Why Can’t Aircraft Materials Be Welded, Only Bolted?

Airplane is one of the most important means of transportation for people. For the aircraft manufacturing technology, certainly many people do not understand, of course, the aircraft manufacturing technology is quite difficult. Xinchi Fastener Company based on years of experience in the fastener industry, a lot of people want to know: “Why the aircraft material can not be welded, only with bolts? “As a professional fastener manufacturer, Xinchi Fastener Company is pleased to introduce this problem.

With the continuous progress and breakthrough of Chinese science, China has also achieved good results in welding technology, even in the world is one of the best. Laser welding, in particular, allows steel to melt and stick together.

But the materials in the airplane don’t need to be welded. Why? Because planes are made of special materials. There is also the need to withstand a lot of pressure, but not overweight. As a result, aircraft are typically made of metals such as titanium. This metal has strong metal fatigue and is not solidly welded. And when subjected to high pressure, the metal tends to crack and so on. If the plane cracks in the air, the consequences can not imagine, even if there is no accident, but also need maintenance. And the maintenance cost is not low, so the use of bolt structure, the two parts firmly connected together. These situations can be avoided. When the aircraft needs maintenance, the aircraft is easy to disassemble, which is why the bolted connection is chosen.

Three reasons why aircraft materials cannot be welded:

Aircraft material is made of relatively light high-strength titanium alloy or aluminum alloy, rather than steel plate, but aluminum alloy is easy to deform at high temperature and reduce mechanical properties.
The aircraft is in a resonance environment when flying, and it is easy to break with welding.
It is difficult to weld titanium alloy and aluminum alloy used by aircraft.

The technology used in aircraft manufacturing:

To reduce the weight of the plane. The aircraft is mainly made of aluminum alloy. Cold – worked aluminum alloy has good mechanical properties. So the plane still has to be riveted.
With the development of aviation technology and manufacturing industry, the requirements for aircraft component connection are getting older and higher, and the requirements for riveting technology are also getting higher and higher. There are hydraulic riveting technology, automatic riveting technology and electromagnetic riveting technology.

Anji Xinchi Fastener Co., Ltd. is a fastener company providing one-stop solutions and is the designated fastener supplier of “Staples”. As a trusted supplier of fasteners, Xinchi can provide a range of high-quality fasteners including 4 prong t nuts, bolts, screws, washers, sleeves, etc. If you would like to know more about fasteners or want to wholesale fasteners, please do not hesitate to contact us. Our experienced professional service team will respond to you as soon as possible.