陈国清

个人信息Personal Information

教授

博士生导师

硕士生导师

主要任职:材料科学与工程学院副院长

性别:男

毕业院校:哈尔滨工业大学

学位:博士

所在单位:材料科学与工程学院

办公地点:铸造中心208

联系方式:0411-84707970

电子邮箱:gqchen@dlut.edu.cn

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Research on superplastic forming of supplied LY12 aluminum alloy for fishing spools

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论文类型:会议论文

发表时间:2007-01-01

收录刊物:CPCI-S

卷号:551-552

页面范围:245-+

关键字:supplied LY12 alloy; dynamic recrystallization; superplastic forming; die

摘要:The superplasticity of LY12 alloy was reviewed in this paper. Complex component was extruded by taking advantage of the superplasticity Of Supplied LY12 alloy. The research demonstrates that in isothermal compression process dynamic recrystallization may occur in supplied LY12 alloy. In superplastic forming test grain refinement was combined with initial extrusion step utilizing dynamic recrystallization to complete grain refinement, which ensured the superplasticity in supplied LY12. In the early stage of extrusion, using high deformation speed and large amount of deformation can result in grain refinement, which primarily satisfied the demand of the superplasticity. In the final stage, the forming speed decreased sharply so that the optimum strain rate was satisfied and the complicated component can be extruded successfully. The resulted product has reasonable flowing traces, which improves its service performance.