第43卷第2期 Vol. 43No. 2
*++++++ +特种成形
。压技假
FORGING & STAMPING TECHNOLOGY
2018年2月 Feb.2018
基于Simufact筒形件强力旋压与变薄拉深成形质量研究
杨
锋，樊文欣，汤传尧，王瑞瑞，孔维静
（中北大学机械工程学院，山西太原030051）
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能压与变薄拉深两种简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坏进行两种不同成形工艺的数值模拟。以连杆村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，材料科利用率高，适用于单一型号连杆衬套的大批量生产。
关键词：连杆衬套；强力能压；变薄拉深；锡青铜；简形件；Simufact DOI: 10. 13330/j. issn. 1000-3940. 2018. 02. 010
文章编号：1000-3940（2018）02-0049-06
中图分类号：TG376
文献标识码：A
Qualityresearchonpowerspinningandironingforcylindricalpart
based on Simufact
Yang Feng, Fan Wenxin, Tang Chuanyao, Wang Ruirui, Kong Weijing( College of Mechanical Engineering, North University of China, Taiyuan 030051, China)
Abstract : In order to get high forming quality of cylindrical part, cylindrical part forming processes of power spinning and ironing were an-alyzed 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, extermal 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 relia-bility of simulation was verified by test through selecting the best forming process. The results show that comparing with the power spin-ning with three rotating wheels and three times consecutive ironing of tin-bronze parts, the size accuracy of ironing process is slightly high-er 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. Key words : connecting rod bushing; power spinning; ironing; tin-bronze; cylindrical part; simufact
关键零部件，它避免了活塞与连杆小头直接接触，
连杆衬套作为连接发动机活塞销和连杆小头的
降低连杆小端应力集中，从而有效地保护了连杆小端，因此，要求具有良好的力学性能，同时还要具
收稿日期：20171101；修订日期：20171222
基金项目：山西省自科学基金资助项目（20120110232）
作者简介：将锋（1993-），男，额土研究生 E-mail: 122297706@ qy- com
通讯作者：樊文欣（1964-），男，博士，教授 E-mail: fanwx@ nuc. edu. cn
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特种成形栏目是由北京机电研究所有限公司①费助刊出