Aluminium is very difficult to weld primarily because:

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General Studies · Welding

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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It rapidly forms a tenacious layer of Al2O3 on its surface

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Answer 1

It is a very light material

Answer 2

Its melting point is very low

Answer 3

It rapidly forms a tenacious layer of Al2O3 on its surface

Answer 4

It does not form a metallic bond easily

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