Welding Techniques – Part 2 of 2

In our last article, Welding Techniques – Part 1 of 2, we discussed two types of welding: Stick and MIG. These are two of the four most popular welding techniques used today. As promised, here in Welding Techniques – Part 2 of 2 we will talk about the other two techniques: TIG and Flux Core Arc welding.

 

TIG Welding

TIG welding, also known as Gas Tungsten Arc Welding is a form of arc welding that uses a non-consumable tungsten electrode in conjunction with an inert  shielding gas. The gas (helium or argon) is used to protect the weld from airborne contaminants. TIG welding was developed in the aircraft industry and patented in 1941. TIG welding is used to weld thin non ferrous metals such as stainless steel, magnesium, and copper.  While slower than some of the other types of welding TIG welding produces a stronger weld and gives the user more precise control of their work. Tig welding, being a more precise type of welding, requires practice and patience before it can be mastered.

 

Flux Core Arc Welding

Flux Core Arc Welding- otherwise known as  FCAW or FCA is a semi-automatic or automatic welding technique. Flux core arc welding was developed in the 1950s as an alternative  to shielded metal arc welding. FCAW uses a tubular flux filled wire instead of a shielded gas. Added to the flux are chemicals that when heated produce a gas to protect the weld. This type of welding is very similar to MIG welding as it uses a continuous wire feed during welding. The main difference between the two types of welding is that MIG welding uses a shielded gas, and FCAW does not need a shielded gas to protect the weld  from contaminants in the air. Flux Core Arc Welding is versatile and fast and can produce up to 5 times more welds per hour than MIG welding. This type of welding was patented in 1959, and to this day is very popular for non-critical welds.

 

Dolfab’s welders are well versed in the techniques necessary for custom metal fabrication in all manner of applications: t-top construction, fuel tank construction, fuel tank repair, RV repair, yacht refits, and even delicate staircase railings.

 

Photo courtesy of Hotrod.com

Detaclad: Innovative Method that Offers High Sheer Strength & Quality

 

Welding is a common process which is used in a number of different industries such as chemicals, refining, engineering, metals, and mining.  Earlier, conventional methods were used to join or fuse together two metals, however, now we have access to the latest technological advancements including tools and techniques that science has created to make our jobs easier.

A peculiar new technology has come forth which uses the energy of controlled explosions to weld plates together. Explosion Welding Process or Detaclad, is a unique and robust technology that is in great demand these days and has been adopted by a number of different industries due to the advantages that it offers.

Detaclad technology is widely in practice all over the world and is implemented to fuse together two dissimilar metals.  Explosion welding process is a step by step procedure that involves six phases such as: –

  • Plain Material Inspection
  • Grind Mating Surfaces
  • Assemble Backer, Cladder & Explosive
  • Explosion
  • Flatten & Cut
  • Testing ad Inspection

All these steps need to be followed in a sequence, in order to get the desired results. Significant precision is involved in all the stages to avoid errors. Even a small mistake can be significantly costly as all of the raw material will then have to be disposed off. With the help of explosion cladding, one can join unlimited range of compatible ad Non-compatible metals.  The Cladding process creates ductile, high strength weld over the entire metal surface. Using Explosive Clad, there are many benefits over roll band and weld overlay. There are many different metals such as Titanium steel, aluminum steel, and aluminum copper which have been created by using explosion cladding technology rather than the conventional welding process.

In nutshell, we can say that Detaclad is a globally tested and proven technology. Products designed with explosive welding procedure have better design options, corrosion resistance and improved service life. Here at Dolfab we are very proud to say that we use this innovative and awesome technology. Check out the Dolfab project gallery to see the work we did on Life of Riley, a 113′ Burger yacht that underwent this process.