Transactions of Materials and Heat Treatment

Title：Die structure optimization in loose tooling forging process for large grinding roller shaft

Authors： SU Juan-hua1 CHEN Yan-wei1 SHI Yu-lin2 CHEN Zhuo1(1.College of Material Science and Engineering Henan University of Science and Technology Luoyang 471003 China 2.CITIC Heavy Machinery Inc. Luoyang 471039 China)

Unit：

KeyWords： grinding roller shaft loose tooling forging numerical simulation round radius pattern draft

ClassificationCode：TG316

year,vol(issue):pagenumber：2009,34(4):15-18

Abstract：

Grinding roller shaft is a key part of ATOX grinding roller,which has rectangular flange,and the size of its cross section has reached 1850 mm×1110 mm.Upsetting diameter of bloom should reach 2900 mm and 100 t bloom should be used if common forge method was used,which beyonded capacity of the pressent hydraulic compresser,so loose tooling forging process was employed.It was difficult to forge because of the corner which limited metal flowing.In order to assure square corrner form successfully,die structure was optimized.Simulation software DEFORM-3D was used to simulate the forming process of square part under different round radius and pattern draft.After analyzing and comparing,the appropriate die structure was found.The eligible forings also proved the rationality of the die structure.

Funds：

河南科技大学博士科研启动基金资助项目(20060616)

Reference：

[1]邓小林.为5000t/d生产线配套的大型原料立磨的技术现状[J].技术装备,2006,(9):60-61.
[2]Ryuichiro Ebara,Katsuaki Kubota.Failure analysis of hotforging dies for automotive components[J].EngineeringFailure Analysis,2008,(15):881-893.
[3]Behrens B A.Finite element analysis of die wear in hot forg-ing processes[J].CIRP Annals Manufacturing Technology,2008,(57):305-308.
[4]林新波,李荣先,柳百成,等.利用有限元仿真技术优化模具结构[J].锻压技术,2005,34(2):45-48.
[5]邓明义.关于热锻模凹圆角半径取值的探讨[J].鸡西大学学报,2005,5(2):55-56.
[6]孙绍华.模具设计中为避免锻件折叠应考虑的因素[J].轻合金加工技术,2007,35(4):29-34.
[7]胡亚民,华林.锻造工艺过程及模具设计[M].北京:北京大学出版社,2006.
[8]郝滨海.锻造模具简明设计手册[M].北京:化学工业出版社,2006.
[9]王梦寒,周杰.镦挤拔模斜度对成形的影响规律研究[J].锻压技术,2005,30(1):42-43.
[10]胡亚民,华林.锻造工艺过程及模具设计[M].北京:北京大学出版社,2006.
[11]李志广.法兰轴类锻件顶锻拔模斜度的设计[J].锻压机械,1998,(1):51-52.

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