Why the weaving motion is important in welding?

Weaving motion (uniform side-to-side motion) is applied to the electrode which gives better fusion of the weld metal. This weaving motion or process should be repeated on welding beads from left to right, right to left, and top to bottom, and bottom to top—to build up an uniform appearance of the weld metal.

What is weld weave?

Besides filling a wider bead, weaving is used to control the heat in your weld puddle. In addition, you can pause on each side of the weld to achieve a good tie-in to the metal pieces and prevent undercutting of the edges.

Why would a welder move or weave the electrode during a weld?

Turn off the welding machine and clean up your work area when you are finished welding. The movement or weaving of the welding electrode can control the following characteristics of the weld bead: penetration, buildup, width, porosity, undercut, overlap, and slag inclusions.

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What is the purpose of the whip motion in welding?

Essentially, the whip portion of the technique means moving the electrode ahead about 2 electrode diameters…. and then moving the electrode back about 1 diameter. So it’s a 2 steps forward, one step back type technique that makes for a distinct ripple pattern.

What are the weave bead motion technique used in stick welding?

Weave bead welding involves making a weaving pattern in order to cover a larger surface area. This motion allows you to make cover welds over stringer beads, otherwise known as multipass welding. This technique is used when you are layering welds among one another (making multiple welds on the same seam).

How much weaving is allowed in welding?

Weaving with GMAW is a common technique when welding vertical-up, because it can be difficult to carry the puddle up without it. A slight weave is common when using GMAW in other positions, but it should be no more than 2.5 times the electrode (wire) diameter—for a 0.035-in.

What makes a good weld?

A good weld is easy to distinguish. It will be straight and uniform with no slag, cracking, or holes. There will be no breaks in the weld. It shouldn’t be too thin and there should be no dips or craters in the bead.

What is a benefit of using the stepping motion when making the weld?

Step Weld Program

The step program allows the welder to penetrate heavy wall tube/pipe without having to use the high amperage needed if using a continuous program. The step program is much like slowing down your weld speed instead of turning your amperage up if you are hand TIG welding.

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Why is important to strike the arc only in the weld joint?

It can cause damage to the inside of the machine resulting in damage to the machine. Why is it important to strike the arc only in the weld joint? Arc strikes that are not covered up by the weld are considered weld defects on most codes. … Turn down the amperage on the machine.

What causes undercutting during welding?

Undercutting. Undercutting is a groove or crater that occurs near the toe of the weld. … Causes: Excessive heat, as well as poor welding techniques, can both lead to undercutting on a weld joint. Cures: Reducing the welding current and voltage is the first step to rectifying undercutting.

What is the advantage of using a weaving motion when welding in vertical position?

A weaving motion is used to control the heat input wlien depositing the root pass. 10. When welding in vertical position using an E-7018 electrode, increase the current to levels higher than used in flat position.

Why is it important to have overlapping Stringer beads in fillet welds?

Overlapping beads are used to build up a surface and to make multi-pass welds.

Why uniformity of beads is important in welding?

The target size of the weld bead is determined according to the workpiece thickness, weld length, weld joint type etc. In addition, the uniformity of the bead size is also important from the standpoint of appearance as well as strength.

Should you weave when MIG welding?

When you weld each pass, treat it like a horizontal weld by weaving or swirling circles through the joint. If you’re running two passes, keep the bead narrower for the first pass.

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