GFRP/铝合金叠层静压铆接孔径对干涉量的影响

Influence of Aperture of GFRP/Aluminum Alloy Laminated Static Riveting on Amount of Interference

针对典型GFRP/铝合金叠层开展了2A10材质Φ4mm铆钉在Φ4.1~4.2mm孔径内,通过静压铆接后,铆钉钉杆在叠层不同位置处的干涉量测量及数据计算,得出干涉量变化差异及规律。结果表明,干涉量从复合材料侧向铝合金板侧过渡,在复合材料处有最大相对干涉量,在铆钉墩粗侧铝合金与铆钉有最小干涉量。静压铆接时,孔径Φ4.2mm比孔径Φ4.1mm拥有更小的干涉量值。

In this paper,for typical GFRP/aluminum alloy lamination,2A10 materialΦ4mm rivets were carried out in the aperture ofΦ4.1mm andΦ4.2mm.After static pressure riveting,the interference quantity measurement and data calculation of rivet rod at different positions in the lamination were carried out,and the difference and rule of interference quantity variation were obtained.The results show that the interference amount is transferred from the composite material side to the aluminum alloy side,and the maximum relative interference amount is at the composite material side,and the minimum interference amount is at the rough side of the rivet pier between the aluminum alloy and the rivet.In static pressure riveting,the diameter ofΦ4.2mm is smaller than that ofΦ4.1mm.