Est. 1946
sales@winward.co.uk
01922-744-645
Experts In Metal Spinning & Metal Pressing
An Introduction to
Metal Press Systems
Metal pressing is a basic form of machining
and tooling, but it is also one of the ...
Hydraulic Press
The operation of this press depends on Pascal’s
principle stating that a confined fluid transmits an
equal...
Mechanical Presses
This type of press is the first of the three, and is
still in use today; though the machines themselves...
Pressurised gas has a lesser tendency of igniting as
compared to hydraulic oil, and pneumatic
pressure systems have a long...
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Experts in Metal Spinning & Metal Pressing

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Metal pressing is a basic form of machining and tooling, but it is also one of the most important.

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Experts in Metal Spinning & Metal Pressing

  1. 1. Est. 1946 sales@winward.co.uk 01922-744-645 Experts In Metal Spinning & Metal Pressing
  2. 2. An Introduction to Metal Press Systems Metal pressing is a basic form of machining and tooling, but it is also one of the most important. Important fields such as automotives, medicine, aerospace, and the military simply will not function without the parts produced by this simple service. There are three different types of presses: the hydraulic press, the pneumatic press, and the mechanical press. They all serve the same basic function, but have decidedly different, albeit subtle results in terms of the products they produce.
  3. 3. Hydraulic Press The operation of this press depends on Pascal’s principle stating that a confined fluid transmits an equal force to an area perpendicular to a container wall. The machine has two pistons: the lever and the press; the system maintains a constant force of pressure between both. When the lever is manipulated, the pressurized liquid inside exerts a force equal to the area of the large piston, causing it to push downward. Hydraulic presses are ideal in terms of control. Because of the many calculations involved in its operation, the force and pressure can be manipulated to the smallest measured degree to produce better products.
  4. 4. Mechanical Presses This type of press is the first of the three, and is still in use today; though the machines themselves are vastly different, the principles of force remain. The mechanical press depends on raw force and the strength of a platform to get the job done. This press is ideal for more stubborn metals that need to be formed into simple shapes. Pneumatic Presses Pneumatics is a division of mechanical technology that deals with the use of pressurized gas to apply force. The principle is similar to hydraulics, with the only difference in the type of matter used. The main reason for using pneumatics is safety and simplicity of design.
  5. 5. Pressurised gas has a lesser tendency of igniting as compared to hydraulic oil, and pneumatic pressure systems have a longer service life and require minimal maintenance. The only drawback for pneumatics is because of the nature of gas molecules, some energy is lost in the transfer. In addition, pneumatic systems need to ‘bleed off’ pressurized gas in order to relive tension in the system after every operation. The practice of metal pressing will not stop anytime soon, and neither will the evolution of its technology. RESOURCES: http://www.britannica.com/EBchecked/topic/445445/Pascals-principle http://winward.co.uk/metal-pressing/ http://www.wisegeek.com/what-is-a-machine-press.htm

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