A fluid forming apparatus includes a main frame having at least two tensile frame struts extending along a clamping axis and adapted to carry a tensile force along the clamping axis. An upper pressure plate and a lower pressure plate are arranged inside a frame space, and a tool space is disposed between the upper and the lower pressure plate, the tool space being adapted to take up a fluid forming tool mold. A first closure pressing unit is arranged inside the frame space such that by a pressure force exerted by the closure pressing unit, a pressure closing force along the clamping axis is exerted onto the upper and lower pressure plates, wherein the upper pressure plate, the lower pressure plate, the tool space and the first closure pressing unit are arranged in a functional serial arrangement along the clamping axis.

An electrohydraulic forming device includes a tank having a tank inner wall and inside of which are positioned a mold, a first electrode, and a second electrode. A free first reflector is placed in the tank and surrounds the mold, the first electrode, and the second electrode.

An electrohydraulic forming device includes a tank having a tank inner wall and inside of which are positioned a mold, a first electrode, and a second electrode. A free first reflector is placed in the tank and surrounds the mold, the first electrode, and the second electrode.

A forming device that forms a metal pipe by blow forming includes: a gas supply part that supplies a gas to a metal pipe material to expand the metal pipe material; a die attachment part to which a die that is brought into contact with the expanded metal pipe material to form the metal pipe is attached; a gas discharge part that discharges the gas from the metal pipe material; and a pressure detector that detects a pressure of the gas, the gas supply part includes a gas compression part that compresses the gas, and a supply line that transfers the gas compressed by the gas compression part to the metal pipe material, the gas discharge part includes a discharge line that transfers the discharged gas, and the pressure detector is provided in each of the supply line and the discharge line.

A forming device that forms a metal pipe by blow forming includes: a gas supply part that supplies a gas to a metal pipe material to expand the metal pipe material; a die attachment part to which a die that is brought into contact with the expanded metal pipe material to form the metal pipe is attached; a gas discharge part that discharges the gas from the metal pipe material; and a pressure detector that detects a pressure of the gas, the gas supply part includes a gas compression part that compresses the gas, and a supply line that transfers the gas compressed by the gas compression part to the metal pipe material, the gas discharge part includes a discharge line that transfers the discharged gas, and the pressure detector is provided in each of the supply line and the discharge line.

A method of, and arrangement for, producing shaped hollow metal objects by a hot process. A metal hollow semi-finished-product with at least one opening is heated to a forming temperature and placed into a cavity, whose shape corresponds to the desired final external shape of the hollow object. Then the cavity is sealed and water and/or steam is introduced therein. After the final shape of the semi-finished-product is achieved, the semi-finished-product is removed. The cavity is formed by a split mould, whose opening's entry edge has an expanded portion, against which a sealing feature is oriented. The outer surface of the sealing feature is arranged to close against this expanded portion. The sealing feature is also provided with a means of supply of water and/or steam, and a tube through which the water and/or steam is supplied. This tube extends into the interior space of the semi-finished-product, and can be provided with nozzles.

A method of, and arrangement for, producing shaped hollow metal objects by a hot process. A metal hollow semi-finished-product with at least one opening is heated to a forming temperature and placed into a cavity, whose shape corresponds to the desired final external shape of the hollow object. Then the cavity is sealed and water and/or steam is introduced therein. After the final shape of the semi-finished-product is achieved, the semi-finished-product is removed. The cavity is formed by a split mould, whose opening's entry edge has an expanded portion, against which a sealing feature is oriented. The outer surface of the sealing feature is arranged to close against this expanded portion. The sealing feature is also provided with a means of supply of water and/or steam, and a tube through which the water and/or steam is supplied. This tube extends into the interior space of the semi-finished-product, and can be provided with nozzles.

A method for quick forming of a metal sheet. In an embodiment, the method includes the following steps: placing a metal sheet blank to be formed on a forming mold; introducing high-pressure gases with equal pressures simultaneously into upper and lower enclosed cavities respectively formed by the metal sheet blank and the sealing mold, and the metal sheet blank and the forming mold; heating the metal sheet blank to a preset forming temperature condition; quickly releasing the high-pressure gas from the cavity formed by the metal sheet blank and the forming mold, such that the metal sheet blank bulges; and discharging the gas from the cavity formed by the metal sheet blank and the sealing mold, and opening the mold to obtain a formed metal sheet part.

A method for quick forming of a metal sheet. In an embodiment, the method includes the following steps: placing a metal sheet blank to be formed on a forming mold; introducing high-pressure gases with equal pressures simultaneously into upper and lower enclosed cavities respectively formed by the metal sheet blank and the sealing mold, and the metal sheet blank and the forming mold; heating the metal sheet blank to a preset forming temperature condition; quickly releasing the high-pressure gas from the cavity formed by the metal sheet blank and the forming mold, such that the metal sheet blank bulges; and discharging the gas from the cavity formed by the metal sheet blank and the sealing mold, and opening the mold to obtain a formed metal sheet part.

A method for shaping a blank comprising a metal includes a step of loading the blank onto a first die, a step of bringing the first die and a second die together, a step of forming a seal around the blank, and a step of injecting a pressurized molten salt into a space in the blank to supply a hydraulic pressure to the blank.