What is the purpose of the weave bead?
What is the purpose of using a weave bead? Besides allowing a wider bead, weaving is used to control heat in the weld puddle. Besides that, you’ll usually want to pause on each side of the weld to achieve good tie in and prevent undercutting of the edges.
What is the difference between a stringer bead and a weave 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.
What is the meaning of stringer bead?
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.
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.