Transactions of Materials and Heat Treatment

Title：Influence law of different edge on forming quality of progressive deep drawing for micro motor shell

Authors： Huang Zhenyuan Chen Jingmao Wei Wanzhu Xie Jiana Chen Minsheng

Unit： School of Mechanical and Automotive Engineering South China University of Technology Jieyang Huibaochang Electrical Appliance Co. Ltd.

KeyWords： micro motor shell flexible edge multi-pass deep drawing layout material utilization rate

ClassificationCode：TG386.3

year,vol(issue):pagenumber：2022,47(11):95-100

Abstract：

For a micro motor shell, a process scheme of progressive stamping was designed, which was a new type of flexible edge structure that was deformed first and then stretched, and the multi-pass deep drawing process of micro motor shell was simulated and analyzed by software. Then, according to material utilization rate, average edge thickness, maximum thinning rate and change trend of wall thickness and other indicators, the influences of flexible edge structure and traditional edge structure on the micro motor shell products were compared, and the influence laws of the different edge forms on the wall thickness of product during the progressive deep drawing process were obtained. The theoretical analysis and actual production results show that in the production process, the edge of scrap cutting type is directly stretched, and the connection between edge and process part is prone to tearing. While the flexible edge is deformed first and then stretched, the thinning rate is extremely small and the safety is relatively high. In addition, compared with the traditional edge structure, the new type of flexible edge structure has higher stability in the progressive deep drawing, better material fluidity, higher wall thickness uniformity and higher material utilization rate, and the maximum thinning rate of material is only second to the edge of slit type.

Funds：

2020年广东省科技大专项目揭阳专项（x2jq-B8210180）

作者简介：黄珍媛（1975-），女，博士，副教授，E-mail：zhenyuan@scut.edu.cn；通信作者：陈景茂（1999-），男，硕士研究生，E-mail：1427658768@qq.com

Reference：

[1]严培霞,刘世群.圆形拉伸件无搭边排样冲压工艺[J].科技创业家,2013,(5):80.

Yan P X,Liu S Q.Stamping process of circular drawing parts without edges[J]. Technological Pioneers, 2013,(5):80.

[2]胡成武，李光，毛远征，等.圆筒形件的拉深变形与应力分析[J].塑性工程学报，2020，27（3）：130-136.

Hu C W，Li G，Mao Y Z，et al. Stress analysis and deformation of deep drawing for cylindrical part [J].Journal of Plasticity Engineering，2020，27（3）：130-136.

[3]黎敏绯,周国荣.谈多工位级进模冲压件的排样与搭边技术[J].职业技术,2007，(8):146.

Li M F, Zhou G R. The layout and edging technology of multi-station progressive die stamping parts are discussed[J]. Vocational Technology,2007，(8):146.

[4]曹立生.少无废料冲裁在电机零件生产中的应用[J].模具工业,2007，33(9):31-33.

Cao L S. Application of no-waste blanking in manufacture of electric motor component[J]. Die & Mould Industry, 2007，33(9):31-33.

[5]鲁建平.壳体零件多工位拉深级进模设计[J].模具工业,2016,42(8):26-30.

Lu J P.Design of multi-station drawing progressive die for shell part[J]. Die & Mould Industry, 2016,42(8):26-30.

[6]徐自明.薄壁深筒矩形件冲压工艺及级进模设计[J].模具技术,2011，(1):14-17.

Xu Z M. Stamping process and design of progressive die for rectangular parts with thin wall deep cylinder [J].Tool and Die Technology,2011，(1):14-17.

[7]何凌,邓汝荣,黄雪梅.阶梯长圆盒形件拉深级进模设计[J].模具工业,2018,44(1):22-25.

He L,Deng R R,Huang X M. Drawing progressive die design of step long-roll rectangular box[J]. Die & Mould Industry,2018,44(1):22-25.

[8]吴良周,龙智雄,赵成寅,等.方形罩壳成形工艺与模具设计[J].模具工业,2019,45(11):9-14.

Wu L Z,Long Z X,Zhao C Y,et al. Forming process of square enclosure and the die design [J].Die & Mould Industry, 2019,45(11):9-14.

[9]杨晓龙,刘莎莎,王栓强.薄壁零件成形工艺与模具设计[J].模具工业,2014,40(6):36-38.

Yang X L,Liu S S,Wang S Q. Forming process and design of die for thin-walled part [J]. Die & Mould Industry,2014,40(6):36-38.

[10]虞婕华,黄幸.拉伸件制造工艺及复合模设计[J].模具制造,2020,20(6):28-29.

Yu J H,Huang X. Manufacturing technology of drawing parts and design of compound die [J]. Die & Mould Manufacture,2020,20(6):28-29.

[11]仇建桐，邓沛然，邵威，等. 6061铝合金热拉深成形研究[J].塑性工程学报,2020,27(9):124-131.

Qiu J T, Deng P R, Shao W,et al. Study on hot deep drawing of 6061 aluminum alloy [J].Journal of Plasticity Engineering,2020,27(9):124-131.

[12]刘志良.高矩形罩壳拉深成形工艺改进[J].模具工业,2016,42(8):31-34，41.

Liu Z L. Improvement of drawing process for high rectangle cover [J].Die & Mould Industry,2016,42(8):31-34，41.

[13]赖辉.冲裁工艺中对材料的充分利用及搭边值的优化[J].制造业自动化,2011,33(23):44-46.

Lai H. Fully use materials by blanking and optimization of overlapping value [J]. Manufacturing Automation, 2011,33(23):44-46.

[14]张成浩.不锈钢外壳拉深成形工艺设计与改进措施[J].模具工业,2015,41(1):35-38.

Zhang C H.Drawing forming process design and improvement measures of stainless steel shell [J]. Die & Mould Industry,2015,41(1):35-38.

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