- Analysis & Instrumentation
- Cleaning, Polishing & Grinding
- Coating & Surface Treatment
- Controlled & Modified Atmospheres
- Cutting, Joining & Heating
- Freezing & Cooling
- Heat Treatment
- Inerting, purging, sparging
- Melting & Heating
- Petrochemical Processing & Refining
- Pharmaceutical Processing
- Plastics & Rubber Processing
- Process Chemistry
- Water treatment
Tungsten Inert Gas (TIG) welding uses the heat generated by an electric arc struck between a non-consumable tungsten electrode and the workpiece to fuse metal in the joint area and produce a molten weld pool. The arc area is shrouded in an inert or reducing gas shield to protect the weld pool and the non-consumable electrode. The process may be operated autogenously, that is, without filler, or filler may be added by feeding a consumable wire or rod into the established weld pool. TIG produces very high quality welds across a wide range of materials with thicknesses up to about 8 or 10mm. It is particularly well suited to sheet material.
The success of this welding process hinges on various factors such as the choice of shielding gas, welding wire, tungsten electrode and the welding technique.
Accelerating Welding Speeds by up to 100%
We deliver a range of tried-and-tested TIG welding gases under our VARIGON® and Forming Gases families. Some of these mixes add helium, hydrogen or nitrogen to argon to achieve superior welding speeds and higher process stability. You will benefit from higher quality welds, fewer incidents and less rework effort. Some customers have doubled their welding speeds with our VARIGON line, for instance. Our application experts can advise you on the mixture and operating parameters best suited to your needs, also supporting you with the equipment and gas management services you need.