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Of all the technology we take for granted today, perhaps one of the most overlooked yet most important is the ability to form different metals into thin and flat pieces. Granted, it's not as exciting as the internet, the aircraft or sachets of microwavable rice, however as the following list demonstrates, it would be pretty hard to imagine a world without it:
Cutlery: Admittedly, the mention of sachets of microwavable rice earlier was done in jest. It does however allude to one of the multitude of uses sheet metal, in this case stainless steel, has; cutlery. Grade 410 stainless steel, with its heat treatable characteristics and dull finish, is perfect to create the knives, spoons and forks we are so reliant on to eat our microwavable rice
Aircraft: Although the Wright brother's plane involved no metal in its construction, in the modern day sheet metal is invaluable to the construction of modern aircraft. 6061 aluminium alloy, for example, with its high weldability and general light weight, is perfect for the construction of aircraft structures. Therefore, without the ability to form sheet metal from this alloy the prospect of large scale commercial flight would be a distant dream.
Pipes: Not exactly the most glamorous inclusion on this list, but nonetheless pipes made from copper sheet metal are vital in the construction trade. It's pliability, durability, resistance to corrosion and high electrical conductivity make it a perfect material for a variety of uses. Formed using a rolling process, there are many ways that copper sheets can be further manufactured, such as brake forming, flashing, hydroforming, laminating, and stamping.
Transformers: Ignoring the temptation to write about robots in disguise, it is important to note that without sheet metal it would be impossible to imagine a world in which electronic devices, from the kettle to the smart phone, existed. This is because numerous components, such as transformers, are formed from iron and other metals with high magnetic permeability. Also known as laminated steel cores, the characteristics of these metals are vital in allowing Transformers to transfer electrical energy from one current to another
Jewellery: Whilst perhaps not as vital to humanity's progress as the plane or the electrical component, jewellery is undoubtedly one of the more familiar results of certain types of sheet metal work. Gold and silver are, perhaps unsurprisingly, commonly formed into sheets of metal for the creation of jewellery, but other less expensive metals are also regularly used. Grade 1100-H14 Aluminium, for example, is particularly widely used. Highly chemical and weather resistant, this grade of aluminium is ductile enough to allow for deep drawing and welding, making it a perfect metal for earring, necklaces and bracelets.
