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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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What is the effect on the weld of changing the welding angle from a dragging to a pushing angle?

To determine

The effect on the weld of changing the welding angle from a dragging to pushing angle.

Explanation

There are three types of technique to hold the gun, forehand technique, Perpendicular and backhand welding technique. These techniques are categorized basically on the basis of gun angle.

The forehand welding technique is sometimes also referred as pushing the weld bead technique. Backhand technique sometimes also referred as dragging the weld bead and perpendicular technique is the technique in which the gun is hold approximately 90° to the weld surface.

In forehand welding technique welders used to point the gun away from the weld as they travels away from it. Forehand welding produces shallow penetration of metal and build up.

In backhand Welding technique welders used to point the gun towards the weld as they travels away from it. For instance if the welder is welding from right to left then the gun is directed towards the right

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