论文部分内容阅读
在航空运输日益发达的今天,人们对飞行已经相当熟悉:伴随着发动机有力的轰鸣声,飞机腾空而起,起落架随之缓缓收入舱内,飞机经过短暂的爬升后迅速消失在地平线上。所有这些,依赖的是高效的机体结构、强劲的发动机、强壮的起落架、先进的系统等,而构成这一切零部件基础的主要是航空金属材料。合金家族之一:铝合金1903年,美国莱特兄弟发明了世界上第一架飞机,所选用的材料是木材和帆布,飞行速度只有每
People are familiar with the flight today as the air transport is more and more developed. With the powerful roar of the engine, the aircraft leapt into space and the landing gear slowly absorbed into the cabin. The aircraft quickly disappeared into the horizon after a short climb. All of this relies on an efficient body structure, a powerful engine, a strong undercarriage, an advanced system and more, and aerospace metals are the basis of all these components. Alloy family: aluminum In 1903, the United States Wright brothers invented the world’s first aircraft, the selected material is wood and canvas, flying only once per