What Is TAG Welding?

Tig? (tungsten inert gas?)

Unfortunately,it is not Tig welding, but tug welding.

Okay, WHAT is it?!?!? tAg or tUg or tOg .........?!?!?

Don´t forget TEG

Not sure but possible is the identification of the weld, stamping close to the wel the corresponding number and the welder ID to keep`traceability with the welding map?????

Think A stands fot actve gas instead I for Inert gas. Active gas is a gas that interacts with the welded alloy like CO2 On the other hand inert gases like argon don't. Wild guessing it could only used in ferrous alloys. Any corrections?

The OP said

it is not tack welding or TAG welding.

He wants tag welding.

The complete sentence would have helped, but some how these translators always come out with micro-information.

Ok. Then, if that is true, I am with Kyzine in post number 7.

The title says TAG in caps and the statement by ops seems to have been incomplete.

The quality of the questions on CR4 have really gone bad lately.

Jon

Or just maby most smart Qs have already been answered and room is left only for secont class Qs (LOL) kkudukdweller9? Cheers!

Guest Jin,

For sure!

Jon

Give it a break.....................

Never heard tag welding. Guess!!! "tag" a strip of leather, paper, metal, or plastic attached to something or hung from a wearer's neck to identify, classify, or label.

Again if the word "tug"- meaning is strong pull or pulling force:

Dear Mr.Wingman,

To my knowledge - there is no Nomenclature in the WELDING related vocabulary as TAG WELD or TACK WELD.

It is only the common practise the term TACK WELD is used, where 2 components are joined and set for a particular position and finally to be welded.

DHAYANANDHAN.S,

CR4, MEMBER, INDIA.

tag welding, also known as stitch welding is a term used to join two parts by arc welding process such that the weld joints are not continous but are at certain distances apart and are generally in a lengths of 1" to 2".

Hi wingman,

TAG is: Tungsten Active Gas

T.A.G Welding search page

This includes a search page, to allow for further details and hardware that is used, as well as training courses.

Must be referring to TIG welding. Forgot the T but certainly I stands for Inert and G for Gas.

If your TIG or MIG welding then your shielding gas is pure Argon.
If your TAG or MAG welding then your shielding gas is a gas mixture i.e.
Argon/Co2, Argon/Helium or Argon/Hydrogen etc.

Unless you are using an Argo-shield in the MIG or TIG; because 'pure argon' is no better and costs more. And 'pure' CO2 basically sucks.

http://www.boc-gases.com/products_and_services/by_product/welding_gases/index.asp

But Note He Said it is Not TAG

So unless it a typo or a translation say from Cyrillic (http://en.wikipedia.org/wiki/Cyrillic_alphabet) with letter alternate use..... Accept it's not TAG, please please please

Kyzine,

Right! tag not TAG

tag welding is for affixing metal ID or Information plates to metalwork.

I posted that here already. See post 15.

Jon

Hi kuduk,

Looks like I got it wrong here! Bum!

Baby,

Yep. TAG was already covered.

"tag" was the issue and welding tags onto stuff may be what the question had to do with.

Maybe the op will show up and straighten it all out. OP don't always back though.

Jon

Hi Jon, Yep I saw it when you posted it and thought it very plausible and worth a vote.

You reminded me that in my dark past, we spot welded earth tags to metal bodied appliances. A touch more subtle than a MIG hit or my heavy plate suggestion.

But without some idea of context - ships to toasters - any one can be 'right' or all of us nowhere near it. I hope he comes back with how it panned out - or not.

Is it pispropuncitation?

Hi PWS,

pispropunitation............. Very clever!

But, 'welder' you meant it or not it is still clever.

To my knowledge, in my factory to manufacture custom-built container or any steel structure ,in the steel fabrication process, tag welding or tack welding is known as described by No. 12 and 13.. There are 2 cases, i.e. 1. When joining 2 parts of the metal to assemble for any structure that does not require strong welding , then welding is done with around 5 cm.long each tag and leaving gap between them along the line of structure that need to assemble. The rigidity is not required. The welding part does not involve with the load. This will give the forming of the structure. For example , doing tag welding of sheet metal to patch it on between 2 posts or column just to hold it to the structure. This to save time and also prevent from distortion if welding in a long distance. 2. When assembling any structure, by tag welding to form the configuration that desired. After then, the complete figure is evident, then completely weld all the way to give strong joint. Wiboonkiet

Wiboonkiet et al,

Does anyone attach any permanent metal identification plates to the finished welded products?

Is permanent identification of a welded product done by some other method?

Jon

Hi kuduk,

Do you mean to identify whether it has been welded and who by?

I ask because most items are 'welded' in some form, and because kitchen 'white goods' like fridges, and cars are just a couple of items which are welded and can be traced.

Baby,

Like in #15.

Kuduk

Hi kuduk,

Ermmm................ I kinda 4got that one! Sorry.

to kudukdweller9

The process that I mentioned is different from your ID tag on. It is a fabrication process of steel structure. However, after finishing, one may put the ID tag on either by stud welding, Riveting or bolting on the finished structure. Some uses decal sticking on the structure or container with ID, including MPI test, date of mfg.

or bar code.

Wiboonkiet

the phrase tag welding i have heard used in the electric industry used to join two or more wires together with a dye and a copper/ charge mix and use a electronic device to detonate it reaching temps about 1100-1500 degrees for copper. there are different mixes of charge for different types of wire. it is used in that phrase because of the tag that is left. im sure there is another word for it but cant think of it off the top of my head. hop that helps someone.

The process of explosive cladding, or explosive welding, has been understood for decades. Industry has been slow to realize its potential and the possible composites that it makes available.
A composite can be designed and fabricated to combine desirable properties of very different metals. This process allows the designers to optimize the performance of the composite for high temperature, cryogenic, high strength, thermal or electrical conductivity, enhanced mechanical properties, corrosion resistance, or any other application.

Welding Metallugically Incompatible Materials
Explosive bonding is considered to be a solid-state welding process that uses controlled explosive energy to force two or more metals together at high pressures.

The resultant composite system is joined with a high-quality metallurgical bond. The time duration involved in the explosive welding event is so short, that the reaction zone between the constituent metals is microscopic. During the bonding process, several atomic layers on the surface of each metal become plasma. The collision angle between the two surfaces (typically less than 30°) forces the plasma to jet ahead of the collision front, effectively scrubbing both surfaces and leaving virgin metal.

The remaining thickness remains near ambient temperature and acts as a huge heat sink. Therefore, the bond line is an abrupt transition from the clad metal to the base metal with virtually no degradation of their initial physical or mechanical properties. The obvious benefit from this process is the joining of metallurgically incompatible systems. Any conventional cladding method, which uses heat, may cause brittle intermetallic compounds to form.