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伴随着近代航空工业的迅速发展,相应地在金属材料性能上提出了更高的要求,近十年来航空科学工作者和金属学者们正致力于这项研究工作。寻求新型的合金,以适应高速飞行的要求。 在航空工业上用来制造铆钉的金属牌号范围是比较广的,常用的铝合金材料有1、16、3、18、等几种,它们在铆接工艺性能和机械性能上虽具有一定的优点,但还有不足之处,如:1、16的剪切强度较高而孕育期却很短(1的τ=24公斤/公厘~2,孕育期2小时;16的τ=26公斤/公厘~2,孕育期
With the rapid development of modern aviation industry, correspondingly higher requirements on the performance of metallic materials have been put forward. For the past ten years, aviation scientists and metallurgy researchers are devoting themselves to this research work. Seek new types of alloys to meet the demands of high-speed flight. In the aviation industry used to manufacture rivets of the metal grades is relatively wide range of commonly used aluminum alloy 1,16,3,18, and so on, they riveting process performance and mechanical properties although has certain advantages, But there are still some shortcomings, such as: 1, 16 higher shear strength and incubation period is very short (1 τ = 24 kg / mm 2, 2 hours of incubation; 16 τ = 26 kg / male PCT ~ 2, incubation period