What is the purpose of using a weave bead?

What is the meaning of weave bead?

A weld bead which is made with oscillations along the bead which are transverse to the length of the bead.

What is the difference between a weave bead and a stringer bead?

FILLER PASS WELDING Weave beads, produced by weaving the torch across the joint, can be used on carbon and low-alloy steel in the rolled or horizontal-fixed position. Stringer beads, laid parallel to the joint, are used for welding stainless steel pipe since there is less tendency toward carbide precipitation.

Why is stringer bead necessary in welding?

Stringer beads are generally not very wide and can be used in any welding position. … It’s critical to get fusion between the weld and the base metal. Sometimes, moving the torch slow enough allows the weld puddle to flow over both sides of the joint. This may be all it takes to achieve good fusion.

What is stringer bead in welding?

Stringer bead – A narrow, straight weld bead that is created by moving the SMAW electrode straight along the weld joint. A quality stringer bead should have good tie-in on both sides of the weld. … Fill – Also referred to as a fill pass, it is the amount of weld bead necessary to fill the weld joint.

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What is bead in welding?

Bead – the deposited filler metal on and in the work surface when the wire or electrode is melted and fused into the steel. A stringer bead is a narrow bead with only a dragging motion or light oscillation, while a weave bead is wider with more oscillation.

What is the purpose of surfacing?

Surfacing refers to altering the surface characteristics of a material to achieve improved chemical or physical properties. This is done by welding or by spraying a filler metal coating onto a substrate. Surfacing imparts corrosion prevention properties to the substrate metal.

What metals give off toxic fumes when welding?

Welding fumes contain a variety of metals, including aluminum, arsenic, beryllium, lead and manganese. Argon, nitrogen, carbon dioxide, carbon monoxide and hydrogen fluoride gases often are produced during welding. Welding fumes can cause serious health problems for workers if inhaled, according to OSHA.

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.