A thermoforming trim tool which comprises a punch side and a die side. The punch side moves to the die side in order to trim molded articles from a heated thermoforming sheet that is disposed therebetween. While the punch side of the tool comprises a plurality of punches, the die side of the tool comprises a plurality of dies, and both the punches and the dies are engaged with upper mount plates. Each of the upper mount plates is engaged with a lower mount plate via one or more location keys. Each of the location keys is configured to provide that the upper mount plates are shifted a pre-determined distance relative to the lower mount plate, thereby providing trim centers which are adjusted to account for pre-determined shrinkage in the sheet.

A thermoforming trim tool which comprises a punch side and a die side. The punch side moves to the die side in order to trim molded articles from a heated thermoforming sheet that is disposed therebetween. While the punch side of the tool comprises a plurality of punches, the die side of the tool comprises a plurality of dies, and both the punches and the dies are engaged with upper mount plates. Each of the upper mount plates is engaged with a lower mount plate via one or more location keys. Each of the location keys is configured to provide that the upper mount plates are shifted a pre-determined distance relative to the lower mount plate, thereby providing trim centers which are adjusted to account for pre-determined shrinkage in the sheet.

The present invention increases the positional accuracy of a floating cutter unit with respect to a press upper die for main trimming. A floating cutter unit is provided with: a floating cutter for cutting scrap from a plate-shaped material, said floating cutter being attached to and used in a trimming press processing device that cuts scrap from a plate-shaped material along a trim line Tr and that additionally cuts scrap along a scrap cut line Sc; a spring that is brought into contact with the tail end surface of the floating cutter and with a holder set for holding the floating cutter so as to be movable in the direction of an axial center O, and that applies reaction force to the floating cutter; and a guide member that is attached to the holder set, brought into contact with the floating cutter, and used to guide movement in the direction of the axial center O.

A process of producing a partially hardened metallic formed part comprises: heating a semi-finished product of hardenable hot-formable steel sheet to a hardening temperature; hot-forming the heated semi-finished product in a combined hot-forming cutting device into a three-dimensional formed part; cutting the formed part in the combined hot-forming cutting device; pressure-hardening the formed part in the hot-forming cutting device into a hardened formed part such that a first partial region is hardened by rapid cooling and that a second partial region of the formed part is heat-treated so as to comprise a greater ductility and a lower strength than the first partial region, wherein the operation of cutting the formed part takes place at least in one of the first and second partial region. A combined hot-forming cutting device can be used to produce a metallic formed part.

A process of producing a partially hardened metallic formed part comprises: heating a semi-finished product of hardenable hot-formable steel sheet to a hardening temperature; hot-forming the heated semi-finished product in a combined hot-forming cutting device into a three-dimensional formed part; cutting the formed part in the combined hot-forming cutting device; pressure-hardening the formed part in the hot-forming cutting device into a hardened formed part such that a first partial region is hardened by rapid cooling and that a second partial region of the formed part is heat-treated so as to comprise a greater ductility and a lower strength than the first partial region, wherein the operation of cutting the formed part takes place at least in one of the first and second partial region. A combined hot-forming cutting device can be used to produce a metallic formed part.

A method for manufacturing a press-formed article (100) includes a first step for forming a base sheet portion, a first rising portion, and a first strip portion from a sheet-shaped workpiece having a first edge portion and a second edge portion; and a second step for forming a second rising portion by causing a strip-shaped first zone including the second edge portion to be disposed between a first upper die and a first lower die from both sides, causing a second zone adjacent to the first zone to be disposed between a second upper die and a second lower die from both sides, and moving the first upper die and the first lower die relative to the second upper die and the second lower die, wherein, in the second step, a part of the second rising portion which is connected to a vertical ridge line (108) is shear-deformed.

A shearing die for preventing damage of a die tool in shearing of a super-high-tension steel sheet and a press-forming method using the same. The shearing die for shearing a metal sheet in a direction intersecting a first-sheared edge of the metal sheet in press-working including a plurality of shearing processes to produce a formed article from the metal sheet by press-forming, in which the shearing die comprises a fitting part that can detach a shearing blade in the vicinity of a region coming in contact with an end of the first-sheared edge.

There is provided a method for manufacturing a bottomed cylindrical body, the method being capable of achieving both a conventional hard can manufacturing process such as drawing and ironing and reduction in the cost and the environmental load in a degreasing step. The method for manufacturing a bottomed cylindrical body includes a lubricant application step of applying liquid (lubricant) having a viscosity of lower than 200 mPa.Math.s to a surface of a metal plate, a drawing step of drawing the metal plate to which. the lubricant has been applied, with use of a forming member having a processing surface having a hardness of Hv 1000 to 12000, an ironing step of ironing, with use of another forming member having a processing surface having a hardness of Hv 1500 to 12000, a workpiece with a coolant interposed between the workpiece and the another forming member, to form a bottomed cylindrical body, and a degreasing step of degreasing oil on a surface of the bottomed cylindrical body with use of a cleaning agent. The concentration of oil contained in the coolant is lower than 4.0 percent by volume. The cleaning agent contains any one of sulfuric acid, hydrofluoric acid, potassium carbonate, sodium hydroxide, and potassium hydroxide. The temperature of the cleaning agent in the degreasing step is lower than 75° C.

There is provided a method for manufacturing a bottomed cylindrical body, the method being capable of achieving both a conventional hard can manufacturing process such as drawing and ironing and reduction in the cost and the environmental load in a degreasing step. The method for manufacturing a bottomed cylindrical body includes a lubricant application step of applying liquid (lubricant) having a viscosity of lower than 200 mPa.Math.s to a surface of a metal plate, a drawing step of drawing the metal plate to which. the lubricant has been applied, with use of a forming member having a processing surface having a hardness of Hv 1000 to 12000, an ironing step of ironing, with use of another forming member having a processing surface having a hardness of Hv 1500 to 12000, a workpiece with a coolant interposed between the workpiece and the another forming member, to form a bottomed cylindrical body, and a degreasing step of degreasing oil on a surface of the bottomed cylindrical body with use of a cleaning agent. The concentration of oil contained in the coolant is lower than 4.0 percent by volume. The cleaning agent contains any one of sulfuric acid, hydrofluoric acid, potassium carbonate, sodium hydroxide, and potassium hydroxide. The temperature of the cleaning agent in the degreasing step is lower than 75° C.

A technology capable of suppressing end cracking due to a delayed fracture without restrictions on the target pressed component shape. When it is estimated that the end cracking due to the delayed fracture in an end of a material to be pressed is concerned, double cutting processing including performing cutting processing of the end containing at least a place where the end cracking is concerned twice is provided as preprocessing for the press forming causing the concern about the end cracking. The double cutting processing includes performing, in first cutting, cutting to form a partial beam-shaped projection portion at a position containing the place where the end cracking is concerned, and cutting the projection portion in second cutting.