Type 1 was considered to be the most appropriate choice for the laser beam butt joint
welding of S355 structural steel.
The highest values of residual stresses were found on corners of tube butt joints
It is also important to note that the minimal required amplitude with linear welding to achieve 80% of the base material strength is slightly lower than previously reported with the standard butt joint
1 M:2002 for the evaluation of the stresses due to re-alignment of welded sheet in butt joint
configuration with an initial offset.
In the case of fiber laser-GMA hybrid welding of the mild steel S355 of a thickness of 6 mm in a butt joint
with a 5 kW fiber laser and a GMA source of 450 W, Fellman and Salminen reported  that the focal point above the surface will achieve full penetration when trailing the GMA torch with a lower welding speed compared to the focal point below the surface as the molten metal flows to the front of the keyhole, ensuring full penetration.
The joint types were L-shaped and named rabbet 1, rabbet 2, dado, and butt joint
as shown in Figure 4.
A special mold was designed to create tensile butt joint
specimens of variable thickness [ILLUSTRATION FOR FIGURE 1 OMITTED].
Power losses through the keyhole increase with an increase in air gap in a butt joint
An alternative butt joint
which converts the rod to a 13-footer is the key to fine balance and great performance.
4-mm x thickness (6 x 1-in x thickness) bar, which is then routed down to a standard ASTM D638 tensile test specimen with the vibration-welded butt joint
in its center, as shown in Fig.
Each glass sheet is clamped in a butt joint
with its neighbour and hung on stainless-steel cables running from ground to roof level.
Effective immediately, the special glass PYRANOVA can even be used as butt joint
glazing in wooden frames in fire resistance classes up to EI 90.