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Why are aircraft structure /skin Riveted then being welded?

Why are aircraft structure /skin Riveted then being welded?

  • Ever wonder why most airplane primary structures and skin are mostly riveted instead of being welded?

  • Aircraft skins were riveted for many years, partly because it was traditional, partly because materials like Duralumin are not weldable because the aluminum materials used in their construction isn't tolerant of heat and most commercial aircraft are designed with an aluminum body, not only aluminum is inexpensive and readily available; it's also lightweight which is very essential in aircraft design.

  • Riveted joints are good for easy removal of panels, cleats, etc when necessary, and cracks in materials can’t cross holes, they’re a natural crack stopper. Welds? A crack can pass through a weld
  • Airplanes flex constantly while they fly. This will play havoc with welded joints, potentially leading to cracking in a thin joint (which skin joints will be). Rivets are much more friendly to moving parts because they have a little give to them.

credit by Andrew naidu
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