internal high-pressure forming hydraulic press

internal high-pressure forming hydraulic press

Internal high-pressure forming technology is one of the lightweight forming technologies for auto parts, it uses liquid or gas as the transfer medium, through precise control of internal pressure, axial feeding, with mold cavity, and finally made of metal hollow billets constitute the whole complex variable cross-section components. The internal high-pressure forming equipment is suitable for the manufacture of complex hollow components with different cross-sections in the industries of aerospace, nuclear power, petrochemical, drinking water systems, pipeline systems, automobiles, bicycles, etc.

Classification of internal high-pressure forming hydraulic presses

1. Multi-station automatic presses:

There are multiple stations on a press with multiple forming dies installed, and the blank moves automatically to the next station in sequence. In one stroke of the press, each station performs each forming process simultaneously to manufacture the workpiece.

2. Rotary head presses:

Between the ram and the table, there is a rotating head where dozens of dies can be mounted, and the dies can be selected as needed. The blank is placed on the die and does not move anymore. After each stroke is completed, the rotary head rotates one position to finish the process. This press has high positioning accuracy and easy product adjustment. One machine is multi-purpose, mostly used for punching instrument base plates and panels. The rotary head press can be equipped with numerical control system, which can automatically complete complex punching work by selecting the die and plate forming parts according to the programming instruction.

3. Double-action deep drawing presses:

There are internal and external sliders for deep drawing of cup-shaped parts. Before deep drawing, the outer slider presses the outer edge of the plate first, and the inner slider drives the punch to pull the cup to prevent the outer edge of the plate from wrinkling. After the drawing is completed, the inner slider returns first and then releases the outer slider. The ratio of the nominal working force of the inner and outer slider is (1~1.7):1. 4.

4. Cold extruder:

Used to extrude metal parts in the cold and warm state, such as qiang shell, toothpaste tube, etc.. Cold extrusion presses are generally vertical, with good rigidity, high precision guidance, high working pressure, small working surface, long length, etc. Working stroke.

5. Hot-die forging presses:

Used for die forging production. Machine body stiffness, long guiding surface, strong ability to bear deflection load. In the past, the crank linkage mechanism was replaced by a double-slider type and wedge type to improve rigidity. The double-slider type structure is relatively simple and lightweight; the wedge-type structure has a large bearing area, but the transmission efficiency is low. When die forging, the slider is easy to be stuck near the lower stop (commonly known as a boring car), so there is a die release device. The machine is equipped with upper and lower ejector devices, which can realize multi-die forging and the forgings are highly accurate and suitable for mass production. The maximum specification is 160 MN.

Internal high-pressure forming hydraulic press is suitable for bending, forming, and flanging of center load parts. Equipped with a punching buffer, it can also be used for punching and drop processing. This product is preferred for a wide range of applications in the automotive, aviation, aerospace, and pipeline industries.

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