基于Deform-3D的重型汽车新型同步环精密成形过程有限元分析  

Finite elements analysis of precision forming process on new synchronizing ring of heavy-duty truck based on deform-3D

作　　者：陈洁[1] 蔡志武[2] 

机构地区：[1]重庆科技学院机械工程学院,重庆400050 [2]江铃汽车股份有限公司产品开发技术中心,江西南昌330001

出　　处：《制造技术与机床》2011年第7期111-114,共4页Manufacturing Technology & Machine Tool

基　　金：重庆市科技攻关项目资助(CSTC;2010AC6082);重庆市教委科学技术研究项目资助(KJ101405)

摘　　要：重型汽车新型同步环是一种基本对称结构的、带有3个Y型凸台的环形薄壁型零件,主要用于汽车行驶中平稳快速换档。由于新型同步环形状复杂,成形困难,锻造时极易产生填充不满、折叠等情况,因此合理设计锻造工艺与模具结构是一个关键。利用非线形有限元分析软件Deform-3D对重型汽车新型同步环精密成形过程进行仿真,获得成形过程中的应变、应力、材料流动情况,同时对成形过程中的缺陷如折叠、裂纹,进行预测。通过对同步齿环成形过程分析与缺陷预测,可以有效缩短产品开发周期。The new synchronizing ring of heavy-duty truck is a basic symmetric ring thin wall part with three Y boss structure.It is mainly used in gearshift.It is a key for forging process and mould design because its complex shape which results in insufficient filling,folding and so on.Analyzing of new synchronizing ring of heavy-duty truck precision forming process with Deform-3D,the strain field and the stress field in the forming process can be solved,meanwhile the faults which possibly occur during the forming like folding and crack can be predicted.The cycle life of new product development is reduced greatly by forming process analyzing and flaw prediction of the synchronizer ring.

关 键 词：新型同步环 有限元 成形工艺 DEFORM-3D 

分 类 号：TH162.1[机械工程—机械制造及自动化]