Transactions of Materials and Heat Treatment

Title：Design optimization for warm forming process of engine shell of high strength steel

Authors： YU Jian-min1 ZHANG Zhi-min1 ZHAO Long2(1.Engineering Technology Research Center of Integrated Precision Forming North University of China Taiyuan 030051 China 2.Xinzhou General Machinery Limited Company Xinzhou 034000 China)

Unit：

KeyWords： 45CrNiMo1VA warm extrusion equivalent strain finite element simulation

ClassificationCode：TG376

year,vol(issue):pagenumber：2009,34(1):80-83

Abstract：

Aiming at the deformation uneven problems of the engine shell in the production process,the forming process was numerical simulated to optimize the forming process parameters and improve the forming die structure and contrast the two forming plans of plastic deformation and extrusion forming force.Finally,the experimental verification was done.The results show that improving technology can solve the deformation of inclined step,reduce the forming force and greatly increase the die life.Thus production volume was increased from 150 pieces to a thousand level.The production cost is reduced and it has important guiding significance to actual production.

Funds：

Reference：

[1]张祖贤,邢安定,汪熹,等.兵器黑色金属材料手册:上[M].北京:兵器工业出版社,1995.
[2]吴诗淳.冷温挤压[M].西安:西北工业大学出版社,1991.
[3]刘静安.金属挤压成形理论与技术发展的现状与趋势[J].铝加工,2000,23(5):1-8.
[4]刘雅政.材料成形理论基础[M].北京:国防工业出版社,2004.
[5]董湘怀.材料成形计算机模拟[M].北京:机械工业出版社,2005.
[6]Nielsen L S,Lassen S.Development of a flexible tool systemfor small quantity production in cold forging[J].Journal ofMaterials Processing Technology,1997,71(1):36-40.
[7]Campbell J D,Ferguson W G.The temperature and strain-rate dependence of the shear strength of mild steel[J].Phil.Mag.,1970,21(169):63-67.
[8]杨长顺.冷挤压模具设计[M].北京:国防工业出版社,1994.
[9]古恩ГЯ.金属压力加工理论基础[M].北京:冶金工业出版社,1989.
[10]斯德洛日夫M B,波波夫E A.金属压力加工原理[M].北京:机械工业出版社,1980.
[11]王占学.塑性加工金属学[M].北京:冶金工业出版社,2003.

Service：

【This site has not yet opened Download Service】【Add Favorite】