For many years if someone did not want to use rivets to secure two sheets of metal together, they would weld the metal together. Although welding does produce a good seal, there are safety concerns when welding. Perhaps the main safety concern with welding is the possibility of the welder getting an electric shock. A electric shock of only 50 volts could cause injury to or even the death of a welder and so extreme safety measures have to be taken when welding to avoid a shock of any kind. Another safety concern when welding is the risk of fire. Some welding processes can create temperatures of up to 10,000 degrees Fahrenheit and therefore the process has the potential to cause a fire or even an explosion.
The welding process also creates fumes that can be dangerous to health and so another safety precaution that has to be observed is that any welding is done either in the open air or at least in a place where there is adequate ventilation. Although there are many other safety concerns associated with welding, the last major one is that the welder could receive burns to the eyes or other parts of their body if they do not wear adequate personal protection equipment, such as goggles or a mask.
With all the safety concerns associated with welding, there is obviously a relatively cost in taking adequate safety precautions to secure the safety of personnel which increases the costs of health and safety overall. There is now however a process called clinching that can seal two sheets of metal together without much cost in terms of health and safety. Although safety precautions of some kind or other should always be taken in any working environment, clinching does not has a need for fire and so risk of burns or harmful fumes are not a concern, making it a much cheaper option for many engineering tasks. As can be seen on the website http://www.juradotools.com/en/clinching-clinciatura/, clinching is a process that joins sheets of metal together by use of a die or punch and a clinching machine which is similar to pliers. The pliers apply pressure to the die which in turn applies pressure to the sheets of metal to be joined.
This pressure causes the sheets of metal to form what has become known as a button which keeps them securely locked together. An added benefit of the clinching process is that the join is not affected by weather or chemicals, making it ideal for use in the oil and gas industries. It is an easier process than riveting or screwing the sheets of metal together and requires less expense in terms of quality control. This process is being adopted by all areas of engineering and industry and it is also even being considered for use in the aerospace business. The process has already shown that it can have uses within the medical industries and is currently undergoing further research in that area to try and discover yet more uses for it.