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Welding: Principles and Applicatio...

8th Edition
Larry Jeffus
ISBN: 9781305494695

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BuyFindarrow_forward

Welding: Principles and Applicatio...

8th Edition
Larry Jeffus
ISBN: 9781305494695
Textbook Problem
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Why are aluminum welds likely to cause distortion and cracking?

To determine

Reason of distortion and cracking in aluminum weld.

Explanation

Aluminum and its alloys have high affinity towards oxygen. Aluminum atoms combine with oxygen molecules under air and forms aluminum oxide. This oxide has high melting point and it is covered on the surface of the aluminum. Aluminum and its alloy have high thermal conductivity. It transfers the heat away rapidly from the metal. So, quick and high amount of heat is provided for the welding of aluminum. Molten weld pool of the aluminum melts with shrinkage approximately 6% in volume...

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