Welding Technology in Aerospace Industry | D&H Secheron

1
(No Transcript)
2
Description

• Welding in the aerospace industry has seen some
  very fascinating and exciting developments in
  recent years. The ever improving knowledge of
  welding material, designs and welding as a whole
  are paving the way for welding being implemented
  in aeronautics.
• Welds have been replacing rivets and bolts since
  World War 2 and hence, has become a favourite for
  the military, ship building and the aeronautics
  industry. This is for the simple reason that
  welding is cost-effective as compared to rivets,
  welds require less year-on-year maintenance,
  welding is structurally sound while being
  light-weight and rivets simply just add on to the
  weight of the aircraft or of the project.
• Preferred types of welding in this industry are
  diffusion welding, laser welding and
  electron-beam welding. There are a few other very
  promising welding methods which are slowly
  gaining popularity and establishing quick effects
  too. These are, friction stir welding and
  variable polarity plasma welding.
• While welding in aerospace is making
  ground-breaking improvements, there are certain
  challenges that are posed in the aerospace
  defense industry. Lets have a look at those

3

• Uncommon Materials
• Materials used in welding for the aerospace and
  defense industry are often different from the
  common usage. Why? They need more malleable,
  ductile yet at the same time sturdy and
  lightweight metals.
• Thus, exotic metals and materials are used in
  aerospace applications. These are materials like
  stainless steel, and aluminium to begin with and
  high-end materials like inconel and titanium are
  widespread.
• Complex Joint Designs
• With unique and new structures in this industry,
  there are many complex joints and designs that
  have to be aced. Welding is the right choice for
  it, because rivets cannot do a job as smooth and
  seamless and very importantly, as lightweight as
  welding can. This requires efficient processes in
  the assembly line as well as the best of the best
  methods of welding.
• For the purposes of overcoming the challenge of
  joints and uncommon designs of megastructures,
  electron-beam welding and laser welding are the
  best choices to weld two complicated parts and
  metals.

4

• Airtight Sealing
• In case of both aerospace as well as military
  counterparts of it, airtight sealing is required
  to protect sensitive material, both electronic
  and otherwise. Expensive gear that has to be
  uncompromised at all points, without any other
  failures and at all costs need this hermetic
  approach to be followed through.
• This would not be possible without welding, and
  thus welding is not just a great choice, but also
  a must.
• High thermal conductivity
• Most metals, alloys and materials used in these
  industries have a very high thermal conductivity.
  Along with this, these materials also have a high
  crack sensitivity which makes it challenging for
  the welder.
• The materials are difficult to weld with the
  common methods of welding since high standards of
  quality, airtight sealing and more is required of
  them. Therefore, more advanced ways of welding
  like electron-beam welding and laser welding are
  the preferred methods.
• These are a few among the many challenges that
  one faces in the aerospace industry while
  welding. But its a vast universe in itself, and
  a very interesting one at that!

5
THANK YOU!

• To Know More Visit
• https//www.dnhsecheron.com/blogs/welding-technolo
  gy-in-aerospace-industry