|
摘要：
|
|
分析了旋压成形工艺,总结了旋轮的工作状态和失效形式;分析了旋轮用钢的选取、热处理方案制定、旋轮形状优化的一般原则,并给出了相应的建议;采用有限元方法对旋轮进行了静力分析,获得了旋轮的应力分布规律,揭示了旋轮断裂的路径;结合生产中旋轮的断裂实例,将理论研究应用于裂纹分析,成功解释了裂纹的起源和扩展路径。研究表明,为获得高性价比的旋轮,需在理论研究的基础上综合考虑多方面的关键技术问题。
|
|
The spinning process was analyzed,and the working condition and failure mode of roller were concluded.The general principle of selection material,heat treatment plan and shape optimization of roller was analyzed,and the relative suggestion was given.The roller in static condition was analyzed by finite element method and the stress distribution was obtained.The fracture path of roller was revealed further.According to the fractured roller,the origin and propagation path of crack were analyzed sucessfully with introduced theoretical research.The results show that some key technical matters shall be considered comprehensively based on theoretical research for obtaining high cost performance roller.
|
|
基金项目：
|
|
山东省博士后创新基金资助项目(200803003)
|
|
作者简介：
|
|
|
|
参考文献：
|
[1]赵云.旋压技术现状[J].锻压技术,2005,30(5):95-100.
[2]Zhan M,Yang H,Zhang J H,et al.3D FEManalysis of in-fluence of roller feed rate on forming force and quality of conespinning[J].Journal of Materials Processing Technology,2007,187-188:486-491.
[3]Xia Q X,Cheng X Q,Hu Y,et al.Finite element si mulationand experi mental investigation on the forming forces of 3Dnon-axisymmetrical tubes spinning[J].International Journalof Mechanical Sciences,2006,48:726-735.
[4]赵云豪.旋压技术与应用[M].北京:机械工业出版社,2008.
[5]李增辉,赵升钝,韩冬,等.浅析旋轮常见的几种失效形式[J].锻压技术,2007,32(2):57-60.
[6]宫敏利.国内外模具钢生产现状及发展趋势综述[J].化学工程与装备,2008,(2):64-67.
[7]王晓春,赵宏敏.基体钢在冷挤压模具中的应用[J].模具制造,2003,(9):57-58.
[8]贺其申.热处理工艺在Cr12 MoV模具线切割开裂问题上的改进[J].柴油机设计与制造,2004,(1):48-49.
|
|
服务与反馈：
|
|
【文章下载】【加入收藏】
|
|
|
|
