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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 must the root weld be started on a tack weld?

To determine

Reason of starting of root weld on a tack weld.

Explanation

First pass of the welding is called root pass welding. Root pass is made either in uphill and downhill. If the work metal is wider than uphill root pass is used. Uphill root pass technique is faster than downhill. Downhill technique is used for uniform root opening that need not to be too wide or narrow...

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