Deep Drawing of Commingled yarn Fabric Reinforced Thermoplastic

混纱织物增强热塑性塑料的深拉

基本信息

批准号：
10650114
负责人：
FUJIWARA Junsuke
金额：
$ 2.3万
依托单位：
Osaka University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 2000
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650114/
关键词：
Composites Moulding process Deep drawing Wrinkle formation Polypropylene resin Glass fiber Commingled yarn Moldability しわ

项目摘要

The use of continuous fiber reinforced thermoplastics and thermosets as lightweight heavy-duty engineering materials has increased because of their obvious advantages. Compared to thermosets, thermoplastic composites have superior damage tolerance, good hot/wet performance, unlimited shelf life, short processing cycles and easy recycling. In this report, commingled yarn fabric of glass fiber and polypropylene resin was used. This material has become progressively more attractive to various industrial sectors. But useful moulding process are not confined yet because it was developed only few years ago.The results of the standardized deep drawing investigations, using pre-consolidated material of commingled sheets of glass fiber and polypropylene fibers, are carried out. It shows that the standardized deep drawing tool, used for the investigations outlined in this paper, is indispensable for designers. Apart from the process parameters, it is possible to examine the maximum drawing depth of any chosen reinforced material.The deep drawing was carried out with various drawing depths and various punch radii. The main results obtained were as follows :1. The heating temperature of the composite material should be 220℃ and the mold temperature about 100℃ to obtain optimum quality of the parts.2. The maximum drawing depth decreased with decreasing punch radius.3. Wrinkle formation occurred at the 0° portion because of fiber buckling, and at the 45° portion because of shear deformation.

由于其明显的优势，将连续的纤维增强热塑性塑料和热固性用作轻巧的重型工程材料增加了。与热塑料相比，热塑性组合物具有较高的损伤耐受性，良好的热/湿性能，无限的保质期，较短的加工周期和易于回收。在此报告中，使用了玻璃纤维和聚丙烯树脂的混合纱织物。该材料对各个工业领域变得越来越有吸引力。但是，有用的成型过程尚未限制，因为它仅在几年前就开发了。标准化深度绘图投资的结果是使用玻璃纤维和聚丙烯纤维的混合材料材料的预固结材料。它表明，用于设计师必不可少的标准化深绘图工具是本文概述的投资。除了过程参数外，还可以检查任何选择的增强材料的最大绘图深度。获得的主要结果如下：1。复合材料的加热温度应为220℃，模具温度约为100℃，以获得零件的最佳质量。2。最大绘图深度随着打孔半径的减小而减小3。由于纤维屈曲而在0°部分发生皱纹形成，并且由于剪切变形而在45°部分发生。