What Are Hydraulic Presses or Mechanical Presses?

​Stamping presses, also known as presses, are a specific type of machine tool that is often used in metal forging to transfer energy through a certain distance and force.

The stamping press machine is a machine that can process sheet metal into a desired shape. It is commonly used for metal stamping to convert a flat metal sheet into a specific shape. It can include a variety of metal forming techniques: blanking, punching, bending and perforating.

​The punching machine is suitable for a closed mold, further forging the component, and applying it by applying energy to the work piece. The size of the punch and the amount of output force will vary, and one of the punches will work to plastically deform the metal block. Different types of punching machines are also derived depending on the type of transfer or nature required for the presses.

The stamping press can be roughly divided into hydraulic presses or mechanical presses.
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Hydraulic Press:
Hydraulic press machine uses liquid pressure to release energy, and valves to increase or decrease the pressure of liquid in the chamber. Hydraulic presses are more common than other types, but on the other hand, hydraulic presses are the most powerful punches. The machine can apply 75,000 tons of power, even higher.

The working principle is that depending on the difference in fluid pressure, the liquid can be injected or reduced above or below, and the pressure is changed to allow the piston to rise or fall.
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Mechanical Press:
The mechanical press machine atmosphere has a wider variety of machine types, which convert the rotational force of the motor into pressure acting on the object.
Mechanical presses are characterized by rapid and continuous application of pressure over a limited distance, often used for metal forging or sheet metal processing. The pressure of mechanical punching machines can reach 12,000 tons.

Crank Press:
The crank press moves together with the drive shaft and rotates back and forth to transmit the force to the object. The transmission path of the crank press is long.
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Knuckle Press:
Through the connecting rod design, the huge energy of the motor can be transmitted.

Eccentric Press:
The eccentric press uses an electric motor to drive the eccentric shaft to rotate the eccentric shaft in the connecting rod. As the motor rotates, the center of the drive remains stable, but the center of gravity of the shaft changes, thereby provides energy transfer.
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Rack and Pinion Press
Through the movement of gears and racks, the transmission of energy is driven.
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Screw Press:
By rotating the screw, the energy of the rotation is driven, and the pressure is applied. The screw press operates slowly and can generate a relatively large constant force.

The stamping press machine can meet the needs of mass production, and has a fast turnaround time, high quality and low cost. Match the right type of press according to different needs.

Article Source: libraryofmanufacturing