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2. Electroslag welding - Wikipedia

   en.wikipedia.org/wiki/Electroslag_welding

   Electroslag welding (ESW) is a highly productive, single pass welding process for thick (greater than 25 mm up to about 300 mm) materials in a vertical or close to vertical position. (ESW) is similar to electrogas welding, but the main difference is the arc starts in a different location. An electric arc is initially struck by wire that is fed ...

3. List of construction trades - Wikipedia

   en.wikipedia.org/wiki/List_of_construction_trades

   Roofers replace, repair, and install the roofs of buildings. Sheet metal worker, also known as a Mechanical Worker, A person who installs Heating Ventilation and Air Conditioning systems (HVAC), duct work, and exhaust systems for kitchens, bathrooms, laundry rooms, furnaces, etc. They also install gas lines and gas piping to a variety of ...

4. Metal fabrication - Wikipedia

   en.wikipedia.org/wiki/Metal_fabrication

   Metal fabrication is the creation of metal structures by cutting, bending and assembling processes. It is a value-added [ 1 ] process involving the creation of machines, parts, and structures from various raw materials.

5. Arc welding - Wikipedia

   en.wikipedia.org/wiki/Arc_welding

   Arc welding is a welding process that is used to join metal to metal by using electricity to create enough heat to melt metal, and the melted metals, when cool, result in a joining of the metals. It is a type of welding that uses a welding power supply to create an electric arc between a metal stick (" electrode ") and the base material to melt ...

6. Welder - Wikipedia

   en.wikipedia.org/wiki/Welder

   A welder is a person or equipment that fuses materials together.The term welder refers to the operator, the machine is referred to as the welding power supply.The materials to be joined can be metals (such as steel, aluminum, brass, stainless steel etc.) or varieties of plastic or polymer.

7. Welding - Wikipedia

   en.wikipedia.org/wiki/Welding

   The efficiency is dependent on the welding process used, with shielded metal arc welding having a value of 0.75, gas metal arc welding and submerged arc welding, 0.9, and gas tungsten arc welding, 0.8. [57] Methods of alleviating the stresses and brittleness created in the HAZ include stress relieving and tempering. [58]