误差、外轴线直线度误差、内轴线直线度误差与喇叭口长度为成形质量评价指标，选取最佳成形工艺，并对仿真可靠性进行试验验证。结果表明，就锡青铜的三旋轮错距强力旋压与三次连续变薄拉深而言，变薄拉深工艺的尺寸精度略优于强力旋压工艺，且变薄拉深工艺形成的喇叭口较短，材料利用率高，适用于单一型号连杆衬套的大批量生产。

In order to get high forming quality of cylindrical part, cylindrical part forming processes of power spinning and ironing were analyzed by finite element numerical simulation. For tin-bronze cup part, two different forming technologies of the same blank were simulated by software Simufact. The inner diameter expansion amount, external roundness error, straightness error of outer axis, straightness error of inner axis and length of bell mouth of formed connecting rod bushing were regarded as evaluation indexes of forming quality, and the reliability of simulation was verified by test through selecting the best forming process.The results show that comparing with the power spinning with three rotating wheels and three times consecutive ironing of tin-bronze parts, the size accuracy of ironing process is slightly higher than that of the power spinning process，and the bell mouth formed by the ironing process is shorter. Thus, the ironing process has higher material utilization and is suitable for mass production of single-type connecting rod bushing.

基金项目：

山西省自然科学基金资助项目(2012011023-2)

作者简介：杨锋(1993-)，男，硕士研究生 E-mail：122297706@qq.com 通讯作者：樊文欣(1964-)，男，博士，教授 E-mail：fanwx@nuc.edu.cn

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