Welding is a critical process that is controlled by both national and international standards and specifications to control the quality of the deposited weld metal and the skill of the welder. Welders can work in a unit or factory which produces fabrications and/or structures for industries as diverse as civil engineering, mechanical engineering, transport, marine engineering, construction, service, and leisure industries.
A welder prepares, assembles, and joins a wide range of metals and metal alloys using various welding processes. A welder will use mainly processes where the heat utilized for welding will be an electric arc to join a range of materials. Electric arc processes utilise a gas shield or a flux to protect the molten weld area from contamination by the surrounding atmosphere.
The most used welding processes are listed below, and practical training programs can be tailored to suit the individual’s needs.
- Manual Metal Arc welding/Shielded Metal Arc welding
- Metal Active Gas Arc welding/Gas Metal Arc welding,
- Gas Tungsten Arc welding/ Tungsten Inert Gas welding
- Flux Cored Arc welding.
- Submerged Arc Welding (Automated process)
A welder needs to be able to interpret engineering drawings, standards and symbols and correctly translate these requirements into accurate structures and fabrications. They need to gain specific knowledge of how welding will affect the structure of the material being welded.
Welders join sections, pipe and plate and fabricate large and small pressure vessels. They must be able to select the correct equipment, process variables and welding technique depending upon the material being joined, and they use grinding and cutting equipment to prepare welded joints.
Practical welder training can be booked on a week-by-week basis, either at SAIW or in-house, for the purpose of upskilling the workforce and/or certification to code of construction levels using SAIW welding procedures or employer procedures. The SAIW also offers the International Institute of Welding’s (IIW) International Welder (IW) qualification programme. In addition, SAIW is an approved QCTO skills provider for the theoretical and simulated practical learning requirements of the Welder apprenticeship.
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