Abstract: The present disclosure discloses an apparatus and a method for forming a large-scale thin-walled ring shell by hot-press bending with internal gas pressure. The method comprises: welding a first head and a second head to the pipe; arranging a first electrode and a second electrode at the two ends of the pipe; charging compressed gas to the heated sealed pipe assembly; placing the sealed pipe assembly between the convex part of the first die and the concave part of the second die, controlling the temperatures of the first and second dies to perform press bending; increasing the gas pressure in the bent sealed pipe assembly, to attach the bent sealed pipe assembly to the die cavity profile; discharging the compressed gas, cutting the first head, second head and extra material to obtain a formed ring shell segment; welding formed ring shell segments to obtain a large-scale thin-walled ring shell.

Abstract: Devices and methods for bending or cutting implants are disclosed herein. In some embodiments, an instrument can convert a rotational input force (e.g., supplied by a powered driver tool) into movement of a first rod holder with respect to a second rod holder. Such movement can form a bend in a rod or other implant held by the first and second rod holders. Various mechanisms for converting this movement are disclosed, such as a worm drive mechanism and a conical gear mechanism, as are various types of rod holders, including orbiting rollers, lid-type rod holders, fixed and pivoting half-pipe rod holders, and full-pipe rod holders. In some embodiments, the instrument can also be used for cutting, for example by rotating a cutting wheel with respect to a cutting plate to cut a rod or other implant inserted through openings formed in the cutting wheel and the cutting plate.

Abstract: A forming tool for forming a metal sheet, having an upper tool part and a movable sheet holder that is supported against the lower tool part, and having a locking device, which is provided between the sheet holder and a hold-down and has at least one spacer element that is supported so that it is able to move from a rest position into a working position as a function of a relative movement, which occurs during the closing of the forming tool. The forming tool also has a wedge drive with a slider and a driver, the slider that is equipped with the spacer element is supported so that it is able to move in contact with the driver as a function of the relative movement that occurs between the sheet holder and the upper tool part during the closing of the forming tool, in order to move the spacer element into its working position.

Abstract: A method for manufacturing a complex-curvature tubular product starting from a metal tube extending along a rectilinear longitudinal axis is provided.

Abstract: A bending device is provided in a tape feeder. In the bending device, lead wires of a bending target lead component that has reached a bending position of lead component tape fed by a feeding device are bent. In addition, as the lead wires are cut by a cutting device, bent lead components are separated from a carrier tape, and the bent lead components are supplied one by one. In this manner, in the tape feeder, as the lead wires of the lead component tape are bent, the bent lead components are supplied.

Abstract: The invention discloses aluminum alloy wheel shape-correcting equipment which comprises rack, an output end of positioning air cylinder is arranged at the bottom of the rack corresponding to the center of the upper rotating disc and is vertically and upwards connected with positioning cone.

Abstract: A method for producing a trim strip comprising an extended portion (20) and a bent portion (19) which has a sharp edge (21) comprising the following steps: i) providing a blank with a material thickness and a shaped end cap contour (27); ii) bending the cap contour (27); iii) forming a sharp edge (21) along the bent portion (19), wherein a punch (31) for the edge-forming process, comprising a side surface (33, 37) which is stepped so as to correspond substantially to the material thickness and which faces the die (30) and counter die (32), is guided along the side surfaces (52, 35) of the counter die (32) and die (30) such that the step (34) of the punch (31) engages with the marginal edge (56) and displaces the material of the folded portion (19) towards the edge portion (21), thereby forming a sharp edge.

Abstract: Provided is a device for manufacturing a bent pipe, the device being capable of reducing buckling. The device including: an inner core metal arranged inside a first pipe; and a bending mold to bend the first pipe. The inner core metal includes: an inner core metal body; a first inner movable portion coupled to the inner core metal body and swingable around a first rocking shaft orthogonal to a central axis of the inner core metal body; and a second inner movable portion coupled to the first inner movable portion and swingable around a second rocking shaft parallel to the first rocking shaft. The first inner movable portion has an enlarging diameter portion enlarged in diameter toward the second inner movable portion. The bending mold causes an inner surface of the first pipe to press the first inner movable portion and the second inner movable portion.

Abstract: A paintless dent removal tool for removing a dent from a vehicle is disclosed. In some embodiments, the paintless dent removal tool includes a stabilizer assembly having a first leg, a second leg and a body therebetween. The body having an opening therethrough, the stabilizer assembly for stabilizing the paintless dent removal tool on a surface of a vehicle. The paintless dent removal tool including a pull bar having a first end and a second end. The first end of the pull bar positioned partially through the opening of the body of the stabilizer assembly and adjustably connected thereto. The paintless dent removal tool including a handle assembly having a first end, a middle portion and a second end. The middle portion of the handle assembly is adjustably connected to the second end of the pull bar. The paintless dent removal tool including a tip member detachably connected to the second end of the handle assembly.

Abstract: A stripping device (7) for a roll stand (1) includes a stripper carrier (15) and a stripper (17) arranged on the stripper carrier (15). The stripper (17) has a main body (19) produced from a fiber-plastic composite. The main body has a main body bottom side (23), which contacts the stripper carrier (15). A felt layer (21) is arranged on a main body top side (25) of the main body (19) which is opposite the main body bottom side (23).

Abstract: Disclosed is a method for changing the rolls on a rolling mill for rolling a metal strip, carried out using a Quarto rolling mill, including lower and upper working and support rolls. The installation includes a system for extracting the working rolls and the support rolls, including: an actuator pushing the rolls out of the roll stand extraction; a coupling head, secured to the actuator, situated in a position of opening of the roll stand, including: a first coupler driving the chock or the end of the lower working roll, on the rolling-mill drive side; a second coupler driving the chock of the lower support roll, on the rolling-mill drive side. The first and second coupler allow successive extractions of the working rolls and then of the support rolls from the roll stand using the actuator of the extraction system. Also disclosed is a related rolling mill installation.

Abstract: A method for forming large titanium parts includes forming bends into a titanium plate for form a bent part. The bent part is then roll-formed to form contours into the bent part. The surfaces of the contoured part are rough-machined, and the part is then secured to a bladed form fixture. The bladed form fixture comprises a plurality of header boards that secure the part to the fixture. The fixture part is placed in a thermal vacuum furnace and a stress-relieving operation is performed. The part is removed from the fixture and final machining takes place.

Abstract: A method of forming a vehicle panel includes deforming a sheet metal workpiece between stamping tools to form a first and second edges that converge at a corner of the workpiece's main surface. The first edge is defined by a junction of the main surface and a first flange. The second edge is defined the main surface and a second flange. Forming the first and second edges includes deforming the workpiece so that the second flange has a first region bent to a first angle relative to the main surface and an unwinding region bent to an angle that unwinds from the first region as the second flange approaches the corner. The method includes deforming the workpiece between a second set of stamping tools that deform the first flange and the unwinding region of the second flange until the first and second flanges are bent greater than 90°.

Abstract: When an opposite direction shift for obtaining a required equivalent roll crown and a same direction shift for wear dispersion are used in combination, a difference occurs in the roll gap at both edge portions in the width direction of a rolling target material. Therefore, the difference between a work-side screw down position and a drive-side screw down position is changed so that the roll gap difference between both the edge portions in the width direction of the rolling target material is made close to zero. As a result, the distance between the work roll shafts on a work side and a drive side is changed, so that the roll gap difference at both ends in the width direction of the rolling target material approaches zero. Therefore, the wear of the work rolls can be dispersed while maintaining the equivalent roll crown.

Abstract: A rotary press die has a rotating die forming a negative angle part on a plate-like work and a fixed die arranged outside the rotating die and forming a molding part except for the negative angle part on the work. The rotating die is a press molding die which is formed such that the press molding die rotates about a rotating axis when the work is removed and can be retracted inside the fixed die. A rotating block is configured by a fixed piece arranged on the fixing table and having a concave slide surface having the rotating axis as a center. A moving piece is arranged on the rotating die and having a convex slide surface which can slide on the concave slide surface by using the rotating axis as a center. An opening angle between the concave slide surface and the convex slide surface is 80° to 100°.

Abstract: An apparatus and a method for producing an elongated profiled part, in which a profiled strip is produced from a flat strip by rolling and the profiled strip is embossed in sections, by means of which at least one longitudinal section of the profiled strip is offset relative to at least one other longitudinal section in a direction perpendicular to the longitudinal direction of the profiled strip, and with which method the strip is trimmed in such a way that, after the embossing, the longitudinal sections that are offset relative to each other have different cross-sections. In order to increase the reproducibility of the method, before the profiling, the flat strip is trimmed in such a way that by means of the embossing of the trimmed and profiled strip, the longitudinal sections that are offset relative to each other have different cross-sections.

Abstract: A tie placement apparatus having a body with a handgrip. The tie placement apparatus has a wire inlet adapted to receive a tie wire, a tie placement head, and an electric motor cooperative with the tie placement head so as to actuate the tie placement head. A first reel-holder is adapted to receive a tie wire reserve therein. The body has an attachment socket that removably receives the first reel holder. The attachment socket and the first reel holder are affixed together by an elastic latch.

Abstract: A sheet metal hemming device is provided. The sheet metal hemming device includes a frame and a rolling wheel, a bearing wheel, a first rotating shaft, a second rotating shaft, a sliding block, an arc-shaped guide rail and a driver which are disposed on the frame. The rolling wheel is disposed on the first rotating shaft, the bearing wheel is disposed on the second rotating shaft, and an angle is formed between the rolling wheel and the bearing wheel. The sliding block is slidable relative to the arc-shaped guide rail and is connected to the rolling wheel via the first rotating shaft. The driver is connected to the sliding block for driving the sliding block to slide along the arc-shaped guide rail to adjust the angle between the rolling wheel and the bearing wheel.

Abstract: A single bending device for continuous three-dimensional bending has a rotating and feeding holder for holding a workpiece, a bending roller assembly having multiple rollers being different in radius, a pressing roller head for bending the workpiece. The bending roller assembly can be moved to allow one predetermined roller to abut against the workpiece. Then the workpiece can be bent by the pressing roller head pushing the workpiece along the predetermined roller. Thus, as long as a different one of the rollers corresponds in position to the workpiece, a bending portion having a different curvature can be formed on the workpiece. Moreover, by controlling the moving length of the pressing roller head along the workpiece, the arc length of each bending portion of the workpiece can be controlled accordingly. It is not necessary to replace the jigs and the dies repeatedly.

Abstract: A paintless dent removal tool, method and system for automatically removing a dent from a vehicle. The paintless dent removal tool includes a stabilizer assembly, a sleeve, a threaded chamber and a threaded rod positioned within the threaded chamber of the sleeve. Wherein, upon a rotational force being applied to the top end of the threaded rod, the threaded rod is configured to rotate within the threaded chamber raising the sleeve upwards towards the top of the stabilizer assembly, such that when a glue tab is connected to the tab connector the paintless dent removal tool automatically pulls the glue tab upward to substantially pull out the dent in the surface of the vehicle.