butt weld


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Related to butt weld: seam weld, fillet weld, plug weld

butt weld

[′bət ‚weld]
(metallurgy)
A weld that joins the ends of two pieces of metal of similar cross section without overlapping.

butt joint

welded butt joint
butt joint formed by two boards
1. A plain, square joint between two members, where the contact surfaces are cut at right angles to the faces of the pieces; the two pieces are fitted squarely against each other rather than lapped; Also see oblique butt joint.
2.
References in periodicals archive ?
The same type of calculations and evaluations as described above for butt welds were also carried out for cruciform joints.
This was done in order to maintain some consistency with the calculations for butt welds, and to assure that [k.sub.m,eff,min] did not become relevant in all cases.
The fatigue life predictions in Figure 13 to 15 confirm and reinforce the findings of section 4, valid for butt welds. For cruciform joints, it is again apparent that the various methods lead to significantly diverging fatigue life predictions.
In this paper, a study was presented in which two standard welded joints (butt welds between plates of equal and unequal thickness; T-joints with fillet welds) were analysed with the help of the structural stress and the effective notch stress approach, considering various levels of geometric imperfection up to the tolerance limits, and the resulting fatigue life predictions were compared to the nominal stress approach predictions.
Derivation of the IIW stress concentration factor [k.sub.m] for butt welds in plates of equal thickness
The residual stress increases with the increase of the width of the butt welds.
The residual stress data obtained by the hole-drilling method proved the distribution rule of the residual stress in wide butt welds. Particularly, the transverse residual stress errors between the simulation and measurement results are a little larger than the longitudinal residual stress errors.
The magnitude and distribution of residual stress in the wide butt welds have significant influences on the fatigue behaviors of the steel truss bridge [1].
It shows that after the ultrasonic peening the longitudinal residual stresses of the four different butt welds were reduced by 21%, 43%, 17%, and 33%, respectively.
Butt weld line is increasing when increasing flow rate in conventional molding.
When making parts from LCP with traditional injection molding a rise of about 40% in butt weld line strength could be achieved with overflow.
* TIP 0402-33 Guideline for obtaining high quality radiographic testing (RT) of butt welds in boiler tubes