|
摘要：
|
|
开发了一种简单实用、可在单动压力机上使用的管材液压胀形装置,用于薄壁金属管材的自由胀形、轴压胀形和异形截面中空件的液压胀形。该装置不需要复杂的外部供液系统,通过增压活塞挤压缸体中液体的方式来为管材成形提供液压力和轴向力,通过设计增压缸体和控制增压活塞的行程等来实现两个载荷的合理匹配。试验表明,该装置结构简单、操作方便、工作可靠;合理的载荷匹配能显著地提高管材液压胀形的成形性能。
|
|
A simple and practical device was developed for hydraulic bulging of a tube on a single action press.The free hydraulic bulging,the bulging with axial feed and the manufacturing of hollow parts with various shapes from thin-walled metal tubes can be performed by the new device.Without the need of complicate external hydraulic source,the internal hydraulic pressure and axial force on the tube can be obtained automatically by extruding the liquid in a cylinder by an actuating piston and the load path can be achieved by properly designing the cylinder and the piston stroke.The primary experimental results reveal that the device features simple structure,convenient operation and reliable work,and the forming ability of tubes can be improved greatly under a reasonable load path.
|
|
基金项目：
|
|
广西自然科学基金资助项目(桂科自0832243);;
制造系统与先进制造技术广西重点实验室基金资助项目(桂科能07109008_014_Z)
|
|
作者简介：
|
|
|
|
参考文献：
|
[1]Dohman F,Hartl Ch.Hydroforming-applications of coherentFE-simulations to the development of products and process[J].Materials Processing Technology,2004,150(1-2):18-24.
[2]袁安营,王中堂,程明,等.管材内高压成形系统的建立及若干问题的探讨[J].锻压装备与制造技术,2008,43(1):80-84.
[3]Gelin J,Ghoutai O,Labergere C.From optional design tocontrol of process in sheet forming and tube hydroforming[A].Proceedings of ECCOMS[C].Barcelona:Spanish As-sociation for Numerical Methods in Engineering,2000.
[4]哈尔滨工业大学.一种内压成形机:中国,ZL00208694[P].2001-08.
[5]Fllice L,Frantini L,Micari F.A simple experiment to char-acterize material formability in tube hydroforming[J].An-nals of the CIRP,2001,50(1):213-221.
[6]Yang Lianfa,Guo Cheng.A simple experimental tooling withinternal pressure source used for evaluation of material form-ability in tube hydroforming[J].Journal of Materials Pro-cessing Technology,2006,180(1-3):310-317.
[7]王殿楹.大型薄壁三通管材液压胀形技术探讨[J].重型机械,1997,60(6):37-40.
[8]Yeong-Maw Hwang,Yi-Kai Lin.Analysis and finite element sim-ulation of the tube bulge hydroforming process[J].Journal ofMaterials Processing Technology,2002,125(9):821-825.
|
|
服务与反馈：
|
|
【本网站尚未开通全文下载服务】【加入收藏】
|
|
|
|
