A method for shaping a blank comprising a metal includes a step of loading die blank onto a first die, a step of bringing the first die and a second die together, 3 step of forming a seal around the blank, and a step of injecting a pressurized molten salt into a space in die blank to supply a hydraulic pressure to the blank.

A method for shaping a blank comprising a metal includes a step of loading die blank onto a first die, a step of bringing the first die and a second die together, 3 step of forming a seal around the blank, and a step of injecting a pressurized molten salt into a space in die blank to supply a hydraulic pressure to the blank.

The controller controls the gas supply of the gas supply unit so as to maintain a pressure in a metal pipe material at a first pressure when a gas is supplied into the metal pipe material which is formed into a pipe portion in a main cavity portion in a state where an upper die and a lower die are joined to each other. It is possible to prevent pressure drop in the pipe portion caused by cooling of the pipe portion due to a contact between the dies, and the pipe portion. Thus, it is possible to suppress a decrease in a force for pressing the pipe portion against the dies. It is possible to suppress a decrease in adhesion between the pipe portion and the dies when the metal pipe is formed, and it is possible to suppress occurrence of variations in hardenability in the pipe portion.

An automotive component manufacturing method includes a molding process of pressing a portion of a hollow tube formed from a metal material, or a composite material including a metal and a resin, so as to deform the portion of the hollow tube, from a tube outer side toward a tube inner side, to beyond an axial center of the hollow tube, and mold the portion of the hollow tube into a deformed section deformed with a concave profile; and a deformation process of deforming a location having a high level of residual stress in a closed cross-section configured by the deformed section so as to deform the location out-of-plane.

The present invention discloses a special hydraulic press for bulging pressing forming of an automobile axle housing and a pressing forming method. A hydraulic press body is a closed frame consisting of an upper cross beam, a lower cross beam, four stand columns I, II, III, and IV, four vertical pull rods I, II, III, and IV, and four transverse pull rods I, II, III, and IV, and is used for balancing a deformation force up to 3000 T in the vertical direction or the horizontal direction in the pressing forming process. During pressing forming, the downward speeds of a main hydraulic cylinder, small left and right vertical hydraulic cylinders are precisely controlled to prevent the left end, the right end and the middle of the tube blank from bending.

A forming apparatus includes: an upper die and a lower die having forming surfaces corresponding to outer surfaces of a pipe with protrusions; a moving mechanism that moves the upper die and the lower die such that a forming space for forming the pipe with protrusions is defined between the forming surfaces of the upper die and the lower die; and a gas supply unit that supplies gas to a forming material to expand the forming material. A control unit controls the movement of the upper die and the lower die by the moving mechanism and the supply of gas to the forming material by the gas supply unit such that the forming material is formed into the pipe with protrusions in the forming space.

A forming apparatus includes: an upper die and a lower die having forming surfaces corresponding to outer surfaces of a pipe with protrusions; a moving mechanism that moves the upper die and the lower die such that a forming space for forming the pipe with protrusions is defined between the forming surfaces of the upper die and the lower die; and a gas supply unit that supplies gas to a forming material to expand the forming material. A control unit controls the movement of the upper die and the lower die by the moving mechanism and the supply of gas to the forming material by the gas supply unit such that the forming material is formed into the pipe with protrusions in the forming space.

A forming device which expands a metal pipe material to form a metal pipe having a pipe portion and a flange portion includes first and second dies paired with each other and including pipe forming surfaces for forming the pipe portion and flange forming surfaces for forming the flange portion, a drive unit that drives at least one of the first and second dies, and a controller that controls the drive unit, in which, on at least one of the flange forming surfaces of the first and second dies, a protrusion portion protruding by an amount not to abut against the other flange forming surface when the dies are closed is formed and the controller controls the drive unit to form a thin wall portion at which a thickness of the flange portion becomes partially small at the flange portion by the protrusion portion pressing the flange portion.

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.

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.