Welding is a very important aspect of engineering and manufacturing. Without this ability, strong and durable connections between materials would not be possible. Thus making it hard to produce many different items that we rely on in our everyday lives, some examples being medical implants and electrical devices. This is why we have put together some welding Birmingham tips.
Metal fabrication is an extremely sought after trade in many industries.
Likewise with specific trades, metal fabrication takes time; and learning the methods of working with metal, training through college and apprenticeships are necessary.
If you are looking for a career in metal fabrication, it is important for you to learn the correct techniques to ensure you are prepared and have the appropriate knowledge for a job in the metal fabrication field.
Welding is the key focus of steel fabrication.
The parts that have been formed and machine will then be assembled and tack welded into place and then checked again for accuracy. It is possible a fixture may need to be used to locate the parts for welding if multiple weldments have been ordered.
The welder will then continue to finish the welding against the engineering drawing if the welding is has a detailed plan, or against their own judgment on the chance no details have been given.
Precautions may need to be taken to prevent any warping of the weldment due to the heat. It may call for a re-design of the weldment to use less weld, welding in a staggered fashion, using a stout fixture, covering the weldment in sand during cooling, and the straightening operations once done welding.
The straightening of steel weldments that have warped would be done with an Oxy-acetylene torch; heat would be applied to the steel in a linear sweep in a slow motion. The steel should have a net contraction, once cooled, following the direction of the sweep.
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A look into the history of steel fabrication…
There are a number of inventions throughout human history that a number of people would mark down as the most important; the wheel, the written word, books, transport, the Internet… One thing that is often overlooked, that’s been around for nearly as long as the written word, is steel fabrication. It was a major development in its day, allowing humans to create better tools, weapons, armour and more. Hunters would make better arrowheads to bring home more food and countries would use the technique to build their armies, but in the modern day, what exactly is steel fabrication used for?
It’s not uncommon to see steel fabrication at work in a number of huge industries in the modern day, which cover all forms of products. Examples of these industries are:
- Arts and crafts
Steel fabrication was one of the leading techniques of craftsmanship and the creation of weapons and tools in order to develop society. The technique proved so versatile that it led to somewhat of a specialisation. In the past, it wasn’t uncommon for miners to process ore into steel, allowing the steel to be turned into weapons or tools that they could sell on for profit.
In the modern industries, there are a number of different steps you can take in order to get ore from the earth and turn it into goods that can be used by millions worldwide. There are a number of types of metals that we use in our day to day lives, all of which are produced from the fabrication process. For example:
Iron and steel are often found in electronic appliances, devices and cars.
Silver is used in both electronic parts and ornamentation.
Gold is used in ornamentation, but it is also a vital part of some electrical equipment, due to the metals being a great conductor of electricity.
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The method of welding is the practice of using heat to join materials together, using equipment that utilises open flame, an electric arc or laser light.
Middle Ages – The Bronze Age is the earliest evidence of welding that can be traced back.
An early example was the welding of gold boxes that belonged to the Bronze Age, the Egyptians had also apparently learnt the art of welding – several of their iron tools were made using the joining method.
1800 – A milestone in the history of welding was the use of open flames (acetylene) as it allowed the manufacture of intricate metal tools and equipments.
The discovery of acetylene was made in 1836 by an Englishman named Edmund Davy; acetylene was since utilised by the welding industry.
Another tool that was used extensively in welding metals was that of a battery operated tool which could produce an arc between carbon electrodes, invented by Sir Humphrey Davy.
1880 – In 1881, Auguste De Meritens, a French scientist succeeded in fusing lead plates by using the heat generated from an arc.
Later an electrode holder was manufactured by Russian scientist Nikolai N. Benardos and his compatriot Stanislaus Olszewski.
1890 – The 1890’s popular method of welding was carbon arc welding.
1900 – Strohmanger first introduced coated metal electrode in 1900, to help with the stability of the arc, a coating of lime would have been applied.
More welding methods would have been developed during this time, including seam welding, spot welding, flash but welding, and projection welding.
1920 – This was the first introduction of automatic welding, specifically used for repairing and molding metals.
1930 – The development of stud welding was in this time period by the New York Navy Yard.
Stud welding was increasingly used for shipbuilding and the general construction industry,
1950 – The CO2 welding process had become popularised by Lyubavskii and Novoshilov in 1953, becoming a part of the process of choice for welding steels.
1960 – Advancements in the 1960s saw dual shield welding, inner shield, and Electroslag welding were among the most important developments in that decade.
Most Recent – The most recent developments in the welding industry include the friction welding process developed in Russia and laser welding.
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