Transactions of Materials and Heat Treatment

Title：A protection type of porthole die structure for semi-hollow aluminum profiles

Authors： Deng Rurong Huang Xuemei

Unit： Guangzhou Vocational College of Science and Technology

KeyWords： aluminum profile semi-hollow protective porthole die

ClassificationCode：

year,vol(issue):pagenumber：2016,41(7):87-90

Abstract：

A judging method of semi-hollow profiles was introduced，and a new protective porthole die structure fitting for semi-hollow profiles was put forward and its design process was analyzed. The selection method of design parameters was introduced, mainly including the layout of portholes， the determination of die core structure and feeder type， the position and size of the wall thickness compensation, the welding chamber structure design, and the selection of bearing. According to the extrusion results， the structures of the traditional planed die and the new protective porthole die were compared, and the characteristics of the latter structure were simple and easy to process. The practical application shows that the die structure can enhance the strength and prolong the life of the die. And the life is 10 times more than that of the traditional planed die, and the quality of the products is improved apparently. Furthermore, the high precision and the surface brightness of the profiles are obtained， and the uneven wall thickness is eliminated.

Funds：

广东省高等职业技术教育研究会一般课题（GDGZ15Y084）;2016年广东大学生科技创新培育专项资金项目（“攀登计划”专项资金，pdjh2016b0865)

邓汝荣（１９６４－），男，学士，高级工程师

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