Abstract: Adjustment of the tools (24) on the tool holder (10) in an Aerial Cam of a metal stamping press may be readily effected by opening the press to remove the upper die (14) from the stamping area and then removing the tool holder (10) on the driver (18) for controlled reciprocation simulating normal operation of the press. The tools (24) may then be adjusted in relation to the workpiece without the interference of the press dies (14 and 20).

Abstract: A machine is disclosed for producing a deep drawn part and a shallow drawn part from sheet metal blanks in a single action draw press. A floating draw punch and a fixed draw punch are provided. The first draw die forms a part that is drawn over the fixed draw punch while the second blank does not begin forming the second part until the floating draw punch bottoms out on the bed of the press. The floating draw punch moves with the binder ring until the additional draw depth required to form the deep drawn part is essentially equal to the draw depth of a shallow drawn part. A process for producing multiple unattached sheet metal parts in a single action draw press is also disclosed wherein a first sheet metal part has a draw depth D1 and a second sheet metal part has a draw depth D2.

Abstract: A method and apparatus for straightening dents and irregularities in wheels including a spindle, a platen mounted on the spindle configured such that the wheel can be mounted on the spindle with the spindle projecting through the central hub hole and at least one actuator device positionable between the spindle and a section of the wheel to be straightened, the actuator exerting a straightening force on the rim of the wheel and a mobile device including the same.

Abstract: A die cushion controller uses position control to position die cushion members for placement of a metal sheet. A pressing process starts and the upper die is lowered. When a position detector detects a position at which the upper die touches the sheet metal, the die cushion controller switches over from position control to pressure control and applies a preset pressure to the sheet metal. When the position detector detects that the upper die has risen to a preset position, the die cushion controller clears the positional deviation accumulated in position control to zero, then moves the die cushion members to preset positions and holds them there.

Abstract: A three version precision degree pipe hand bender using stop members inserted into degree slots cut into a bender head outer periphery to signal pipe bend completion as the pipe being bent touches a stop member.

Abstract: A clamping assembly for use with a bend arm of a tube bending machine. The assembly comprises a force multiplier linkage that applies a controlled and variable force to a workpiece. In one embodiment, the force multiplier linkage comprises a bearing member pivoted by an actuator acting on one end of a force multiplier arm that is attached to the bearing member. A pivot member supporting a drive link is fixedly attached to the bearing member at a location offset from the bearing member's pivot axis. The drive link pivots about the pivot member axis so that in cooperation with additional links it moves a bend arm slider. The drive link also pivots about the bearing member axis. As the bearing member is pivoted about its axis by the force multiplier arm, the drive link also pivots about the bearing member's axis providing the required force for application to the workpiece.

Abstract: The sheet metal blank to be press molded comprises a product section (W1) and a grip section (W2) disposed on the periphery of the product section (W1). The press molding device performs press molding on the product section (W1) while gripping the grip section (W2) with the upper die (11) and the lower die (12). A bead (W3) comprising alternately disposed indented sections (A, C) and protruding sections (B, D) is press molded beforehand on the grip section (W2) by meshing the indented corners (6, 8) and protruding corners (3, 5) formed on the lower die (12) with corresponding indented corners (7, 9) and protruding corners (2, 4) formed on the upper die (11). Consequently a preferable constraining force without reducing the radius of the indented sections (A, C) and protruding sections (B, D), thereby protecting the galvanized surface of the sheet blank from chipping.

Abstract: A device, such as an inner race of a torque converter's overrunning clutch, is formed by powder metallurgy. The race includes oil grooves and chamfers formed in each face by forging. The oil grooves on the first face open onto the chamfer. The chamfer on the second face is interrupted at the oil grooves such that each oil groove opens onto the diametral surface. A forge assembly for forming the race includes a die assembly including a discontinuous lower chamfer tool, an upper punch including groove tools and a continuous chamfer tool, and a lower punch including groove tools and radially extending teeth disposed at the oil grooves and capable of extending into the gaps of the lower chamfer tool. A method for forming the race includes employing the die assembly to forge the oil grooves and chamfers into the preform and remove flash by conventional grinding processes.

Abstract: In the case of a rolling stand for producing rolled strip, which is provided with rolls which are axially displaceable with respect to one another, have a curved contour running over the entire effective barrel length and complement one another exclusively in a specific relative axial position of the rolls in the unloaded state, it is intended for the thickness profile of the roll gap over the active roll barrel length to be varied by axial displacement of the rolls provided with a roll barrel contour in relation to one another in such a way that a strip that is planar and free from undulations is obtained. This takes place by the profile of the barrel contour of the rolls of a pair of rolls being formed by a trigonometric function and the roll gap contour also being formed by a trigonometric function in dependence on the profile of the barrel contour and the position of the rolls within the axial displacement region.

Abstract: A hydraulic circuit for linearly driving a movable roller-holder slider of a pipe bending machine, comprising a hydraulic cylinder (5) whose piston rod is connected to a slider holding a movable roller, the cylinder being fed with pressurized fluid from a reservoir (16) by a pump (15), through a three-position four-way valve (18), a check valve (12, 13) and an interposed throttling valve (19), that is operated to generate an increased pressure in said low pressure chamber of the hydraulic cylinder (5) in order to slow down the slider holding the upper roller in its primary motion when a programmable interval is reached from said predetermined position for each working pass.

Abstract: The positioning of the actuating drive in a fuel injector with a piezoactor (2) that is screwed into the housing (1) of the fuel injector is performed by applying a voltage (U) to the piezoactor (2) that corresponds to a given idle stroke (h), and the surface grinding of the housing (3) and base plate (4) of the piezoactor (2) when voltage is applied. Between the housing (1) of the fuel injector and the housing (3) of the piezoactor (2), there is also provided a compensation collar (9) of a suitable thickness.

Abstract: A rolling device with at least two rolls installed in a common stand, the rolls being mounted on lateral stringers by bearings, which are able to move vertically along the lateral stringers, and with at least one axial adjusting device for one of the rolls. The axial adjusting device is directly assigned to the vertically adjustable bearings and is able to move vertically along with them.

Abstract: A crack test for a tubular structure includes a sensor ring disposed radially outward from a flare pin in a flaring press. The sensor ring is responsive to physical contact from a cracked flared end of a tube processed in the press.

Abstract: An apparatus and method for forming a shell with a central panel and a chuck wall is provided. The apparatus and method employ the use of a biasing member to selectively bias and control movement of the inner pressure sleeve and a die core having an outer diameter equal to or greater than the outer diameter of the punch core. The apparatus and method can also be employed in a single action press or a double action press.

Abstract: A bridle unit assigned to a rolling stand with several rolls arranged in adjustable positions below and above the strip flow, which can be moved by means of a drive from an initial position to the strip and from the strip back into the initial position, wherein the roll situated closest to the roll gap of the rolling stand can be moved by means of an additional drive from an initial position below the strip flow or from an initial position above the strip flow to the strip, such that, when the bridle unit is used for coloring the strip, the circumference of the roll deflects the strip upward or downward from the horizontal pass line and forms a bite angle above or below the pass line.

Abstract: A roller tool for forming circumferential grooves around a pipe is disclosed. The tool is rotatable about an axis of rotation and has a circumferential surface engageable with a pipe. The tool surface includes first and second surface portions positioned in spaced relation and oriented perpendicularly to the axis of rotation. A radial surface portion extends between the first and second surface portions and is oriented substantially parallel to the axis of rotation. An angled surface portion is positioned adjacent to the second surface portion. The angled surface portion is oriented at an angle up to about 70° and slopes away from the second surface portion.

Abstract: A method for manufacturing an article (420) having a peripheral portion (422) may include reverse squeezing an initial peripheral portion (22) of an initial article (20) to form a first intermediate article (12) having a first intermediate peripheral portion (122) that is partly thinned, and squeezing the first intermediate peripheral portion (122) of the first intermediate article (120) to form a second intermediate article (220) having a second intermediate peripheral portion (222) that is thickened throughout.

Abstract: A control device for a die cushion mechanism, for carrying out force control with high accuracy and at a high speed. The control device for controlling the force generated by the die cushion mechanism utilizes a press working cycle which is repeatedly carried out. A correcting part of the control device corrects each deviation in one working cycle based on a time-series of deviation data in the just before press working cycle. By repeating this operation, the deviation between the detected value and the commanded value may be converged toward zero. Therefore, the deviation may become smaller than that of the conventional feedback control, whereby it is possible to respond to a change in the commanded value in a short time.

Abstract: A bending apparatus for rod-shaped and tubular workpieces, includes a rotatable bending mandrel with a bending groove is provided with a wrinkle smoothener, which immediately precedes the bending mandrel, and two sliding jaws. In order to change the bending direction around the bending mandrel, the sliding jaws can be moved to the other side thereof. In doing so, the sliding jaw on the side of the bending mandrel is arranged freely rotatable on a support axis, which extends parallel to the axis of rotation of the bending mandrel and whose position relative to the bending mandrel can be shifted parallel to the feeding direction of the workpiece. The sliding jaw is provided such that the end of its forming groove facing towards the bending mandrel can be placed in contact with the bending groove by shifting the support axis and, thus, its forming groove tangentially joins said groove.

Abstract: A can bottom forming assembly for use in forming the bottom of metal cans, such as steel and aluminum two piece cans. The bottom forming assembly is lightweight and comprises outer and cylinder housing assemblies which house a clamp ring retainer assembly, a transfer piston assembly and a spring member. The clamp ring retainer assembly includes biasing members to float a clamp ring thereby centering the clamp ring and domer die plug with respect to the ram of a bodymaker.