锻压技术

Mn18Cr18N钢护环的包套冲挤成形数值模拟与试验研究

英文标题：Research on the numerical simulation and the experimentation of the punching-extrusion process with an outer ring for Mn18Cr18N retaining ring

作者：安红萍刘建生杨超操郭会光陈慧琴陈金科

单位：太原科技大学材料科学与工程学院太原科技大学材料科学与工程学院太原科技大学材料科学与工程学院太原科技大学材料科学与工程学院太原科技大学材料科学与工程学院中国二重机械集团公司山西太原030024 山西太原030024 山西太原030024 山西太原030024 山西太原030024 四川德阳618013

关键词：Mn18Cr18N 护环包套冲挤成形试验 FEM

分类号：TG376

出版年,卷(期):页码：2006,31(6):127-130

摘要：

针对Mn18Cr18N护环钢热成形时易发生开裂、变形不均等缺陷,研究开发了一种新工艺,并对其中的包套冲挤成形进行了数值模拟和试验研究。通过试验验证了有限元模拟计算和实际变形的一致性,同时表明该方法不仅改善了坯料受力变形状态,合理调控了热力参数,有效防止了变形开裂缺陷,有利于提高产品质量和经济效益。

Regarding to the difficult problems in the hot forming of Mn18Cr18N retaining ring,such as cracking,unevenness structure and difficult controllability,a new technology has been developed.And experimental study on the punching and extrusion with an outer ring has been researched.The results are in accordance with that of numerical simulation.The outcome of experimentation shows that there is an advanced process to resolve those difficult problems and to improve the manufacture′s quality.

基金项目：

参考文献：

[1]Tsukahara H,Chaze A M.Microstructural evolution of anaustenitic stainless steel during a complex hot forging se-quence(C).THERMEC'97 International Conference onThermomechanical Processing of Steels and Other Materials,USA.,1997.
[2]WU jianguo,GUO huiguang,LIU jiansheng.Experiment andresearch on hot deformation characteristics of Mn18Cr18N Steel(C).Proceedings of International Symposium on MaterialsScience and Engineering.Taiyuan,china.July 31-August 4,2005:648 652.
[3]Stein G,Hucklenbroich I.P2000-A new austenitic high nitrogensteel for power generating equipment.High Nitrogen Steels(C).Stockholm,Sweden,May 27 28,1998:167 174.
[4]Yamamoto Y,Otaka T,Ito H.Successful manufacturingand shop testing of world’s largest tandem2-hole,60Hz,1,000MW turbine generator(C).IEEE,USA.2001:13931398
[5]刘建生,陈慧琴,郭会光.护环扩挤复合成形新工艺的模拟研究[J].机械工程学报,1998,34(1):21 26.
[6]陈慧琴.护环扩挤复合成形新工艺的模拟研究[D].太原:太原重型机械学院,1997.
[7]杨超操,刘建生,陈慧琴,等.Mn18Cr18N钢护环热成形新工艺数值模拟的研究[J].大型铸锻件,2004,105(3):5 7.

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