当前位置: X-MOL 学术Appl. Compos. Mater. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
An Investigation into Process Parameters Effect on the Formability of GLARE Materials Using Stamp Forming
Applied Composite Materials ( IF 2.3 ) Pub Date : 2019-11-21 , DOI: 10.1007/s10443-019-09788-0
Hamza Blala , Lihui Lang , Ehsan Sherkatghanad , Lei Li

The use of laminates allows an optimization of the material properties, these hybrid materials can unravel some problems in the industrial sector, particularly in aerospace, and advanced automotive industry. Fiber Metal Laminates (FMLs) can be produced both by laminating and by forming. Flat laminates are easier to produce by the lay-up process, for small and relatively complex shapes with low thickness there are significant challenges in the forming process even for small drawing ratios, In this investigation, a cylindrical GLARE cup was chosen, this shape with sharp curves and vertical geometrical walls, still face numerous difficulties in the forming procedure. Numerical simulations have been used and compared with the experimental results in the stamp forming to achieve good forming quality with higher depth. An extensive investigation of the effect of process variables has been done such as blank-holding force, and blank holder gap and the curing condition. Also, their roles in wrinkles formation, tearing and thinning, as well as formability have been performed. The results show a good agreement between the experiments and the numerical simulation and show clearly that the application of blank holder force and blank holder gap within specified limits has a positive effect on the quality of the formed cup and leads to higher depths. Understanding these parameters and the GLARE forming conduct and having a decent choice of these parameters can give the advantage to achieve smaller and more complex shapes with higher depth, especially for large scale manufacturing. Finally, this investigation can expand the modern application regions of the FMLs and GLARE parts.



中文翻译:

利用冲压成型工艺参数对GLARE材料可成型性影响的研究

层压板的使用可以优化材料性能,这些混合材料可以解决工业领域的一些问题,特别是在航空航天和先进的汽车工业中。纤维金属层压板(FML)既可以通过层压也可以通过成型来生产。平面层压板更容易通过叠层工艺生产,对于较小厚度的较小且相对复杂的形状,即使对于较小的拉伸比,在成型过程中也存在重大挑战。在此研究中,选择了圆柱形GLARE杯,这种形状尖锐的曲线和垂直的几何壁在成型过程中仍然面临许多困难。已经使用数值模拟并将其与压模成形中的实验结果进行比较,以实现较高深度的良好成形质量。已经对工艺变量的影响进行了广泛的研究,例如毛坯夹持力,毛坯夹持器间隙和固化条件。而且,它们在皱纹形成,撕裂和变薄以及可成形性中的作用已经被执行。结果表明,实验与数值模拟之间具有良好的一致性,并且清楚地表明,在规定的范围内施加毛坯保持器力和毛坯保持器间隙对成形杯的质量具有积极影响,并导致更高的深度。了解这些参数和GLARE形成行为和具有这些参数的一个不错的选择可以给出的优点,以实现更小和更复杂的形状,其具有更高的深度,特别是对于大规模制造。最后,

更新日期:2020-04-20
down
wechat
bug