The present invention has: a step for heating a resin or a metal in a state in which the resin or metal is sandwiched by a mold provided with a projection that is constituted from an elastic body having a heat resistance temperature higher than the temperature at which the resin or the metal softens, and a support body which is larder than the mold and which is softened by heat at a higher temperature than the resin or the metal, while a force is applied to the mold in the direction toward the resin or the metal.

The present invention has: a step for heating a resin or a metal in a state in which the resin or metal is sandwiched by a mold provided with a projection that is constituted from an elastic body having a heat resistance temperature higher than the temperature at which the resin or the metal softens, and a support body which is larder than the mold and which is softened by heat at a higher temperature than the resin or the metal, while a force is applied to the mold in the direction toward the resin or the metal.

A heat sink faces an exhaust port of a blower fan in use, and includes: a first plate-shaped portion; a second plate-shaped portion disposed in parallel with the first plate-shaped portion having a gap therebetween; a plurality of fins that stand up between the first plate-shaped portion and the second plate-shaped portion and are disposed side by side with a gap therebetween to define an air flow path between the fins, through which air flows from the exhaust port; and a protrusion that is disposed at a part of each fin including a center of the upright height, and protrudes into the air flow path.

A tool and associated method for forming an attachment pad on a sheet material made from high strength steel. The tool includes a housing, an anvil supported on the housing and defining a working axis for forming the pad, and a slide block supported on the housing for movement at least along the working axis of the anvil. A die block is supported on the housing opposite the slide block, and is movable in directions along the working axis. The die block cooperates with anvil to form the pad at a target location defined along the working axis. The tool further includes a heating device supported for movement to and between first and second positions relative to the target location. The first position is adjacent to and aligned with the target location, while the second position is displaced from the first position and away from the target location.

An method of manufacturing a hot press-formed member comprises heating a blank of an aluminum-based plated steel sheet in a heating furnace, removing the heated blank from the heating furnace and conveying the removed blank between an upper mold portion and a lower mold portion of a mold, mounted on a press, to be seated; and performing a forming process after the upper mold portion of the mold is in contact with the seated blank.

A panel-shaped formed product made of a metal sheet includes a top panel portion, an opening portion, and a vertical wall portion. The top panel portion is polygonal. The opening portion is provided in the top panel portion. The vertical wall portion extends from at least not less than two adjacent borders among the borders of the top panel portion. At least one pair of each vertical wall portion of pairs of adjacent vertical wall portions of the vertical wall portions has a stepped portion. As a result, the panel shaped formed product has fewer defects such as cracks and wrinkles even when it has a shape that is difficult to form.

An exemplary die assembly includes a die member, a blankholder, and a collapsible spacer moveable back-and-forth between an extended position and a collapsed position. The collapsible spacer establishing a first gap between the die member and the blankholder in the extended position. The collapsible spacer establishing a second, smaller gap between the die member and blankholder in the collapsed position. An exemplary forming method includes maintaining a distance between a die member and a blankholder with a collapsible spacer when forming a workpiece into a desired shape, and collapsing the collapsible spacer to permit the die member and the blankholder to move closer together.

An exemplary die assembly includes a die member, a blankholder, and a collapsible spacer moveable back-and-forth between an extended position and a collapsed position. The collapsible spacer establishing a first gap between the die member and the blankholder in the extended position. The collapsible spacer establishing a second, smaller gap between the die member and blankholder in the collapsed position. An exemplary forming method includes maintaining a distance between a die member and a blankholder with a collapsible spacer when forming a workpiece into a desired shape, and collapsing the collapsible spacer to permit the die member and the blankholder to move closer together.

An apparatus for the controlled return of the stems in cylinders of the types that can be applied to a press for stamping sheet metal, comprising: at least one fluid-operated cylinder), at least one hydraulic accumulator which is fluidically connected to the at least one cylinder by means of a hydraulic circuit which comprises: a duct for the discharge of the working fluid from the at least one cylinder and a duct/branch for the intake of the working fluid in the hydraulic accumulator, a duct for loading the working fluid in the at least one cylinder and at duct/branch for the output of the working fluid from the hydraulic accumulator.

An aspect of the present invention relates to a cold-rolled steel plate for hot forming, which is excellent in corrosion-resistance and spot-weldability, contains, by weight %, C: 0.1-0.4%, Si: 0.5-2.0%, Mn: 0.01-4.0%, Al: 0.001-0.4%, P: 0.001-0.05%, S: 0.0001-0.02%, Cr: 0.5% to less than 3.0%, N: 0.001-0.02%, and a balance of Fe and inevitable impurities, satisfying formula (1) below, and includes an Si amorphous oxidation layer continuously or discontinuously formed at a thickness of 1 nm-100 nm on the surface thereof. Formula (1): 1.4≤0.4*Cr+Si≤3.2 (wherein element symbols denote measurements of respective element contents by weight %).