Hydraulic Press Working Principle
A hydraulic press works on the principle of Pascal’s law. Pascal’s law states that pressure acts at an angle of 90 degrees to the area of a closed system. In a hydraulic press, the piston acts as a pump. This is achieved by using small-diameter tubing. This enables the fluid to exert a greater force on a smaller cylinder. During its working principle, a hydraulic press can exert force on a variety of materials, including metals and plastics.
The hydraulic fluid flows between the two cylinders, which are connected to each other via a pipe. The hydraulic fluid pushes a plunger, which is similar to a mechanical actuator. This pressure pushes the ram downward and forces the plane slug into the die. This pressure causes the workpiece to stretch or bend, depending on the shape and size of the die. When the fluid reaches a certain pressure level, the valve automatically activates.
The hydraulic press uses a hydraulic pump to supply pressure. The pump may be electric, pneumatic, or manual. The pump creates a fixed pressure, which determines the amount of force applied to the material. The press’ cylinder then extends and makes contact with the material. The pump is responsible for regulating the pressure, which is what drives the press’s rams. In addition, the cylinder is repositioned as needed to make small precision parts.