Disclosed herein is a press molding method for forming a press-molded product having a flange including a special-shaped portion. The method includes: a trimming step of determining an outer peripheral edge of the flange and forming the special-shaped portion; and a finishing step of molding the flange into a final product shape position of the press-molded product after the trimming step. The flange includes a first flange portion including at least a portion of an outer peripheral edge of the special-shaped portion. In the trimming step, the first flange portion is press-molded into a preform position deeper in a thickness direction of the first flange portion than a final product shape position of the first flange portion, and in the finishing step, return molding of lifting the first flange portion in the thickness direction of the first flange portion to the final product shape position of the first flange portion is performed.

A punch and die set and selection apparatus adapted for sheet material forming, to work cooperatively with an automated punch press to select one of a set of punches and dies to operate within said apparatus to be engaged with the punch-press load-applying ram and tool holders, and to compel or allow the non-selected dies to be moved away from the sheet material so as not to impinge on or damage the sheet material being formed.

A forging and inclined window hole punching composite die includes an upper die holder, a connection sleeve, an upper die sliding sleeve, a pressure plate, inclined window puncher pins, a center puncher pin, first connection screw rods, first springs, second connection screw rods, second springs, hydraulic assistant systems, a lower die and a bottom plate. Bottom surface of the pressure plate of the composite die is a plane to avoid deformation of a front molding surface. Hydraulic power is added to the inclined window puncher pins to increase the pressure for punching inclined holes, avoid quality problems and increase a demolding force. A multi-split synchronous hydraulic device may well realize synchronization of the plurality of inclined window puncher pins.

A method for monitoring the position and assessing the correct position P.sub.i of a work slide (5) of a wedge drive tool (2) in a press (11), without a position sensor. The slide (5) of the wedge drive tool (2) is actuated from an end position (X.sub.E) back to the starting position (X.sub.A) of the slide (5) by a spring (10). The spring (10) is arranged in the wedge drive tool (2). The press (11) is opened from a lower press position to an upper press position while a slide bed (5B) of the wedge drive tool (2) is relieved. The position of the slide (5) is indirectly detected in that at least the restoring force of the spring (10) is detected and evaluated.

A gutter punch is described herein including a base having a top side and a bottom side, a first side wall, a second side wall, wherein the first and second side walls are attached to the bottom side of the base and angle inwardly and downwardly from the base, a front wall, a back wall, wherein the front wall and the back wall are attached to the bottom side of the base and angle inwardly and downwardly from the base, a gutter punch, wherein the gutter punch is connected approximately in the center of each of the connecting plates and is substantially perpendicular to the connecting plates, and a handle connected to the top side of the base.

The disclosure is not limited in its execution to the previously indicated, preferred exemplary embodiments but rather a number of variants are conceivable which make use of the presented solution even in the case of basically differently designed embodiments. Therefore, the side sliding plates 10, 30 can be designed on at least three side surfaces with a coating against wear, preferably as fixed lubricant surfaces or as a sintered layer.

A punch and die set and selection apparatus adapted for sheet material forming, to work cooperatively with an automated punch press to select one of a set of punches and dies to operate within said apparatus to be engaged with the punch-press load-applying ram and tool holders, and to compel or allow the non-selected dies to be moved away from the sheet material so as not to impinge on or damage the sheet material being formed.

Disclosed herein is a press molding method for forming a press-molded product having a flange including a special-shaped portion. The method includes: a trimming step of determining an outer peripheral edge of the flange and forming the special-shaped portion; and a finishing step of molding the flange into a final product shape position of the press-molded product after the trimming step. The flange includes a first flange portion including at least a portion of an outer peripheral edge of the special-shaped portion. In the trimming step, the first flange portion is press-molded into a preform position deeper in a thickness direction of the first flange portion than a final product shape position of the first flange portion, and in the finishing step, return molding of lifting the first flange portion in the thickness direction of the first flange portion to the final product shape position of the first flange portion is performed.

A machine for machining, such as cutting and/or forming, planar workpieces has an upper tool and a lower tool that are movable toward each other to machine a workpiece arranged therebetween. The upper tool includes at least one cutting tool having at least one cutting edge and a clamping shaft. The lower tool includes a main body having a support surface for the workpiece. The support surface has an opening associated with an inner counter cutting edge. The lower tool has a positioning axis and at least one outer counter cutting edge provided outside of the opening and associated with the support surface. The outer counter cutting edge is aligned with an outer face of the support surface. A distance of the outer counter cutting edge from the position axis and a distance of the inner counter cutting edge from the position axis deviate from each other.

Methods and apparatus to shape a workpiece are disclosed herein. An exemplary apparatus includes a first die and a second die movable relative to the first die. The apparatus also includes a punch assembly movable relative to the second die and the first die during a stroke cycle of the second die to a position adjacent a workpiece disposed between the second die and the first die. The punch assembly includes a punch to be actuated to pierce the workpiece when the punch assembly is in the position adjacent the workpiece.