Investigation of the friction behavior between dry/infiltrated glass fiber fabric and metal sheet during deep drawing of fiber metal laminates
Investigation of the friction behavior between dry/infiltrated glass fiber fabric and metal sheet during deep drawing of fiber metal laminates
复制标题
纤维金属层压板深拉过程中干/渗透玻璃纤维织物与金属板之间摩擦行为的研究
DOI：
10.1007/s11740-022-01141-y
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Ben Khalifa
中科院分区：
文献类型：
--
作者：
Werner;Mennecart;Liebig;Weidenmann;Ben Khalifa
在纤维金属层压板的深拉工艺过程中，例如新开发的原位杂交工艺，纤维和金属片接触，同时干织物被反应性基质系统渗透。基质的粘度随着聚合在深拉伸期间开始而增加。在原位杂交工艺中，对干纤维金属层压材料进行深拉伸，同时在树脂传递模塑工艺中将热塑性基体系统注入玻璃纤维织物层中。在纤维金属层压件的成形期间，摩擦发生在金属板的切线方向上。在拉深成形过程中，摩擦力在防止板料伸长方面起主要作用。因此，测量纤维与金属板之间的摩擦系数是必不可少的。在本文中，金属板和干燥或渗透的玻璃纤维织物之间的摩擦在1.67 MPa的高接触压力下，发生在深冲压工艺，其特征在于。利用改进的拉带试验装置，分析了在恒定高接触压力下的摩擦系数。压缩试验表明，库仑摩擦可以假设。使用不同类型的玻璃纤维织物和具有规定粘度的液体。结果发现，流体具有较高的粘度降低摩擦系数的界面，这是物理解释。对于原位杂交过程，推断出在低粘度下，实现了更好的渗透，而较高的粘度降低了摩擦系数以获得更好的成形性。
During deep drawing processes of fiber metal laminates, such as the newly developed in-situ hybridization process, fibers and metal sheets come into contact while the dry fabric is infiltrated by a reactive matrix system. The viscosity of the matrix increases as polymerization starts during deep-drawing. In the in-situ hybridization process, a dry fiber metal laminate is deep drawn while a thermoplastic matrix system is injected into the glass fiber fabric layer in a resin transfer molding process. During forming of the fiber metal laminate, friction occurs in tangential direction to the metal sheet. The friction plays the main role in preventing the elongation of the sheets in the deep drawing process. Therefore, the measurement of friction coefficients between fibers and metal sheets is essential. In this paper, the friction between sheet metal and dry or infiltrated glass fiber fabric under high contact pressures of 1.67 MPa, as occurring in deep drawing processes, is characterized. A modified strip drawing test setup is used to analyze the coefficient of friction under a constant high contact pressure. Compression tests were performed to show that Coulomb friction can be assumed. Different types of glass fiber fabrics and liquids with defined viscosities are used. It was found that fluids with higher viscosity decrease the friction coefficients in the interface, which is physically explained. For the in-situ hybridization process, it is deduced that with low viscosities, a better infiltration is achieved, while higher viscosities reduce the friction coefficient for better formability.
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DOI：
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