多点柔性旋压成形蝶形曲面件的成形精度分析  

Forming accuracy analysis on disc-shape curved parts formed by multi-point flexible spinning

作　　者：兰英武 张国桢 陈德勇 蔡中义[2] 胡松景 LAN Ying-wu;ZHANG Guo-zhen;CHEN De-yong;CAI Zhong-yi;HU Song-jing(Henan Derry New Energy Automobile Co.,Ltd.,Anyang 455000,China;Institute of Roll Forging Technology,Jilin University,Changchun 130022,China;Great Wall Motor Company Limited,Baoding 071000,China)

机构地区：[1]河南德力新能源汽车有限公司,河南安阳455000 [2]吉林大学辊锻工艺研究所,吉林长春130022 [3]长城汽车股份有限公司,河北保定071000

出　　处：《塑性工程学报》2021年第10期107-112,共6页Journal of Plasticity Engineering

基　　金：国家自然科学基金资助项目(51075186);国家863计划项目(2009AA04Z117)。

摘　　要：为了满足小批量、多样化和个性化的金属板料蝶形曲面件的市场需求,研发了一种新的柔性成形工艺———多点柔性旋压成形工艺。该工艺采用2组柔性辊作为成形工具,柔性辊组可通过相应的驱动系统提供动力,使其能绕自身轴线旋转,并可通过相应的调形装置调整成多种不同的轴线弯曲形状,成形多种类型的蝶形曲面件。阐述了多点柔性旋压成形的基本原理及实验装置,进行了不同材质蝶形曲面件的成形实验,分析了实验件的成形精度及厚度变化规律。结果表明,实验件具有良好的精度,其成形曲面与所需曲面形状吻合良好,验证了多点柔性工艺的有效性及可靠性。To meet the market demand for small batch of sheet metal disc-shape curved parts with diversified and personalized characteristics,a new flexible forming process,termed as multi-point flexible spinning forming process,was developed.Two groups of flexible rollers as forming tools were employed for this process.Different flexible rollers were driven by different motors and can rotate around their own axes.The flexible roller can be adjusted to different bending shapes by corresponding adjusting mechanism,and then the disc-shape curved parts with different shapes can be formed.The basic principle and experimental device of multi-point flexible spinning forming were described,and the forming experiments of disc-shape curved parts with different materials were preformed.The forming accuracy and thickness variation of disc-shape curved parts were analyzed.The results show that the disc-shape curved parts have good precision and the formed surfaces are in good agreement with the required surface shape,which verifies the validity and reliability of multi-point flexible spinning process.

关 键 词：多点成形 柔性成形 旋压成形 柔性辊 成形精度 

分 类 号：TG306[金属学及工艺—金属压力加工]