Transactions of Materials and Heat Treatment

Title：Finite element analysis of heavy forging processing with JTS method

Authors： LIAO Pei-gen~1 FANG Gang~1 LEI Li-ping~1 ZENG Pan~1 DU Feng-shan~2 1.Department of Mechanical Engineering Tsinghua University Beijing 100084 China 2.School of Mechanical & Electronic Engineering Yanshan University Qinghuangdao 066004 China

Unit：

KeyWords： heavy forging Japan-Tefeno-Shikano(JTS)method finite element analysis forging

ClassificationCode：TG316

year,vol(issue):pagenumber：2007,32(6):43-46

Abstract：

Japan-Tefeno-Shikano method is considered as an effective method of improving the qualities of heavy forg- ings.But the effect of temperature gradient on strain and stress in the forging is not understood fully.So it is difficult to control the temperature gradient and the cooling parameters in forging process.The experimental research for heavy forging is limited due to the single-piece producing and large costs.The numerical simulation is alternation method for studying metal forming.The characters of the temperature field and the filed of the strain and stress were calculated by rigid-plastic finite element method.The effects of temperature gradient on the forgeability of heavy forging were ana- lyzed.The results show that the temperature gradient has important effects on strain and stress of forging.The effec- tive strain and the hydrostatic stress in the centre of forging increase with the increasing of the temperature gradient, which contributes to eliminating the cavity.The simulation results and its parameters can be applied in actual manufac- ture.

Funds：

国家自然科学基金重点资助项目(50435010)

Reference：

[1]王雷刚，黄瑶，刘助柏．大锻件拔长工艺研究进展与展望[J]．塑性工程学报，2002，9(2)：28-31．
[2]王仲仁主编．锻造手册(第一卷)[M]．机械工业出版社，1993．
[3]中国机械工程学会锻压分会编．锻压手册(第一卷，第二版)[M]．北京：机械工业出版社，2002．
[4]杜凤山，于辉，郭振宇．板带热轧工作辊温度场的研究[J]．塑性工程学报，2005，12(2)：78-81．
[5]杨世铭，陶文铨．传热学(第三版)[M]．北京：高等教育出版杜，1998．

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