Tungsten Inert Gas (TIG) Welding

Type of technology

Joining techniques

Development phase

advanced

Level of innovation

enterprise level

Scale of production

mass

Technology readiness level TRL

Description of the technology

Purpose of use

joining various materials

Use in industry

power industry, aviation industry, aerospace industry

General characteristics

Tungsten Inert Gas (TIG) welding, also known as Gas Tungsten Arc Welding (GTAW), is an arc welding process in which a weld is produced using a non-wearing tungsten electrode. Using an inert gas shield instead of slag to protect the weld pool, the process was a very attractive substitute for gas welding and manual arc welding. TIG has played a major role in making aluminium acceptable for high-quality welding and structural applications.

Alternative technologies

Visualisation

Advantages and disadvantages

Advantages

  • versatility of the method
  • applicable to thin walls
  • high weld quality
  • possibility of automation

Disadvantages

  • low welding speed
  • TIG welding operations may cause interference with other equipment

Workpiece material types

  • all material groups
  • ferrous metals
  • non-ferrous metals
  • non-ferrous metals alloys

Examples of products

  • pipe welding
  • welding of pipelines
  • welding of thin sheets

Implementation of technology

Required resources

  • welding machine
  • gases
  • binder

Required competences

  • welding courses

Environmental aspects

Water consumption

Energy consumption

Waste generated

Expert evaluation

Competitiveness

Usability

Environmental impact

Development centers

  • AGH University of Krakow
  • Opole University of Technology
  • Institute of Metallurgy and Materials Science of Polish Academy of Sciences
  • Warsaw University of Technology
  • Cracow University of Technology
  • Łukasiewicz Research Network – Institute of Welding

Legal conditions

  • none

Companies using technology

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