Abstract: Disclosed is a method of manufacturing a core sheet. The core sheet has an annular core back portion and a plurality of tooth portions extending from the core back portion toward a radial center thereof. The method includes a blanking step, a rolling step and a removing step. In the removing step, an insulation coating, which is on a region of a grain-oriented magnetic steel sheet for forming a band-shaped core back portion, on a band-shaped core back portion of a sheet piece or on the core back portion of the core sheet, is at least partially removed.

Abstract: An apparatus for manufacturing a heat sealing-type rotational laminated core, includes an upper mold and a lower mold, and forming and stacking individual laminar members, the individual laminar members being formed by having a strip which is sequentially transferred on the upper portion of the lower mold undergone a piercing process and a blanking process by punches mounted on the upper mold.

Abstract: An automated bender and its method of operation according to some embodiments of the disclosure is provided. The automated bender includes a carousel which has all of the necessary components for bending a variety of conduit sizes provided thereon. The carousel can be rotated to a desired bending position to bend a particular type of conduit. A straight workpiece is fed into the automated bender and a bent workpiece, which may have multiple bends therein, is output from the automated bender. This bending process is performed without manual intervention. Software for achieving same is provided.

Abstract: The method for forming a turbofan mixer comprises providing a single monolithic and generally flat annular sheet metal blank, providing a die surface substantially corresponding in shape to a turbofan mixer shape, positioning the blank with reference to the die surface, and forcing the blank against the die surface to transform the blank into a monolithic turbofan mixer.

Abstract: A machine tool apparatus is provided employing a plurality of tool heads which may be sequentially or simultaneously automatically controlled to perform preprogrammed operations on either the same or different workpieces. In one form, a plurality of tool heads are supported on the same frame, guideway or track and may be separate prepositioned or driven under remote or automatic control to perform preprogrammed operations wither in sequence or simultaneously on the same workpiece or simultaneously on separate workpieces spaced apart on a common conveyor such as a flight conveyor while the conveyor is either in motion or stationary. In another form, the conveyor is automatically stopped with units of work thereon, each disposed so as to be predeterminately located with respect to a respective machine tool which has been prepositioned adjacent the work-holding conveyor.

Abstract: A method for producing a blank for a gear rack for rack-and-pinion steering of motor vehicles includes the following steps: In a first step, a starting material having an essentially circular cross-section is placed into a stamping apparatus containing at least three form tools movable relatively to one another. In a second step, at least one force in at least one direction is exerted upon at least one of the form tools, the form tools moving relative to one another by this force, so that the starting material is reformed into a blank for the gear rack. At least in the axial region of the tooth system of the gear rack to be formed, the blank is provided with a shape differing from a circular cylinder. Using this method, part of the material of the starting material is displaced on one side from the middle into the region of the tooth system to be formed, without having much strain-hardening occur in this region. This makes subsequent production processes easier.

Abstract: A press-forming die set including a first die and a second die which are linearly movable in a press-forming direction for mutual engagement to form a negative-angle portion on a workpiece placed on the second die, the press-forming die further including a rotary cam having a first negative-angle forming portion, and a forming cam having a second negative-angle forming portion. The first negative-angle forming portion is disposed such that the rotary cam is rotatable about an axis of rotation inclined with respect to a bottom surface of the workpiece. The rotary cam is engageable with the second die and is rotated about the axis of rotation in one of opposite directions when the first and second dies are moved toward each other, and is rotated in the other direction when the first and second dies are moved away from each other.

Abstract: A crimping apparatus for crimping a workpiece such as a terminal or eyelet around a core such as a wire or a fiber optic cable. The apparatus includes upper and lower identical plates supported for opposing reciprocal motion on respective upper and lower portions of a press. Each plate includes two crimp segments. Each crimp segment has an impingement surface. All four of the crimp segments are supported for mutually convergent motion relative to one another. The vertical motion of the two plates closing together drives both the vertical and the lateral components of the convergent crimp segment motion. The impingement surfaces of the respective crimp segments form a generally annular composite crimping surface for cooperatively crimping a work piece into an arcuate configuration around a core.

Abstract: A pressing instrument for pressing bushings, cable lugs, or similar items upon a work piece reveals two tools that can be brought together with the help of a drive mechanism, forming a pressing chamber, with each tool revealing two opposite pressing cheeks, whose pressing surfaces are shaped so that a polygonal shape will result during pressing. In order that work pieces of differing diameter can be processed with the pressing tool, that production costs can be kept comparatively low, and that good operational reliability can be achieved, opposite pressing cheeks (10, 11; 36, 37, 54, 55) of at least one tool (4, 34, 35) can be swung on them so that the other tool (5, 34, 35), as the tools are brought together (4, 5, 34, 35), will run against the swingable pressing cheeks (10, 11, 36, 37, 54, 55) and will swing them out of a starting position into a pressing position forming the pressing chamber.

Abstract: A method and apparatus is described for forming a T-shaped slot a sheet of material. The sheet of material is clamped to a top surface of an arbor. The arbor has a uniform T-shaped cross section having two undersides of the T-shape. The sheet of material is first formed into an inverted U-shape and then the sheet of material is bent to conform to the undersides of the arbor forming the T-shaped slot. The arbor is withdrawn from an open end of the formed T-shaped slot.

Abstract: A compression tool includes a housing having adjacently disposed first and second oppositely disposed portions defining therebetween a clearance. First and second pivot levers are provided, and each of the levers is pivotally secured to one of the portions and extends therefrom beyond the housing. At least three compression jaws are operably associated with the housing and disposed about the clearance. One of the jaws is secured to the housing and the other two of the jaws are each connected to one of the levers and are pivotal therewith. The one jaw is separate from the first and second levers. Each of the jaws has an arcuate compression surface. A movement assembly is operably associated with each of the levers and the associated jaw for causing cooperating movement thereof. A drive assembly is operably associated with each of the levers and is disposed exteriorly of the housing for causing pivoting thereof between a first open position and a second closed position.

Abstract: Apparatus for forming curved needles from needle blanks of differing sizes and material characteristics having a guide die, driven by a linear actuator, for biasing the needle blank against a forming surface. Bending dies also driven by linear actuators are provided for bending the ends of the needle blank around the top of the forming surface. Adjusting micrometers are provided to adjust the contact point at which the bending dies contact the needle blank. The apparatus can therefore be readily adapted for differing needle stocks. The entire bending process is automated so that uniform needles may be rapidly produced.

Abstract: Simplified hydraulic forging machine having four hammers arranged substantially symmetrically, two of the hammers below and two above a horizontal plane passing through the centre (18) of forging, the hammers (12) cooperating with a hammer support (15), the two upper hammers (12s) being stationary, whereas the two lower hammers (12) are movable.

Abstract: A stamping press tool assembly for delivering parallel forces to a plurality of points angularly spaced around a ring-shaped workpiece, whereby the ring-shaped workpiece is positioned beneath a shouldered hub centered inside the tool assembly, and having a plurality of radial sector rams arrayed between the hub and a bottom plate. The hub receives independent and substantially equal force, providing custom stamping deformation of the workpiece in a uniform manner.

Abstract: A die for forming a Y-form rack portion of a steering rack bar from a blank by forging in which the die has at least three forming elements (44, 47, 48) relatively movable on application of forging pressure to the die to converge on a blank therein, a first of the forming elements (44) having in its cavities the shape of which corresponds to the shapes of the teeth to be formed, second and third forming elements (47, 48) having forming faces to form longitudinal guide faces (4, 5) on the Y-form rack portion on the side thereof opposite the teeth (8). The three forming elements (44, 47, 48) are shaped and arranged to move together to converge on the blank to transform it into the final form in such a manner as to inhibit escape of the material of the blank between the first and second or first and third forming elements up to substantially the last instant of closure of the die.

Abstract: A flaring device for pipe ends including an insert member centrally insertable into a pipe end, the insert member having mounted thereon synchronously operable pressure plungers arranged at the outer circumference thereof and bringable into engagement with the inner circumference of the pipe end to be flared, includes a calibrating ring for determining a maximum outer circumference defined by the pressure plungers mounted on the insert member, the calibrating ring being in operative engagement with the insert member.

Abstract: Tooling connected to the punch pad and die pad bolsters of a progressive die operable as the contacts are being punched out to hug or impact opposite side edges of a contact and thereby form mounting and/or electrical energy transfer surfaces on the side edges. The tooling makes contacts having mounting sections with mounting surfaces which provide for improved mounting characteristics and which also may function as electrical energy transfer surfaces. The tooling makes contacts having retention sections, the retention sections having a pair of outboard arms and an inboard arm and which, when the retention section is inserted in a circuit board aperture, will be engaged by the outboard arms and function to prevent the metal of the outboard arms from being strained beyond the elastic limit and the outboard arms having surfaces formed by the tooling.

Abstract: In a metallic mold apparatus, a rotational power for a skewing operation and a rotational power for an indexing operation are applied through a differential gear device to a rotatably supported die. More specifically, the skew power from such an electric motor as a servomotor operative in synchronism with a press operation and the indexing power from an index means operatively coupled to a press are applied to the differential gear device.

Abstract: An apparatus for straightening a rail spike or the like includes a pair of said facing support arms mounted for pivotal movement about spaced axes on a frame, male die blocks mounted on the arms for movement therewith toward confronting angularly related surfaces of a female die member. A plurality of such female die members may be mounted on a rotatable support table such that the support surfaces of the female dies define radially extending angular grooves. The support table may be incrementally rotated for sequentially effecting a spike straightening operation, the table being locked at the spike straightening station and thereafter automatically ejected.

Abstract: A die for forming a Y-form rack portion of a steering rack bar from a blank by forging in which the die has at least three forming elements (44, 47, 48) relatively movable on application of forging pressure to the die to converge on a blank therein, a first of the forming elements (44) having in it cavities the shape of which corresponds to the shapes of the teeth to be formed, second and third forming elements (47, 48) having forming faces to form longitudinal guide faces (4, 5) on the Y-form rack portion on the side thereof opposite the teeth (8). The three forming elements (44, 47, 48) are shaped and arranged to move together to converge on the blank to transform it into the final form in such a manner as to inhibit escape of the material of the blank between the first and second or first and third forming elements up to substantially the last instant of closure of the die.

Abstract: A bottom expander for a flat bottom paper container of noncircular cross-section comprises a ring having an aperture surface for closely embracing the bottom rim of a container and plate-like tool elements, each having a radially outer edge surface which opposes and clampingly cooperates with that aperture surface. Each tool element is fastened to the front end of a leaf spring, the rear end of which is anchored in fixed relation to a support for the ring. The leaf springs support the tool elements in coplanar relation and so flex as to confine the tool elements to translatory motion that carries their outer edge surfaces toward and from the aperture surface, thus eliminating sliding guidance for the tool elements. The leaf springs also bias the tool elements to home positions in which they are spaced from the aperture surface.

Abstract: An apparatus for straightening suspension bars removed from cathode plates includes a horizontal press, a vertical press, a vertically movable stop plate, and an ejector in the horizontal press. The horizontal press pushes the suspension bar against the stop plate when the stop plate is in its upper position, and ejects the straightened suspension bar laterally when the stop late is in its lower position.

Abstract: In a hydraulic forging press having one or a plurality of press rams actuated reciprocatively through working oil by reciprocating motion of pump ram given by mechanical driving means, a closed forging press being provided with one or a plurality of punch rams disposed in a position to communize said working oil with said press ram and perform double action with said press ram, and actuated through said working oil by reciprocating motion of said pump ram.

Abstract: An apparatus for reducing the radius of the bend in a U-shaped tube comprises two squeeze dies and a back die. The back die is hollowed to form a chamber that accommodates the bent section of the tube and supports the entire circumference of the tube at the center of the bent section. Mating slide surfaces on the back die and the squeeze dies cooperate to extend the back die during squeezing in such a manner as to accommodate the longitudinal extension of the tube legs that results from the squeezing; i.e., there is no relative longitudinal movement between the squeeze dies and the tube legs. This arrangement enables relatively thin-walled tubes to be squeezed without undue deformation of the tube.

Abstract: A method and apparatus for making a housing member with a projecting bracket receiving adaptor from a sheet of flat material in which the material is formed in progressive dies by displacing material in the direction of die movement and also transversely thereof by a die arrangement movable into engagement with a portion of the material displaced in the direction of die movement to confine that portion while permitting displacement of the unconfined portion transversely.

Abstract: A device is disclosed for conforming a blank metal sheet, preferably aluminum, to the shape of a die which includes pressure means for holding the blank metal sheet firmly against the die surface while actuating cam members to conform the blank metal sheet into a final desired shape as defined by the die member.

Abstract: A tool for preforming a section of a tubular connector, the connector used for joining two optical fibres in end to end relationship. A plurality of forming members extend radially in a holder and spaced circumferentially around the tubular member support means supports a mandrel in the bore of the tubular member, coaxially thereof, and cams push the forming members radially inward to form a plurality of lobes in the section of the tubular member. The radially inward extremities of the lobes are pushed into contact with the mandrel to define a central bore for reception of the uncoated ends of the fibres. The forming members having a Vee formation with an inclined face at each end of the Vee formation.