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《Forging & Stamping Technology》 2007-06
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Finite element analysis of heavy forging processing with JTS method

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  
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.
【Fund】: 国家自然科学基金重点资助项目(50435010)
【CateGory Index】: TG316
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