Stringer bead is used when a standard bead width is acceptable. is used to create a wider weld pool. It is formed by moving the torch or electrode holder from side to side as the weld pass progresses along the weld joint. Different movement patterns can be used; the crescent motion is one of the most popular patterns.
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.
How are stringer beads generally used in any welding position?
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.
How can the width of a bead be increased on an uphill weld?
The width of the weld bead can be increased by using a weaving motion. When welding uphill, start at the top of the workpiece. When using a whipping motion, the arc should be broken so the metal may cool.
What is bead weld?
A weld bead is a weld seam deposit that is formed in a single operation during a welding process. … A groove seam can be joined with one or more welding beads depending on metal thickness, and welding seams can also be performed with multiple passes through the layer by depositing two or more beads in the groove.
What is a stringer bead used for?
Stringer beads, laid parallel to the joint, are used for welding stainless steel pipe since there is less tendency toward carbide precipitation. Stringer beads are recommended for welding all carbon and low alloy pipe in the vertical-fixed position.
How do you make a weld bead?
Creating Weld Beads
- In a part, click Weld Bead (Weldments toolbar) or Insert > Weldments > Weld Bead . …
- In the graphics area, select the faces or edges for the weld bead. …
- Set options in the Weld Bead PropertyManager.
- Under Weld Path, click New Weld Path to create additional weld beads.
How wide should a weld bead be?
The maximum bead width should be limited to 3/8 in. (10 mm). As a minimum, one complete circumferential bead should be completed before stopping or interrupting the welding sequence.
What are the different types of welding beads?
Welding Beads – Types Of Beads
- TIG Welding Beads.
- Stick Welding Beads.
- MIG beads.
- Flux Cored MIG Beads. Conclusion.
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.
Which produces the wider bead?
A weave bead is made with some side-to-side motion, which creates a wider weld bead. The end of the weld may have a crater (depres- sion). This depression can be fi lled by moving the electrode to the end of the weld and then back over the completed bead about 1/2″ (13 mm).
How wide is a stringer bead?
Two types of weld beads can be made when welding: the stringer bead and the weave bead. A stringer bead is one made along a line without any side-to-side motion. The width of a stringer bead should be two to three times the electrode diameter.
What is molten weld pool?
Weld pool commonly refers to the dime-sized workable portion of a weld where the base metal has reached its melting point and is ready to be infused with filler material. The weld pool is central to the success of the welding process.