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Abstract：
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Aiming at the complex bulging skin with complex curvature, poor manufacturability and high processing difficulty, for the bulging skin of an aircraft wheel cabin web, the structural characteristics and forming difficulties of parts were analyzed. Then, the mold profile design, processing characteristics, processing route, advantages and disadvantages of the three forming technologies of drop hammer forming, stretching + drop hammer forming and stretching were researched by theoretical analysis and finite element simulation analysis technology. And it is concluded that the stretching can replace drop hammer forming and improve forming quality of parts, save tooling and shorten production cycle. Furthermore, through the method of repairing the local profile of mold, the defects of local area dead wrinkles and non-sticking of mold during the on-site stretching test of parts were solved. The results show that the defects of complex bulging skin produced in the process of stretching is solved by the improvement of mold design and process parameters to provide a solution for the forming of similar complex bulging parts.
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Funds：
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AuthorIntro：
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陈根发（1991-），男，学士，工程师，E-mail：cgfbeijing2009@163.com
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Reference：
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[1]《航空制造工程手册》总编委会.航空制造工程手册：飞机工艺装备[M].北京：航空工业出版杜，1994.
Aeronautics Manufacture Engineering Manual Compilation Group. Aeronautics Manufacture Engineering Manual：Aircraft Processing Tools [M].Beijing：Aviation Industry Press，1994.
[2]王燕齐，程永奇，张鹏,等. 板料先进成形工艺研究现状与发展趋势[J].热加工工艺，2018,47(7):5-10.
Wang Y Q, Cheng Y Q, Zhang P, et al. Research status and development trend of advanced sheet forming technology [J]. Hot Working Technology, 2018, 47(7):5-10.
[3]成靖,李晓军,曾一畔, 等.复杂钣金航空构件冲压成形的研究与应用[J].锻压技术, 2018,43(12):25-29.
Cheng J, Li X J, Zeng Y P, et al. Research and application of stamping forming for complex sheet metal parts in aviation industry[J]. Forging ＆ Stamping Technology, 2018,43(12):25-29.
[4]王强,吴建军,张深,等.蒙皮拉伸成形装备及其数值模拟研究[J].航空制造技术, 2014, 57 (10): 55-60.
Wang Q, Wu J J，Zhang S, et al. Research on skin stretch-forming equipments and numerical simulation technology[J]. Aeronautical Manufacturing Technology, 2014, 57(10): 55-60.
[5]唐涛,李志强,门向南,等.航空大型复杂蒙皮的拉伸成形技术[J]. 锻压技术, 2019 ,44(7):57-61.
Tang T, Li Z Q, Men X N,et al. Stretch-forming technology of aviation large and complexd skin[J]. Forging ＆ Stamping Technology, 2019 ,44(7):57-61.
[6]顾伟, 伍惠, 金海霞, 等. 双曲度蒙皮纵向拉形过程模拟技术研究[J]. 精密成形工程, 2015, 7(4):57-61, 75.
Gu W, Wu H, Jin H X, et al. Numerical simulation technique of longitude stretch process on double-curved skin[J]. Journal of Netshape Forming Engineering,2015,7(4):57-61,75.
[7]文松涛,曾斌,汪洋华,等.大型飞机机身双曲度蒙皮纵向拉伸成形加载优化设计与试验研究[J].精密成形工程, 2014, 6(6): 88-93.
Wen S T, Zeng B, Wang Y H, et al. Optimization design and experimental study on loading path of longitude stretch forming for double-curved fuselage skin of large aircraft[J]. Journal of Netshape Forming Engineering,2014,6(6):88-93.
[8]王晓欣,曾一畔, 陈林,等.复杂曲率蒙皮零件拉形工艺分析及优化[J].锻压技术,2018,43(9):88-92.
Wang X X, Zeng Y P, Chen L ,et al. Process analysis and optimization on stretch forming of complex curvature skin part
[J]. Forging ＆ Stamping Technology, 2018, 43(9):88-92.
[9]张彦敏, 周贤宾. 飞机蒙皮拉伸成形工艺参数优化[J]. 航空学报, 2006, 27(6):1203-1208.
Zhan Y M, Zhou X B. Parameter optimization in aircraft skin stretch forming process[J]. Acta Aeronautica et Astronautica Sinica, 2006, 27(6):1203-1208.
[10]张晓静.复杂蒙皮拉形过程有限元数值模拟技术研究[D].北京:北京航空航天大学,2000.
Zhang X J. The Research on Finite Element Numerical Simulation of Skin Stretch Forming Processes[D]. Beijing: Beihang University, 2000.
[11]李云鹏. 复杂飞机蒙皮拉伸成形模具设计方法分析[J]. 科技创新与应用, 2017, (22):91-92.
Li Y P. Analysis on design method of drawing die for complex airplane skin[J]. Technology Innovation and Application, 2017, (22):91-92.
[12]崔琳, 王海强. 蒙皮拉伸成形通用上盖结构研究[J]. 军民两用技术与产品, 2017, (6): 10, 36.
Cui L, Wang H Q. Study on structure of universal upper cover in skin drawing[J]. Dual Use Technologies & Products, 2017, (6): 10, 36.
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