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Types of Welding – Welding Technology

One of the important fabrication processes in the industry is welding. In this process, two or more parts are fused together using heat, pressure, or cooling to form a joint. Welding can be done on a variety of metals and non-metals and is a key operation in metallurgy and manufacturing industries.

Learning about welding technology from one of the top welding tech schools can give you an edge in your career. Welding processes can be done using a variety of techniques depending on the type of materials to be fused together.

Here is a brief overview of the common types of welding in which you can get Welding Certifications from the best welding tech schools in the U.S.

Metal Inert Gas (MIG) Welding

In this welding process, the workpiece metal(s) is heated by an electric arc that forms between a consumable wire electrode and the workpiece metal(s) which melts and eventually cools which causes these to fuse together. To prevent any contamination from the surrounding air, an inert shielding gas is supplied through the welding gun along the consumable wire electrode to shield the electric arc which ensures that no surrounding gas can contaminate the process.

Metal Inert Gas (MIG) Welding accounts for more than 50% of all deposited metal welds in the industry and it is widely used. It is a modern, improved arc welding process that is flexible and suitable for mechanization and is highly lucrative and sought after skill in the welding, fabrication, and metal joining companies in the Tri-state area. Welding Certification in this technology will give you an edge as a skilled welder where a high degree of manipulative skill is expected of a qualified Metal Inert Gas (MIG) Welder in the industry.

Type of Welding technology - Metal Inert Gas Welding

Tungsten Inert Gas (TIG) Welding

The only difference between Tungsten Inert Gas (TIG) Welding and Metal Inert Gas (MIG) Welding is the addition of a filler metal in the welding process. In Tungsten Inert Gas (TIG) Welding, the workpiece metal is heated by an electric arc formed between the workpiece metal and a non-consumable Tungsten wire electrode where a filler metal is used to add to the weld pool (where the workpiece metal and filler metal melt and eventually cool). This area is surrounded by an inert gas, usually Helium or Argon, similar to Metal Inert Gas (MIG) Welding, which shields it from oxidation and other contamination by the surrounding atmosphere.

The advantage of Tungsten Inert Gas (TIG) Welding over Metal Inert Gas (MIG) Welding is that it is suitable for all industries but requires high-quality welding and is widely used in mechanized modes. The welding operator must be well trained to give precise attention to the joints and welding parameters. The employment opportunities that open up by learning Welding Technology from the best welding schools in the U.S can give a skilled welder the sustainability and stability in their career and scope for attaining better opportunities in the industry.

Type of Welding technology - Tungsten Inert Gas Welding

Shielded Metal Arc Welding (SMAW)

One of the typical welding techniques is Shielded Metal Arc Welding. It is a manual arc welding process that requires a flux coated consumable electrode and the surface of the workpiece metal to melt and fuse together to create the weld. In this process, gas and slag are formed during the heating which prevents contamination from the surrounding atmosphere and protects the weld area. The slag cools off and solidifies and must be chipped off before the metal workpiece becomes usable for the next process.

The skills of the welder determine the quality of the weld and so a qualified welding technician is particularly valuable to the industry as this simple and versatile welding technique is ruling the repair and maintenance sector of the metal fabrication industries.

Type of Welding technology - Shielded Metal Arc welding

Flux Cored Arc Welding (FCAW)

Flux Cored Arc Welding (FCAW) is a semi-automatic or automatic welding process where the consumable electrode has a flux core and is continuously fed. Depending on the material in the flux core, the necessary process to eliminate atmospheric contamination is determined. In one type of Flux Cored Arc Welding (FCAW), the core contains flux and other materials which produce a shielding gas during the welding process which prevents contamination by protecting the welding arc. And in the other type of Flux Cored Arc Welding, an external source of shielding gas is supplied to protect the weld pool from oxidation.

Flux Cored Arc Welding (FCAW) is portable, highly productive, and produces high-quality welds. The employment opportunities for a certified welding technician in Flux Cored Arc Welding (FCAW) from a welding tech school are high due to requirements of this technology in the construction industry due to the portability, ease, and flexibility of operations.

Type of Welding technology - Flux Cored Arc welding

Great Job Opportunities as a Professional Welder

Great Job Opportunities as a Professional Welder
There are plenty of exciting and lucrative job prospects for a fresher or industry professional with a Welding Certification from the best welding schools in the U.S. that will help establish them in the industry and provide sustainable employment. According to the Syndicate PayScale Data, the average annual starting salary for a professional welder ranges from $54,000 to $71,000 and exponentially increases with the years of experience whereas an experienced qualified welding technician can earn $100,000 annually on average.

Great Job Opportunities as a Professional Welder
A huge variety of industries including manufacturing, construction, transport, energy sectors employ skilled, certified technicians and provide growth and mobility to their careers. As the rise in technological innovations and developments take place, the demand and preference for expert welders are always present for meeting the need and requirements of the industry for employing the technical and creative skills of the trained and experienced workers in producing high-quality outcomes.

References:

  • TWI Global – https://www.twi-global.com/technical-knowledge/faqs/what-is-arc-welding
  • Go Welding – https://gowelding.org/welding/
  • Metal Inert Gas Image – Arora, H., Singh, R., & Brar, G. (2019). Thermal and structural modelling of arc welding processes: a literature review, Measurement and Control.
  • Research Gate – Exemplification of Tomographic Method to Evaluate the Quality of Welded Joints Made from EN 5754-H22 Alloy, December 2016
  • Shielded Metal Arc Welding – Favi, C., Campi, F., Germani, M. et al. A data framework for environmental assessment of metal arc welding processes and welded structures during the design phase. Int J Adv Manuf Technol 105, 967–993 (2019). https://doi.org/10.1007/s00170-019-04278-w
  • Flux Cored Arc Welding – Correa, C. A. Mastelari, N., & Moreno, J. R. S. (2014). Effect of welding parameters in flux core arc welding (FCAW) with conventional and pulsed current in the efficiency and fusion rate of melting coating. Scientific Research and Essays, 9(23), 976 – 983.

PayScale- https://www.payscale.com/research/US/Job=Welding_Engineer/Salary

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