The FSW weld
is made by plunging a non-consumable, rotating tool into the base material which subsequently traverses a joint seam.
2), that has been associated with the onset of viscous shear (7) (indicating the formation of a melt-film at the weld
The authors classify a typical hybrid weld
in two parts: the wide upper zone and the narrow nether zone, which are defined as arc zone and laser zone, respectively.
This is the most important parameter in the spot weld
The rotor and electrode are housed in the weld
head, which rotates around the tube.
Listed are the measured weld
strengths, elongations, bead sizes, and final lengths of the welded
sections for the parameters tested.
areas (to slow weld
cooling) and tempering completed welds
Investigates processing and quality issues in tailor welded
blank manufacturing including weld
integrity and deformation
In submerged arc welding, the arc is covered by a flux, which prevents the weld
pool from atmospheric contamination.
The main weld
characteristics in a hybrid welding process are the order of processes with either laser or arc leading.
The primary effects that were studied included: (1) weld
strength, (2) impact strength (toughness), (3) amount of weld
flash, (4) cycle time, (5) residual stress level, (6) welding of unsupported walls, (7) weld
consistency when vibration motion is parallel and perpendicular to the walls, (8) minimum amplitude required to generate heating and (9) power dissipation.
Linear friction welding is effective on parts with complex geometry and resins that are difficult to weld
But he notes that now Dana has the knowledge base--and ability--to cost-effectively laser weld
quality through verifiable repeatability;
A new paper from NIST suggests that more attention must be paid to weld
repairs in order to avoid failures due to problems such as stress-corrosion cracking.