锻压技术

航空复杂钣金构件冲压成形的研究与应用

英文标题：Research and application of stamping forming for complex sheet metal parts in aviation industry

分类号：TG38

出版年,卷(期):页码：2018,43(12):25-29

摘要：

目前,航空复杂钣金构件多以落压成形或基于落压的复合成形工艺加工，零件质量不稳定，生产效率低下。为了改善此种情况，以某机型双曲度带加强槽的口框零件为研究对象，根据压边圈及冲压毛坯料形状的不同，制定了3种冲压成形方案。利用有限元模拟软件对每种方案进行了分析及参数优化，最终确定了型面压边圈带孔板料成形的加工方案。设计了相应的成形工装，并通过试验件加工与模具局部修整，使得成形零件表面质量和外形尺寸达到交付要求，最终实现了零件的批量生产和交付，为同类零件生产工艺的优化及传统工艺的转型提供了重要的参考。

The complex sheet metal parts in aviation industry are mostly processed by drop forming or compound forming technology based on drop forming, so the quality of parts is unstable and the production efficiency is low. In order to improve the above situations, for the double curvature mouth frame parts with reinforcing groove of a type of airplane model, three stamping schemes were designed based on the different shapes of blank holder and blank. Then, each scheme was analyzed and optimized by finite element simulation software, and the processing scheme of curved surface blank holder forming with perforated sheet was determined finally. Furthermore, the corresponding forming tooling was designed, and the surface quality and the external dimensions of formed part met the delivery requirements by the processing of test piece and the partial trimming of die. At last, the mass production and delivery of parts were realized, and an important reference was provided for the optimization of the production process for similar parts and the transformation of traditional process.

基金项目：

基金项目:四川省重点研发项目（2018GZ0063）

作者简介：成靖（1991-），男，硕士，工程师 Email：chengjing_ustb@163.com

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