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Research on rotary forming mechanism of cartridge bottom by FEM
作者姓名:刘钢  姚雄亮  黄少东  唐全波
作者单位:Dept. of Ship and Ocean Engineering,Harbin Engineering University,College of Materials and Engineering,Harbin Institute of Technology,The 59th Institute of Enginery Industry,The 59th Institute of Enginery Industry Harbin 150001,China,College of Materials and Engineering,Harbin Institute of Technology,Harbin 150001,China,Harbin 150001,China,Chongqing 630000,China,Chongqing 630000,China
基金项目:theFoundationofHarbinInstituteofTechnology( 1999)
摘    要:0 INTRODUCTIONCartridgebottomisadiskwithaholerightinthemiddleasshowninFig .1,whichcanbemanufac turedbyrotaryforgingfromaringbillet .Thiskindofpartisusuallyformedbyhotforgingorextrudingfromacylinderbilletandthenboringatthecenter .Theconventionalprocessneed…


Research on rotary forming mechanism of cartridge bottom by FEM
LIU Gang ,YAO Xiong liang ,HUANG Shao dong ,TANG Quan bo.Research on rotary forming mechanism of cartridge bottom by FEM[J].Journal of Harbin Institute of Technology,2003,10(1).
Authors:LIU Gang    YAO Xiong liang  HUANG Shao dong  TANG Quan bo
Affiliation:1. Dept. of Ship and Ocean Engineering, Harbin Engineering University, Harbin 150001, China;College of Materials and Engineering, Harbin Institute of Technology, Harbin 150001, China
2. College of Materials and Engineering, Harbin Institute of Technology, Harbin 150001, China
3. The 59th Institute of Enginery Industry, Chongqing 630000, China
Abstract:The rotary forging of a cartridge bottom is simulated by finite element method with DEFORM TM . The analysis of stress and strain rate results indicates that the deformation conditions and the final geometry of a product are not completely axis symmetrical under the partial loading conditions during the rotary forging operations. It is therefore required to have a few more rotary forging cycles at the end of total feeding to eliminate nonuniformity. The results of simulation show that the optimization of rotary forging process conditions can be achieved to avoid the underfill defect resulting from improper process conditions. This technology can be used to manufacture ring components with thin bottoms by properly controlling the working process and the tooling motion.
Keywords:rotary forging  cartridge bottom  finite element analysis
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