Transactions of Materials and Heat Treatment

Title：Study on bottom compression-drawing of boss deforming on plate

Authors： LIN Qi-quan ZHANG Xue-bing WANG Zhen-qiu

Unit： Xiangtan University

KeyWords： boss deforming bottom compression-drawing numerical simulation Deform-3D

ClassificationCode：TG386

year,vol(issue):pagenumber：2010,35(6):53-57

Abstract：

Bottom compression-drawing was introduced for boss deforming as a new processing method. Numerical simulation of boss deforming on the thin plate was made by means of finite element software Deform-3D. The affect of initial plate thickness, friction and backpressure on the load and boss height was analysed. The simulation result shows that the initial thickness, friction and back pressure have significant influence on the processing load and boss height; while the initial plate becomes thicker, the ultimate value of boss height increases and shrinkage defects reduces. As the friction coefficient decreases, the ultimate value of boss height increases and shrinkage defects occurres easily. The larger the backpressure is, the bigger the ultimate value of boss height and the less shrinkage defects will be. Shrinkage defects can be avoided if the parameters are appropriately chosen.

Funds：

湖南省科技厅项目（2009WK3045）

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