Can you weld a metal file?
A file is fully hard – it hasn’t been tempered at all, so any heating will soften it. Thus even a tack weld will make a soft spot which will wear quickly. It might be possible to weld the file and re-do the heat treatment, but odds are the weld would fail during the quench.
Can you weld over a weld?
It should be remembered that welding over weld metal is actually a very common occurrence. Multi-pass welds after all are manufactured by welding over weld metal! There are also many accepted procedures in which welds overlap. Another factor to consider is compositional variation between the two welds.
Is a weld defect that happens when you are not depositing enough filler metal?
Underfill – is a weld DEFECT that happens when you are not depositing enough FILLER METAL according to the welding specs.
Does grinding a weld weaken it?
If you do grind a perfect weld, yes it will make it weaker. If you just want to smooth it a little to make it look nicer, it will weaken it a little bit but should still have structural integrity. Grinding a weld doesn’t always weaken the weld, but may.
Is a weld the weakest point?
The official position of materials science is that a weld properly performed is at least as strong as the original piece. This can be misleading because although a weld has a higher tensile strength it is usually less ductile meaning it loses some “toughness”.
What holds a weld together?
Welding clamps are used to hold work together before you tack your parts together. Clamps come in more sizes and shapes than you can even dream of. My favorite and most commonly used workholding clamps for welding are: Welding magnets.
What is a puddle weld?
An arc spot weld also referred to as a puddle weld, or a plug weld, is the method used for welding steel decking to the supporting steel framing below. It penetrates into the steel beams, steel trusses, or open web joists beneath it and attaches the the metal deck.
Can fillet welds be used for corner and T joints?
Intermittent fillet welds may be used to carry calculated stress. 2.14.3 Corner and T-Joint Reinforcement. If fillet welds are used to reinforce groove welds in corner and T-joints, the fillet weld size shall not be less than 25\% of the thickness of the thinner part joined, but need not be greater than 3/8 in.
Can You weld over weld metal?
It should be remembered that welding over weld metal is actually a very common occurrence. Multi-pass welds after all are manufactured by welding over weld metal! There are also many accepted procedures in which welds overlap.
What is the difference between two overlapping welds?
Of particular importance are any differences between the welding procedures of the two overlapping welds. If the heat inputs are different, such as when a multi-pass girth weld overlaps a single-pass seam weld, the cooling rate of the weld metal in the two cases will be different.
What is the minimum effective length of a fillet weld?
The minimum effective length of a fillet weld shall be at least four times the nominal size, or the effective size of the weld shall be considered not to exceed 25\% of its effective length. 2.4.3 Effective Area. The effective area shall be the ef- fective weld length multiplied by the effective throat.