网站首页期刊简介编委会过刊目录投稿指南广告合作征订与发行联系我们English
某汽轮机叶片材料热变形行为及锻坯参数优化
英文标题:Thermal deformation behavior of turbine blade material and blank manufacturing parameter optimization
作者:钟杰 李华峰 肖艳红 郭成 
单位:西安交通大学 
关键词:汽轮机叶片 流动应力方程 数值模拟 制坯 
分类号:TG317
出版年,卷(期):页码:2012,37(2):1-5
摘要:

为提高某叶片锻件质量和生产效率、减少模具磨损,采用热模拟试验研究了叶片材料的热变形行为,建立了材料的高温流动应力方程;以此方程作为材料模型,对叶片的锻造过程进行了数值模拟,优化了制坯工艺参数。试验分析表明,该材料热变形行为符合双曲正弦函数关系;数值模拟结果表明,采用叶根与叶冠成40°角的坯料较优,成形质量与成形载荷对坯料各参数的敏感性不同;试模结果表明,坯料的综合优化可以显著提高成形质量和生产效率。该项研究工作对提高叶片生产技术水平具有重要指导意义。

To enhance a turbine blades forging quality and production efficiency,reduce the mold abrasion,the thermal deformation behavior of its material was researched and a high temperature constitutive equation of the material was established which were based on a thermal simulation experiment.Using the established equation,the forging process was simulated in the way of orthogonal test and the blank parameters were optimized.The result of thermal simulation experiment shows that this material follows hyperbolicsine function when it is forged. The forging simulation shows that it's better to use a blank of 40 degree between the tip and root and there is a difference of sensitivity coefficient on factors between forging quality and die load. Forging test shows that forging quality and production efficiency can be improved with optimization of blank. This research shall be an important reference for blade production.

基金项目:
作者简介:
参考文献:


[1]张志文.叶片锻造[M].西安:西安交通大学出版社,1987.
[2]胡楚江.汽轮机叶片精锻工艺与模具参数优化[D].西安:西安交通大学,2008.
[3]Ou H,Lan J,Armstrong C G,et al. An FE simulation and optimisation approach for the forging of aeroengine components[J].Journal of Materials Processing Technology,2004,(151):208-216.
[4]林新波.Deform-2D和Deform-3D CAE软件在模拟金属塑性变形过程中的应用[J]. 模具技术,2000,(3):75-80.
[5]周朝辉,曹海桥,吉卫,等.Deform有限元分析系统软件及其应用[J].热加工工艺,2003,(4):51-52.
[6]GB731487 金属压缩试验方法[S].
[7]Sellars C M. Hot workability[J].Int. Metallurg.Rev,1972,(17):1-24.
[8]谢水生.金属塑性成形的有限元模拟技术及应用[M].北京:科学出版社,2008.
[9]刘小为.正交试验设计及回归分析方法[M].西安:西安交通大学出版社,1983.

服务与反馈:
本网站尚未开通全文下载服务】【加入收藏
《锻压技术》编辑部版权所有

中国机械工业联合会主管  中国机械总院集团北京机电研究所有限公司 中国机械工程学会主办
联系地址:北京市海淀区学清路18号 邮编:100083
电话:+86-010-82415085 传真:+86-010-62920652
E-mail: fst@263.net(稿件) dyjsjournal@163.com(广告)
京ICP备07007000号-9