Abstract: A lead forming apparatus has a function of bending leads of a semiconductor device having leads into a gull wing shape. The lead forming apparatus includes: a lead bending die, as a lower die, allowing thereon placement of the semiconductor device and accepting the leads in the bending leads; a lead bending punch, as an upper die, descending towards the lead bending die so as to move the leads of the semiconductor device towards the lead bending die, to thereby bend the leads into a gull wing shape; and a first stopper specifying the bottom dead center of the lead bending punch, so as to ensure a distance not smaller than thickness of the leads between the bottom surface of the lead bending punch and the top surface of a portion, allowing thereon placement of the leads, of the lead bending die.

Abstract: Radial roller head with rollers distributively arranged in a holder under the same angular separations and in axial separations around a roller axis, the roller surfaces of which have an increasing progression in a spiral manner around the circumference in the counter clockwise direction. A gear wheel drive couples the rollers together. A locking device automatically locks into place after each full roller rotation and is released before each roller procedure via a moveable locking element. A drive device turns the rollers after release of the locking device up to the contact of the roller surfaces with a tool, in order to then be further turned through friction therewith. An electromagnet connected with the locking element, is arranged in the radial roller head with an electrical energy source and a switch connecting the energy source with the electromagnets when the switch is actuated via the work piece or another actuating device.

Abstract: A method and device for lubricating tool and workpiece at cutting and forming, especially fine blanking of a workpiece with 5 mm or more thickness and with complex part geometry from a flat strip lubricates a tool and workpiece at cutting and forming, so that fine blanking of thicker parts is reproducible, with high quality. Extended the edge life of the tools is achieved by lubricating the active surfaces without the provided lubricating film breaking off. One quantity of cutting oil is accumulated in a micro-surface structure of a functional surface of shearing punch and cutting die and evenly distributed on the functional surfaces as quasi-stationary cutting oil film by cooperation of functional surfaces moving past each other when the tool is closed, and another quantity of accumulated cutting oil, via the respective effective gaps, is provided to the active surfaces of shearing punch and workpiece in the forming zone.

Abstract: A wire harness bundle twister and comber employs a comber plate having a plurality of apertures receiving a plurality of wire bundles in sliding engagement with handles extending from the comber plate for rotation of the plate to twist the wire bundles into a consolidated wire harness. To allow removal of the wire bundles from the bundle twister and comber without withdrawing the wire bundles to an end the comber plate incorporates an upper outer plate element and a lower outer plate element concentric with and separable from a first inner or center element to separate the apertures into segments for removal of the wire bundles.

Abstract: After a rod-like titanium material 20 is accommodated in a generally linear-shaped groove 13 of a first mold 7, a first guide portion 15 of a second mold 8 is fitted to the groove 13. Thereafter, the first mold 7 is moved along an arrow A direction relative to the second mold 8 fixed to an anchor block, by which the titanium material 20 substantially immovably retained in the groove 13 of the first mold 7 is bent and pushed into a through hole 24 of the second mold 8 by the first guide portion 15, thus being plastically deformed.

Abstract: An electromechanical knocking activated device and method for working and cold-hardening the surface of tools, machine parts, etc. is disclosed. The electromechanical apparatus may include: an impact head which is secured to a support, wherein at least one part of the support is composed of a ferromagnetic material; and at least one coil which is also secured to the support. A magnetic field holds the impact head in a defined position of rest. The coil is may be positioned in the same magnetic field or a second magnetic field, through which an alternating or pulsed current may flow. As a result, the impact head is made to oscillate with a defined impact frequency, impact altitude and zero crossing. The device may be used in combination with a computer aided manufacturing system.

Abstract: Example embodiments relate to a continuous metal extruder that includes a rotatable member having an extrusion screw portion for transporting metal to be extruded in an axial direction of the rotatable member, a fixed part, a spring element for biasing the rotatable member and the fixed part in relation to each other, and a thrust bearing arranged between the rotatable member and the fixed part.

Abstract: A reducing mill includes a plurality of stands disposed along a rolling direction line. The stands each include n rolls (n?3) disposed around the rolling direction line, the n rolls are shifted by 180°/n around the rolling direction line from n rolls included in a preceding stand. The n rolls included in each of the stands excluding the last stand each have a groove having an arch shape. The bottom of the groove has a circular arc shape around the rolling direction line having a first radius in cross section. The distance between the surface of a roll flange portion between the bottom and the edge of the groove and the rolling direction line is longer than the first radius. The distance between the edge of the groove and the rolling direction line is longer than the first radius in the groove of a roll included in the preceding stand.

Abstract: In a method of making a seamless hot-finished steel pipe a billet heated to a shaping temperature is pierced by a first shaping to a thick-walled hollow ingot which subsequently undergoes a radial forging process using an internal tool inserted in the hollow ingot and at least two forging jaws of a forging machine. The forging jaws act on the outer surface area of the hollow ingot, wherein the hollow ingot is turned and axially advanced in a clocked manner in the idle stroke phase of the forging jaws.

Abstract: A die cushion pad 13 is divided into four small pads 15 and a large pad 16. With this arrangement, a load applied to an action point of each of the small pads 15 can be equalized by the large pad 16, and an overturning moment arising between the action point and a reaction force point that equates the center of the small pad 15 can be canceled, thereby preventing flexure of the small pad 15. Accordingly, since flexure of the cushion pin and the like can be prevented, there is no risk that the cushion pin is frictioned against the penetrating hole of a bolster, and the lifting operation can be smoothly performed, whereby a higher-accuracy pressing forming operation can be realized.

Abstract: A circular-shaping device for a rotating part, especially an exhaust housing of a turbo engine is disclosed. The device includes a lower unit with two shaping rollers mounted movably along an axis X1 and one shaping roller mounted movably along an axis Y1; an upper unit with two shaping rollers mounted movably along an axis X2 and one shaping roller mounted movably along an axis Y2; a turntable disposed between the lower unit and the upper unit; and a blocking device for the rotating part on the turntable.

Abstract: The invention generally relates to a tab used to open food can ends and beer/beverage can ends. The tab has a nose portion located at a front end of the tab and a lift portion located at a back end of the tab. The tab also has a rivet receiving portion located proximate to the nose portion with a rivet hole. The rivet receiving portion is coupled to the nose portion. The rivet hole has a non-round perimeter with a first diameter portion and a second diameter portion. The first diameter portion has a plurality of first arcuate segments and the second diameter portion has a plurality of notches. The second diameter portion is greater in length than the first diameter portion. Tooling for the manufacture of the tab is also provided. A method for manufacturing the tab is additionally provided as well.

Abstract: A method for producing workpieces wherein a generally cylindrical preform (8) is formed by at least one pressure roller (7) into a finished workpiece (8.2). The method includes slidingly placing a portion of the preform (8) on at least a first mandrel (3, 4?) which is slidably mounted in parallel with the longitudinal axis (A) of the preform (8), aligning the mandrel (3, 4?) such that the surface (3b, 4b, 4b?) thereof disposed within the preform (8) substantially defines a negative profile of an inner surface to be formed in said preform (8), and performing a relative movement between the preform (8) and the pressure roller (7) in a direction parallel to the longitudinal axis (A) while pressing the pressure roller (7) against the preform (8) such that material of the preform (8) is displaced by the pressure roller (7) in such a way that the mandrel (3, 4?) is moved by the displaced material.

Abstract: In a method of cutting high-tensile workpieces, in particular sheet metals of martensite steel, the workpiece is subjected to a bending stress prior and during a shearing process. The bending stress causes a substantial component of a tensile force transverse to a desired cutting contour. Tensile stresses are superimposed to the shearing stresses, which favor the beginning of the workpiece separation. The bending stress is preferably selected so that the resulting tensile stress exists at a side facing the cutting tool.

Abstract: A profiling machine for forming U, C and Z profiles includes a final profiling unit having a first fixed shoulder disposed inclined to the vertical plane and supporting a plurality of profiling stations each consisting of a pair of profiling rollers, and a second shoulder supporting a plurality of profiling stations each consisting of two pairs of profiling rollers, said second shoulder being hinged on a longitudinal axis to be able to pass from a position for forming Z profiles to a position for forming C and U profiles.

Abstract: A device and a method for fine blanking and forming a workpiece out of a flat strip includes. a cutting plate formed as a disc-shaped transfer part, with several cutting openings adapted to the effective elements which take up and clamp a cut out a blank to transport the blank from one machining stage to the next.

Abstract: A tool for correcting the twist angle of a turbine blade includes an adaptor configured to engage a tip of the blade, a socket drive configured to engage the adaptor, a first handle connected to a first side of the socket drive, a second handle connected to a second side of the socket drive, and a torque gauge configured to measure a load applied to the blade.

Abstract: The tool reduces or stops the flow of liquid or gas through a conduit and includes a crimping section, comprised of a first and second crimping member pivotally engaged with each other, and a handle section, comprised of a first and second handle member pivotally connected to each other. Each crimping member has a blunt section extending partially along an edge thereof. The first and second handle members are connected to the first and second crimping members. The conduit is crimped by applying a force to the handle members causing the handle members and the crimping members to pivot in a direction opposite each other so that the blunt sections of crimping members crimp a conduit placed therebetween thereby reducing or stopping the flow of the liquid or gas flowing through the conduit. The tool may also hold objects and be locked via separate locking mechanisms.

Abstract: A wire reel containing portion 3 of a reinforcing bar binding machine 1 is provided with a rotation detecting lever 8 and a photosensor 7. When a wire reel is rotated in starting to bind a wire, rotation thereof is detected by the rotation detecting lever switched ON/OFF by a projected portion formed at a side face of the wire reel, the photosensor detects a reflection mark of the wire reel to determine a kind of the wire from a number of the marks, and a twist torque or the like is controlled. Wire information is detected not in an initializing operation (in setting wire) of rotating the wire reel at low speed but in a binding operation of rotating at high speed and therefore, an amount of swinging the rotation detecting lever is large and wire information can firmly be detected.

Abstract: A method and apparatus for forming a closure in which the closure includes a peelable panel with integral tab folded over the panel. The apparatus includes upper and lower reform tools, the upper reform tool having a tab relief feature and local scallops at each end of the tab relief. When reform tools move together for reforming, the tab relief feature is positioned over the tab fold and the scallops at the ends of the fold. As a result crushing and fracture of the tab during reforming is avoided.