Transactions of Materials and Heat Treatment

Title：Protective flow-guided porthole die structure for semi-hollow Al-profiles

Authors： Deng Rurong Huang Xuemei Huang Cuiting Xia Qinxiang

Unit： Guangzhou Vocational College of Science and Technology South China University of Technology

KeyWords： semi-hollow Al-profiles flow-guided porthole die strength check

ClassificationCode：TG376

year,vol(issue):pagenumber：2017,42(12):118-122

Abstract：

The research status of extrusion die on the semi-hollow Al-profiles was described, and its five die structures were analyzed including the integral flat die, the mosaic porthole die, the

covering porthole die, the porthole die with a suspended cantilever and the cutting porthole die. Then, a new protective flow-guided porthole die structure for the semi-hollow Al-profiles was presented by a practical example, and the die structure named protective flow-guided extrusion die was introduced. Furthermore, the composition of structure and selection of parameters were analyzed in detail, mainly including the design of portholes, selection of extrusion machine, structure of prothole bridge, selection of stress gap and bearing, and the method about how to check die strength was introduced. According to the extrusion result, the structures of traditional flat die and mosaic porthale die were compared to the new one. The results show that the new structure is simpler and easier to process which can improve the strength and prolong the life of die.

Funds：

广东省教育研究院“三元融合，五年贯通”中高职衔接实践研究项目（GDJY2015Ba004）；2017年广东大学生科技创新培育专项资金项目(广东省团委“攀登计划”专项资金，pdjh2017b0867)；2016年广州科技职业技术学院资助科研项目（2016TD01,2016ZR14）

作者简介：邓汝荣（1964-），男，学士，高级工程师 E-mail：sqf6410@163.com

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