Abstract: The invention relates to a bending machine (1) for bending a sheet metal workpiece (2), comprising at least three bending punches (4,5,6) which respectively have working edges (7,8,9) which are aligned parallel with one another. Relative to an initial plane (3) in which a bend section (10) to be made in the sheet metal workpiece (2) lies, the first and the second bending punch (4,5) are positioned on one side and the third bending punch (6) is positioned on the opposite side of the initial plane (3). The working edge (9) of the third bending punch (6) is displaceable between the working edges (7,8) of the first and second bending punches (4,5). The third bending punch (6) has at least one rotary and one translatory degree of freedom in a reference plane oriented at a right, angle to a working edge (7,8,9). The second bending punch (5) has three degrees of freedom in the reference plane (19).

Abstract: A tool for cold-working a metal substrate of a longitudinal bore having a diameter less than about eight inches includes a deflector tip configured to direct accelerated shot having diameters on average not larger than 100 mils (2.54 mm) toward a surface of the metal substrate at an angle between about 70 degrees and about 85 degrees relative to the surface, thereby providing increased compressive stresses in the metal substrate.

Abstract: A roll forming device for forming a variable thickness plate is disclosed.

Abstract: A flat rolling stock of metal passes through roll stands of a finishing train, and a cooling section, in succession. Initial values which characterize the energy content of rolling stock points are determined, at the latest, when said rolling stock points enters into the finishing train. The rolling stock is tracked as it passes through the finishing train and cooling section. The initial values, trackings, and energy content influences are used to determine expected values for the energy content of the rolling stock. The energy content expected for a predetermined location, which lies between the first roll stand and the first cooling device of the cooling section is ascertained and used to determine a target energy content progression, from the predetermined location until the rolling stock passes out of the cooling section. The cooling devices are controlled based on the target energy content progression.

Abstract: A flanged duct blank has a male part defined by lead notches formed at each side of a leading end and has a female part defined by trail notches formed at each side of a trailing end. The male part includes a lock tab. The female part includes a leg part and a Z-bend. The Z-bend includes a leg part and a gap. The duct blank is repeatedly clamped and bent by a pivoting wiper to form a duct portion. The pivoting wiper includes a clench tool that has a retractable rib and a retractable roller. With the lock tab inserted into the Z-bend and the retractable rib engaged with the Z-bend, the retractable roller clenches the leg part over the lock tab to lock the male and female parts together in a duct seam.

Abstract: The invention concerns an apparatus, a method and a use of the apparatus for automatically twisting metal wires. The invention concerns in particular such an apparatus for connecting adjacent, preferably mutually crossing structural elements, comprising a wire feed means for feeding wire, preferably endless wire, into the apparatus, an arcuate wire guide which has a selectively openable and closable opening and which is adapted to guide the fed wire in the closed position along the arcuate wire guide from a first side of the arcuate wire guide to a second side of the arcuate wire guide, that is in opposite relationship with respect to the opening, a pulling slider adapted to engage the fed wire on the first side of the arcuate wire guide and to pull it towards the second side of the arcuate wire guide, and a twisting unit adapted to engage the fed wire on both sides of the arcuate wire guide and to twist it by means of a rotational movement.

Abstract: A thread forming tap includes a screw thread formed into a male thread shape with margin portions disposed to project in radial direction and relief portions having a diameter smaller than the margin portions, the margin portions and relief portions alternatively arranged and, thread forming tap causes the margin portions of the screw thread to cut into a surface layer portion of a prepared hole formed in a work to plastically deform the surface layer portion to form a female thread, margin portions are formed into a ridge line shape with a width dimension of zero at least at a thread bottom of the screw thread, and margin portions are formed into a ridge line shape with a width dimension of zero in a range from a thread bottom of the screw thread to a position between the thread bottom and an effective diameter position of the screw thread.

Abstract: A head of an electrohydraulic discharge device of the invention comprises: —an end of a power cable having a first conductor and a second conductor, —an explosive wire comprising multiple segments assembled in a series, and —means for connecting each of the ends of the explosive wire to the end of the power cable.

Abstract: A multi-warm forming device and the forming method are disclosed.

Abstract: A prototype part drawing/flanging tool is provided that are arranged in a draw die set-up and a flange die set-up. The draw die set-up includes a binder ring, a pad; a flange forming ring, and a punch. The flange die set-up includes the flanging ring, the pad, and the punch. The draw die set draws a blank and the flange die set forms a flange on the blank in two separate operations using the same die parts in the two operations. A method is disclosed for making a formed and flanged part that begins by drawing a blank held by a pad, a flanging ring and a binder ring against a punch in a press to form a drawn blank. The drawn blank is then laser trimmed to form a trimmed/drawn blank. The trimmed/drawn blank is then clamped between the pad and the punch while the flange forming ring forms a flange into a flange forming groove.

Abstract: In a center hole forming method, an object to be processed is inserted in a die hole and a shaft is drawn from the object. A load toward a first axial end surface of the object is applied to a second axial end surface of the object without taking out the object from the die hole. A diameter of the first axial end surface is smaller than a diameter of the second axial end surface. A center hole is formed in the first axial end surface by pressing a counter punch against the first axial end surface in a state that the load is applied to the second axial end surface.

Abstract: To manufacture a metal can having a tear-open lid and having a storage space for an object above the tear-open lid, the following procedure is used: first, a top edge of the can which has a smaller diameter than the inside diameter of the can body is formed, wherein a transition region (6) is formed. After the tear-open lid has been attached, this transition region is deep drawn so that the tear-open lid (2) is displaced towards the bottom (5) of the can. This produces the storage space. This procedure allows previously formed tear-open lids to be used, which safely guarantees the imperviousness of the seal of the tear-open lid.

Abstract: Flanging press for folding over a flange of a component, preferably of a vehicle part, the press being arranged in a stationary manner and including at least the following: (a) a basic structure with a flanging bed, against which the component can be pressed in a pressing direction in order for the flange to be folded over, (b) a flanging die unit with a flanging die for folding over the flange, (c) and a pressing drive for generating a pressing force which acts on the component in order for the flange to be folded over, (d) wherein the flanging die and the flanging bed can be moved relative to one another in the pressing direction by the pressing drive in order for the pressing force to be exerted, characterized in that (e) the pressing drive includes a bellows which can be subjected to the action of pressurized fluid, preferably compressed gas, and, under the action of pressure, acts on the flanging die unit or the flanging bed in the pressing direction and thus generates at least some of the pressing force

Abstract: The invention relates to an apparatus for sampling rolled metal strips wound up into a coil (1), in particular in the thickness range of >12 mm, comprising a coil rotator and an apparatus (6) for separating the sample from the metal strip (4), characterized in that the coil rotator has at least two rotatable supports (2, 3), preferably trough rollers arranged in a lower quadrant of the coil (1) lying on the coil rotator, and also an outer guide (5) for the metal strip, the outer guide (5) extending angularly around the coil (1) by more than 180° in a region downstream of the downstream support (3) in an unwinding direction of the metal strip and is provided with means (7) for reducing friction of the metal strip on an inner surface of the outer guide (5).

Abstract: Disclosed is a rolling mill, in particular a rolling mill having more than one mill stand, comprising at least two rolls (30) which are mounted in a roll bearing in a mill stand to absorb rolling forces, further comprising means (40) for moving at least one roll relative to the mill stand as well as means (50) for determining the roll pass, the determining means having a pass reference (54) and a spatial reference (56) as well as means (58) for measuring the relative position between the pass reference and the spatial reference. In order to create a rolling mill that provides as accurate information as possible about the roll pass, the pass reference and/or the spatial reference is/are arranged peripherally in relation to the power flow occurring between the roll and the mill stand.

Abstract: A method of bending a sheet of metal using a press brake includes pivoting die holders during the bending operation so bends can be made in opposite directions without having to turn over or flip over the sheet of metal. In the method a first die holder is driven downward toward a second die to thereby create a bend in the metal sheet when the first and second dies come together. The first die holder and the first die are then retracted away from a second die holder and the second die. The die holders are moved, preferably rotated, to a second position in which the first die holder is located over the second die holder. Then the second die holder is driven downward toward the first die to thereby create a second bend in the metal sheet when the first and second dies come together.

Abstract: A vacuum port assembly is provided for a press system including a die assembly and a transfer assembly. The transfer assembly includes a conveyor belt, a vacuum manifold coupled to the die assembly, and an airflow generator. The conveyor belt includes a plurality of holes for receiving and moving shells in a plane with respect to the die assembly. The vacuum port assembly includes at least one port member including inlet and outlet ends. The inlet end has amounting portion for removably coupling the port member to the vacuum manifold. The outlet end is in fluid communication with the airflow generator, thereby establishing fluid communication between the airflow generator and the vacuum manifold. The inlet end extends outwardly from the vacuum manifold generally perpendicular with respect to the plane of the conveyor belt.

Abstract: A multi-forming device is disclosed.

Abstract: A die apparatus includes a first die and a second die which are respectively used in adjacent working stations that sequentially blank or stamp out a progressively fed thin metal sheet. The first and second dies are held in a state where outer peripheral surfaces of the first and second dies directly contact each other.

Abstract: A ball screw is provided in which an outer circumferential formation is formed at a portion facing a ball circulating passage out of outer circumferential surface of a nut. The ball screw includes: a screw shaft having on its outer circumferential surface a screw groove; a nut having on its inner circumferential surface a screw groove facing the screw groove; a plurality of balls rollably loaded in a spiral ball rolling passage formed by both screw grooves; and a ball circulating passage to return the balls from a start point to an end point of the ball rolling passage for recirculation. The ball circulating passage is a concaved groove formed by concaving a groove on a part of the cylindrical inner circumferential surface of the nut by plastic working. Then, a flange is integrally provided at a portion facing the ball circulating passage and the screw groove.