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.

A device and a method for manufacturing a laminated iron core are provided for including: a first supply unit of supplying a first adhesive to a first part of a predetermined region, the predetermined region corresponding to a punched member of a strip-shaped metal sheet intermittently fed in one predetermined direction; a second supply unit arranged at a downstream side in a conveyance direction of the metal sheet with respect to the first supply unit, and of supplying a second adhesive to a second part different from the first part of the predetermined region; and a punching unit of punching the predetermined region of the metal sheet to which the first supply unit and the second supply unit supply the first adhesive and the second adhesive, so as to form the punched member having the first adhesive and the second adhesive applied on the first part and the second part.

This structural member (W1) is manufactured using a structural member manufacturing device including: a first clamping part (10) having a first lower clamping member (11) and a second upper clamping member (12) disposed to face each other and capable of being opened and closed; a second clamping part (20) having a third lower clamping member (21) and a fourth upper clamping member (22) disposed to face each other corresponding to the first lower clamping member (11) and the second upper clamping member (12) and capable of being opened and closed; and clamping part driving means for allowing the first clamping part (10) and the second clamping part (20) to be relatively separated from each other while causing a position in an X-axis direction and a position in a Z-axis direction to correspond to each other. That is, the structural member (W1) is manufactured by a structural member manufacturing method in which the first clamping part (10) and the second clamping part (20) are relatively separated from each other by the clamping part driving means.

This structural member (W1) is manufactured using a structural member manufacturing device including: a first clamping part (10) having a first lower clamping member (11) and a second upper clamping member (12) disposed to face each other and capable of being opened and closed; a second clamping part (20) having a third lower clamping member (21) and a fourth upper clamping member (22) disposed to face each other corresponding to the first lower clamping member (11) and the second upper clamping member (12) and capable of being opened and closed; and clamping part driving means for allowing the first clamping part (10) and the second clamping part (20) to be relatively separated from each other while causing a position in an X-axis direction and a position in a Z-axis direction to correspond to each other. That is, the structural member (W1) is manufactured by a structural member manufacturing method in which the first clamping part (10) and the second clamping part (20) are relatively separated from each other by the clamping part driving means.

A modular tooling die for an axle housing includes a plurality of separable and coaxially aligned die sets. Each die set may include a cam driver that is engageable with first and second cam slide assemblies. The cam slide assemblies move toward one another along an axis that extends perpendicularly to an axis along which the cam driver translates. Multiple die sets are provided for possible use in a single press depending on the particular axle housing geometry to be manufactured. A wide variety of different geometrical configurations may be formed by simply replacing one or more die sets and inserting a differently sized or shaped blank within the press. A method of manufacturing various axle housings and the associated modular tooling is described.

A progressive pressing method includes: a first bead molding step of molding a first bead having a length of a second predetermined distance extending in a longitudinal direction of the elongated metal plate, in a side part of a region which becomes a first product part of the elongated metal plate; a first conveying step of conveying the elongated metal plate in the longitudinal direction by a feed amount which is a first predetermined distance; and a second bead molding step of molding a second bead having a length of the second predetermined distance extending in the longitudinal direction of the elongated metal plate, so as to link with the first bead molded in the first bead molding step, in a side part of a region which becomes a second product part of the elongated metal plate, in which the second predetermined distance is longer than the first predetermined distance.

A press machine includes upper and lower crankshafts having the same amount of eccentricity and driven in opposite directions with a phase difference of 180 degrees, a slide and a bolster rotatably connected to eccentric parts of the upper and lower crankshafts, respectively, a parallel maintaining mechanism configured to maintain a parallelism between the slide and the bolster, and a clamp mechanism including an upper clamp attached to the slide and a lower clamp attached to the bolster. The slide and the bolster move toward/away from each other and advance/retreat together along a feed direction of a material in accordance with rotational driving of the upper and lower crankshafts. The clamp mechanism clamps the material when the slide and the bolster move toward each other and unclamps the material forwardly fed while being clamped when the slide and the bolster move away from each other.

A press machine includes upper and lower crankshafts having the same amount of eccentricity and driven in opposite directions with a phase difference of 180 degrees, a slide and a bolster rotatably connected to eccentric parts of the upper and lower crankshafts, respectively, a parallel maintaining mechanism configured to maintain a parallelism between the slide and the bolster, and a clamp mechanism including an upper clamp attached to the slide and a lower clamp attached to the bolster. The slide and the bolster move toward/away from each other and advance/retreat together along a feed direction of a material in accordance with rotational driving of the upper and lower crankshafts. The clamp mechanism clamps the material when the slide and the bolster move toward each other and unclamps the material forwardly fed while being clamped when the slide and the bolster move away from each other.

A method of making steel square and rectangular pipe employs a die stamping operation to score steel plate and a machine to forming such parts.

A method of making steel square and rectangular pipe employs a die stamping operation to score steel plate and a machine to forming such parts.