摘要
针对大型民用客机中复合材料零件的制造工艺,提出了一套基于叠层滑移工艺的复合材料骨架类零件自动化制造技术,利用叠层滑移工艺在将平面预形体变形成带圆角的立体预形体过程中没有褶皱的特点,形成了叠层滑移工艺制备复合材料J形和C形梁立体预形体的具体工艺方法。对于采用该技术制造的复合材料J形梁和C形梁,开展了内部缺陷、厚度和外观等常规检查,检查结果满足设计的要求;采用剖切的方法对制件的纤维面外褶皱进行检查,结果表明不同位置的截面厚度一致,厚度均匀,在圆角处铺层走向稳定,无纤维褶皱;采用逐层打磨的方法对制件的纤维面内弯曲进行检查,结果表明铺层中纤维准直,没有弯曲和开裂的情况。以上研究表明,与传统的手工铺叠工艺比较,基于叠层滑移工艺的复合材料J形和C形骨架零件自动化制造技术的工艺稳定性好、质量一致性高、成本较低,适合自动化批量生产。
Aiming at the manufacturing process of composite material parts in large commercial aircraft,a series of automatic manufacturing technology of composite material frame parts based on the laminated slip is proposed.The laminated slip process is used to transform the flat blank into a three-dimensional blank with rounded corners.There is no wrinkle in the process,and a specific process method for preparing the composite material J-shaped and Cshaped beam three-dimensional preform is formed.For composite J-beams and C-beams manufactured with this technology,routine inspections such as internal defects,thickness and appearance were carried out,and the inspection results meet the design requirements.The method of sectioning was used to check the out-of-plane fiber wrinkle of the parts.The results shows that the thickness of the cross-sections at different positions is the same and the thickness is uniform.The pavement at the rounded corners is stable and no fiber folds exist.The layer-by-layer peeling off is used to check the fiber in-plane distortion of the parts and the results shows that the fibers in the layup are collimated without distortion or cracking.The above research shows that,compared with the traditional manual layup process,the automatic manufacturing technology of composite material J-shaped and C-shaped skeleton parts based on the laminated slip process has good process stability,high quality consistency,low cost,and is suitable for automated batch production.
作者
薛向晨
胡江波
王犇
曹正华
郑晓玲
孟庆功
梁宪珠
Xue Xiangchen;Hu Jiangbo;Wang Ben;Cao Zhenghua;Zheng Xiaoling;Meng Qinggong;Liang Xianzhu(AVIC Composite Corporation Ltd.,Beijing 101300,China;Shanghai Aircraft Design and Research Institute,Shanghai 200436,China)
出处
《航空科学技术》
2020年第6期27-34,共8页
Aeronautical Science & Technology
关键词
复合材料
J形梁
C形梁
叠层滑移
褶皱
纤维屈曲
自动化
composites
J-section beam
C-section beam
laminated sliding
wrinkle
distortion
automation
