Definition of a hydraulic press.
Hydraulic presses are pressing machines applying cylinders to produce high pressure strength. These machines make use of hydraulic equivalent of a power-driven rod.
Hydraulic press was invented in England by Joseph Bramah.
Principles of Operation.
Prior to realizing the machine operation, we need to study the rule offered by Pascal. Its definition is as the following:
Changes in pressure in all points of a closed fluid at rest is transferred without reduction to any point in it.
Let us go on to the discussion of operation principles of hydraulic presses. Pascal`s rule lies at the base of the press operation. While working a small strength is forced to the restricted areas of the fluid and certain compressing force is generated in it. This compression turns into a strength with more broad openings and owing to larger space a greater outlet strength is produced. Throughout the procedure power-driven advantage or lever is gained.
Aplications of hydraulic press
- Aircraft industries
- Automobile industries
- Industry of thermoplastics
- Carbon fiber casting
- Glass mat transfer GMT
- Moulding of transfer resins
- Sheet moulded compounds
- Formation of metal materials
Deep-draw, punch, blank applications as well as molding, bending and hammering.
Hydraulic press versions.
According to design hydraulic presses versions are:
- Universal presses
- Upright-framed presses
- Lateral presses
- One-columned presses
- Four-columned presses.
Benefits of hydraulic presses.
- Inbuilt overloading defense
- More safety as opposed to power-driven presses
- More compacted
- Low tooling costs owing to inbuilt overloading defense.