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《Forging & Stamping Technology》 2008-01
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Optimization design for warm and cold combined deformation of complex support part

ZHAO Zu-de,KANG Feng,HU Chuan-kai,LIU Chuan-lin(No.59 Research Institute of China Ordnance Industry,Chongqing 400039,China)  
Warm and cold combined deformation is an advanced technique which has the advantages of high efficiency,high quality,low cost and saving raw materials and man-hours.The characteristics of the deformation of the complex abnormal part with complex shape and high side accuracy requirement were analyzed.The optimization design of preformed billet was made with the method of finite element simulation to overcome the common deficiency during the forming.Validated with the experiment,the effect of the supporting forging is good,the roughness of surface reaches Ra1.6~Ra3.2 and the dimensional accuracy is IT11~IT12.The metallurgical structure shows that the structure of forging is uniform and tiny without evident defects.This result can meet all requirements of the part and this technique can be broadly applied in the future.
【CateGory Index】: TG316
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