锻压技术

基于Dynaform的飞机封严板压窝成形工艺分析与优化设计

英文标题：Analysis and optimal design on press dimple forming process for aircraft seal plate based on Dynaform

作者：成骏阚小如陶义建

单位：航空工业成都飞机工业(集团)有限责任公司空军装备部驻成都地区第一军事代表室

关键词：封严板压窝成形起皱敲窝成形 Dynaform

分类号：TG386.1

出版年,卷(期):页码：2021,46(1):37-42

摘要：

飞机封严板在敲制成形沉头窝孔后，表面出现不同程度的起皱变形问题，且难以消除。采用非线性有限元分析软件Dynaform对飞机封严板窝孔成形过程进行数值模拟。经研究分析发现，成形过程中由于封严板没有压边支撑，且成形方式过于粗糙剧烈，导致封严板起皱变形。针对这些问题制定了相应措施，改变以往的敲窝成形方法，发明了一种气动压窝器，并运用CATIA软件DMU模块运动机构仿真方法进行机构优化设计，设置压料板用来限制封严板在凸缘区域的变形。最后，通过实际生产结果表明，在改进措施实施后，封严板大面积起皱变形现象得到了消除，表面质量得到了大幅度提升，从而保证了飞机在飞行过程中的气动性能及隐身性能。

After the dimples in aircraft seal plate are knocked, the surface of aircraft seal plate has different degrees of wrinkle and deformation, which is difficult to eliminate. Therefore, the dimple forming process of aircraft seal plate was simulated by nonlinear finite element analysis software Dynaform. The results show that during the forming process, the seal plate has no blank holder to support and the forming method is too rough and severe, which causes the seal plate to wrinkle and deform. In view of these issues, the corresponding measures were made to change the previous knock dimple forming method, and a pneumatic press dimple device was invented. Furthermore, the optimization design on mechanism was conducted by DMU module motion mechanism simulation method in software CATIA, and the blank holder plate was set up to limit the deformation of seal plate in flange area. Finally, the actual production results show that after the implementation of the improvement methods, the large-area wrinkle deformation of seal plate is eliminated, and the surface quality is greatly improved. Thus, the aerodynamic performance and stealth performance of aircraft during the flight are ensured.

基金项目：

基金项目:四川省重点研发项目（2018GZ0063）

作者简介：成骏（1990-），男，学士，工程师 E-mail：chengj016@avic.com

参考文献：

[1]龚红英. 板料冲压成形CAE实用教程[M].北京: 化学工业出版社，2010.

Gong H Y. Practical Course in CAE of Sheet Metal Forming[M].Beijing: Chemical Industry Press，2010.

[2]龚红英，刘克素，董万鹏，等. 金属塑性成形CAE应用: DYNAFORM[M].北京:化学工业出版社，2015.

Gong H Y，Liu K S，Dong W P，et al. CAE Application of Metal Plastic Forming[M].Beijing: Chemical Industry Press，2015.

[3]刘添乐，马云龙，黄嘉蕾，等. 新型超高强铝锂合金厚板厚度方向组织及性能的不均匀性[J]. 稀有金属，2020，44(8): 785-791.

Liu T L, Ma Y L, Huang J L, et al.Throughthickness inhomogeneity of structures and tensile property in a novel superhigh strength AlLi alloy thick plate [J]. Chinese Journal of Rare Metals，2020，44(8): 785-791.

[4]马云龙，林小红，刘丹阳，等. 两种铝锂合金薄板析出相及动静态性能比较[J]. 稀有金属，2019，43(7): 673-678.

Ma Y L, Lin X H, Liu D Y, et al.Aging precipitates，static and dynamic performance of two AlLi alloy sheets [J]. Chinese Journal of Rare Metals，2019，43(7): 673-678.

[5]包友霞，徐伟力，刘罡，等. 薄板成形中变压边力优化设计方法[J].机械工程学报, 2001, 37(2): 105-109.

Bao Y X, Xu W L, Liu G, et al. Optimizationdesign variable blank holder force in sheet metalforming[J]. Journal of Mechanical Engineer, 2001, 37(2): 105-109.

[6]范泽. 冲压速度对板料成形性能的影响研究[D].合肥: 合肥工业大学, 2015.

Fan Z. Study of the Effect of Punch Speed on Sheet Metalforming [D].Hefei: Hefei University of Technology, 2015.

[7]张跃，葛启月，辛梓阳，等. 基于Dynaform的纬纱板成形过程模拟及正交分析[J].热加工工艺，2015，44(23):175-178.

Zhang Y, Ge Q Y, Xin Z Y, et al. Simulation and orthogonal analysis on forming process of vesa plate based on dynaform[J].Hot Working Technology，2015，44(23): 175-178.

[8]胡志华，王卫生，金建晨. 基于 Autoform 的铝合金引擎盖成形模拟及优化[J]. 模具工业，2017，43(12): 10-13.

Hu Z L, Wang W S, Jin J C. Simulation and engine cover optimization of forming die with aluminum alloy based automobile Autoform[J].Die ＆ Mould Industry，2017，43(12): 10-13.

[9]陈根发，方继钊，王勇，等.复杂鼓包蒙皮成形技术分析与优化[J].锻压技术，2020，45(8): 82-87.

Chen G F, Fang J Z, Wang Y, et al. Analysis and optimization on complex bulging skin forming technology [J].Forging ＆ Stamping Technology，2020，45 (8):82-87.

[10]管艳杰. 汽车覆盖件冲压成形工艺数值模拟及优化[D].太原: 太原科技大学，2012.

Guan Y J. Numerical Simulation and Optimization of Stamping Forming Process for Automobile Panels[D].Taiyuan: Taiyuan University of Science ＆ Technology，2012.

[11]刘威，林再新，桂珍珍，等. 汽车前地板纵梁成形数值模拟[J].热加工工艺，2013，42(17): 101-103.

Liu W，Lin Z X，Gui Z Z，et al. Numerical simulation on forming longitudinal beam of automobile front floor[J].Hot Working Technology，2013，42(17): 101-103.

[12]徐肖，黄涛，王震.基于CAE的典型前围板下横梁冲压成形工艺[J].锻压技术，2019，44 (8): 26-34.

Xu X, Huang T, Wang Z. Stamping process of typical front beam connecting part based on CAE [J]. Forging ＆ Stamping Technology，2019，44 (8): 26-34.

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