Transactions of Materials and Heat Treatment

Title：Analysis on forming laws and die design for the machine plate of pushed mower

Authors： Cui Baiwei Cheng Shan Wang Guoliang

Unit： Changzhou Institute of Mechatronic Technology

KeyWords： machine plate of pushed mower drawing metal flow die drawbead

ClassificationCode：TG385.2

year,vol(issue):pagenumber：2016,41(11):77-81

Abstract：

For the drawing of the machine plate，the law of metal flow in the process of drawing was analyzed by numerical simulation，and the potential problems and defects were predicted. Then, the analysis on the mechanical characteristics of the defects was carried out through the entire drawing process by amending die radius and arranging segmented drawbead. Furthermore, the processing and the die parameters were improved，and the drawing technology parameters of the parts were determined with the height of the drawbeads 5 mm from 1 to 5 segments and 3 mm from 6 to 9 segments, blank holder force 150 kN. Therefore, the drawing dies of pushed mower machine plate were designed. Finally，the qualified drawing parts were manufactured by drawing tests without crack and with wrinkling area controlled within the flange area，and the maximum thinning rate is less than 25%.

Funds：

江苏省三新工程项目（NJ2013-04）；江苏高校品牌专业建设工程资助项目（PPZY2015B187）

崔柏伟（1966-），男，学士，高级工程师，副教授

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