Tack weld

tack weld

[′tak ‚weld]
(metallurgy)
A joint between two pieces of metal made by welding at isolated points.

Tack weld

A weld designed not to carry a load, but to make a nonstructural connection.

tack weld

1. A weld used for holding metal parts in position temporarily.
2. One of a series of welds applied where a continuous weld is unnecessary.
References in periodicals archive ?
When using a MIG or Flux Core welder, a quick one-second zap should produce a good tack weld.
Tack weld a collar stud (3/8-16UNC-2A x 1-3/8 L (MIL-S-24149/1-542), NSN 9Z 5307-01-225-7814) to the support leg closest to the vibration switch bracket.
As long as tack weld correspond of the local heat treatment, the higher temperature level leading to some transformations in the material structures associate with elongations which can varying from one point to other point in the heated zone.
All you need to do is bolt and tack weld the pieces together.
For these specimens, a tack weld (for alignment) was applied and then wrapped with the composite material.
Now line up the tapped hole in the lower cap with the hole in the leg of the 6" beam with a welding rod, and tack weld it to the beam.
Tack weld the cut off ends to form a "V" to the size desired.
We had six guys welding full out in two assembly lines; one to tack weld, one to weld the stainless steel boss to the mounting bracket, and the third guy welded the hardened steel fin to the boss.
Now tack weld to the jaws, clean off the tack welds and finish welding,(Photo 4).