Abstract: An apparatus and method of manufacturing a drum, for use in an appliance such as a dryer, that prevents noise and vibration during operation. The method involves forming a cylindrical drum; reducing a diameter at both ends of the drum; forming beads in a central part of the drum; and bending both edges of the drum.

Abstract: Apparatus for both forming and coping the end of a tube. The tube is gripped such that it is aligned with a movable first tool assembly that is positioned, in a first operation, adjacent said tube end. The tool assembly is then controlled in a manner such that the tube end is formed. Thereafter, the first tool assembly is removed and replaced with a second tool assembly which is controlled in a manner such that the formed tube end is then coped. The movable tool assembly is rotatable about its axis to a predetermined plane.

Abstract: A method for manufacturing a heat pipe having an enlarged portion includes the steps of: preparing a hollow tubular material having a uniform outer diameter; forming the tubular material with an enlarged portion having a different or larger outer diameter by narrowing or enlarging the tubular material; arranging a capillary structure into the tubular material; filling a working fluid into the tubular material after sealing one end of the tubular material; sealing the end to form a heat pipe after performing a degassing operation; and pressing the enlarged portion obtained in the previous step to form a flattened enlarged portion on the heat pipe.

Abstract: The invention relates to a method for manufacturing tubes and profiles with variable wall thickness over the length. The method comprises the steps of flexible rolling of continuous material strip with variable thickness in the longitudinal direction of the strip material to a final wall thickness which is continuously reduced with respect to the original wall thickness, reshaping the material strip to form a continuous tube or profile and cutting to length individual tube or profile pieces from the continuous tube or profile.

Abstract: An end formed tube to which a molded plastic part is attached and sealed. One end of the end formed tube is rolled over to form a lip, which prevents the removal of the molded part. The rolled over lip portion creates a void in which plastic overmold from the plastic part is deposited, thereby creating a positive seal and attachment. The end of the tube in which the lip is formed is configured in a polygonal shape to provide torsional strength to the interface of the molded part and the tube.

Abstract: A method for expanding tubular blanks includes pre-expanding or initially expanding a section of the tube by forcing a punch into an open end of the tube. The punching process may be repeated to achieve up to approximately 50% expansion from the original configuration of the blank. Then, the same pre-expanded section can be further expanded by hydroforming such that the blank is filled with pressurized fluid to achieve further expansion of the initially expanded section up to approximately 100% expansion from the original configuration of the blank. As a final step, the open end of the expanded tube may be cut to its ultimate shape.

Abstract: The invention herein illustrates a tool and method for use in joining pipes or other tubular fittings having different diameters in a telescopic type joint. The preferred tool provides a pair of dimples or marks on one of the pipes to obstruct insertion as one pipe is slid into another. The obstruction thus provides a uniform overlap of the pipes to ensure sufficient surface area for the material used in the joining process, such as a brazing metal. Overlapping uniformity provides a strong, durable joint. The tool includes a pair of jaws which can be closed along the wall of the tubular member to form for example, a pair of dimples therein. In an alternate embodiment of the pipe fitting tool only one dimple is formed in the pipe wall from a single ram.

Abstract: To make a peripheral lip region to be formed with chamfered portions by the use of a plastic working technique, to enable the use of a cup forming punch of a simplified shape so that a mold used therewith can be easily assembled and the punch when worn down can easily be repaired, a method of making an outer race of a constant velocity universal joint of a tripod type includes an upsetting step during which not only are outer peripheral shapes of a small diameter portion (W3a) and a large diameter portion (W3b) defined, but a recess (Wb) having a tapered peripheral wall face (Wba), which eventually defines general shapes of the chamfered portions (10) of the outer race (1), is formed in an end face of the large diameter portion (W3b). During a cup forming step, the tapered peripheral wall face (Wba) defined during the upsetting step is rearwardly pushed while its shape is maintained.

Abstract: A multipurpose horizontal press having a fixed workpiece-holder for a tubular workpiece to be drawn or tapered comprising a press body (1) surmounted by a worktable (2), having a superior surface (3) and an inferior surface (4), on the worktable (2) being positioned horizontally an operating hydraulic cylinder and, in correspondence with a through opening (70), a bridge (8) to which inferiorly a superior jaw (12) having its concavity facing downward, is rigidly connected. Opposite to the bridge (8) a support element (13) extends under the inferior surface (4) and supports a clamping hydraulic cylinder (14), having a rod (15) facing upward and provided with an inferior jaw (16), being sledge vertically inside the bridge (8) toward the superior jaw (12) and away from it.

Abstract: An apparatus and process is disclosed for spinning circumferential articles with constant length end surfaces. The article is first spun to define the circumferential surface, and a mandrel is then introduced, whereby the mandrel has a shoulder positionable adjacent to the end surfaces. The end surfaces, while supported by the mandrel, are further spun, and the material is flow formed into the shoulder, to define a constant and defined length to the article.

Abstract: A method for making a tubular element, in particular a motor vehicle front cross member (1), for forming at least an air conduit (2,3,4) including at least two half-shells (5,6) assembled on two outer longitudinal edges (5a, 6a–5b, 6b), facing each other, with punctiform mechanical bond elements (7). The method further comprises the production of sealing elements (8) for the tubular element (1) consisting of at least a continuous convex or concave deformation simultaneously produced on each of the outer longitudinal edges (5a, 6a–5b, 6b) facing the two half-shells (5 and 6), in the proximity of the mechanical bond elements (7).

Abstract: A clutch housing assembly for use in vehicle drivelines includes at least one strengthening member at an open end of the housing. The strengthening member preferably is formed by cutting away portions of the housing near the open end and then deforming the remaining portions. The deformed portions preferably are folded over and against a surface of the housing near the open end. The strengthening members provide additional strength to the housing at the open end to resist deformations that may otherwise occur because of forces incident on the assembly during operation of the vehicle driveline.

Abstract: A steel pipe is welded to a threaded connector that has an end with a desired nominal inner diameter. A swage is forced over an end of the pipe, reducing an outer diameter and an initial inner diameter of the end of the pipe. A die is then forced into the end of the pipe, the die having an outer diameter sized to increase the inner diameter of the end of the pipe to the nominal inner diameter of the end of the connector. A weld groove is machined on the end of the pipe and the ends are abutted and welded at the weld grooves.

Abstract: Special steel press fittings are produced in two process steps, which can be performed simultaneously, or also one after the other. The cut to size blank is widened in a die is upset in order to form the desired pipe connection areas.

Abstract: An expansion section for expanding the distance between longitudinal side surfaces of an opening of a tube when being inserted a predetermined depth into the opening is formed an expansion wedge body, and guide protuberances are protrusively formed on the respective longitudinal sides of the expansion section. The guide protuberances are inserted into the spaces provided on the respective sides of the opening of the tube, thereby guiding the expansion section into the opening.

Abstract: A method for manufacturing a fuel inlet having a good sealing property and a screw structure formed in a precise position involves expanding one end of a long-length stainless pipe (metal pipe) using a cored bar, the tip of the expanded portion which becomes non-uniform as a result of the expanding step is cut off, a screw structure is formed in the expanded portion by using a punch, the tip of the expanded portion which becomes non-uniform as a result of the screw structure forming step is cut off, and thereafter curl forming is conducted to the end of the expanded portion which becomes uniform by using a die so as to provide a seal portion.

Abstract: An apparatus for collecting a body fluid for testing for an analyte includes a needle for penetrating a patient's skin to access the fluid within the skin. The needle has a hollow body extending from a first end to a second end. An interior surface of the body defines a fluid pathway extending between the ends. The second end is positioned to deposit fluid for testing. The first end has a beveled face on a front side of the body. The beveled face terminates at a penetration tip with the beveled face having an opening in communication with the fluid pathway. The penetration tip is burnished to a rounded shape and bent to facilitate low pain and rapid fluid collection.

Abstract: The invention concerns a method using steps of placing a tube in an opening matrix having an impression corresponding to the desired final external shape; inserting the end of the tube into a cavity of a shaping component, the cavity having a base, a side wall with adapted shape, and an opening opposite the base; pressing the end of the tube against the base of the cavity, leaving a clearance between the opening of the cavity and the matrix; applying an essentially axial force on the end of the tube, the zone application of the force rotating about a longitudinal axis of the tube thereby causing gradual deformation of the tube; withdrawing the end of the deformed tube outside the cavity of the shaping component and outside the matrix.

Abstract: A cylindrical portion formed in the inside end portion of the hub is caulked and spread using a pressing mold assembled to an oscillating/caulking apparatus to thereby form the caulking portion. In working or forming the caulking portion, a cylindrical projecting portion formed in the central portion of the leading end face of the pressing mold is inserted into the cylindrical portion to thereby prevent the inside diameter of the cylindrical portion from reducing excessively.

Abstract: The invention relates to a method for the production of a rolled edge from an edge section (11) of a tube, wherein a flanging die is driven onto the edge section and flanges it into a roll. According to the invention, an initial area (14) of the edge section (11) is previously rolled in a positive fit manner by means of a forcibly controlled tool (30). This prevents buckling of the initial area (14), which has a controlled geometry as a result of rolling. The novel method is preferably used in the production of valve seats in so-called aerosol domes (10) for spray cans.

Abstract: A method of manufacturing a cylinder, includes a step of inserting a cored bar 2 into piping material 1 having a reduced inner radius at one end and supporting the end of the cored bar with the reduced radius section of the piping material 1. The method also includes rotating the piping material 1 and the cored bar 2, displacing the piping material 1 in an axial direction while passively rotating at least one roller 3 compressing the outer periphery of the piping material 1 and applying a spinning operation to the piping material while pressuring and retaining the piping material between the cored bar 2 and the roller 3. Thus the thickness of the middle section of the piping material is made less than the thickness of the end sections by moving the roller into a position closer to the cored bar in the middle section than in the end sections of the piping material. In this manner, processing of the cylinder can be effectively performed without wastage of the material thereof.

Abstract: A fuel inlet comprises an inlet pipe, a breather tube, a retainer, a spiral groove, and the like. The inlet pipe is formed by processing a metal pipe and has an expanded portion, a taper portion, and a main body in the order from the fuel port. The expanded portion is formed by increasing the diameter by bulging. In order to prevent defects in the pipe such as cracks from being caused during bulging, SUS304, SUS304L, or SUS436 according to JIS is used as the material of the pipe. The diameter of the main body is 25.4 mm and the diameter of the expanded portion is 50 mm. A spiral groove on which a screw-type fuel port cap can be screwed is formed in the vicinity of the open end of the expanded portion, by crimping the inlet pipe and the retainer together. On the outer surface of the expanded portion in the vicinity of the open end is provided an outer-cylinder-like flange formed integrally with the inlet pipe.

Abstract: A fuser roller is obtained by heating a blank over predetermined regions starting from both the opening ends, and then necking the heated regions of the blank by moving a forming roller with rotation on the heated regions through the external pressing of the forming roller against the heated regions of the blank being rotated on its axis to draw form sidewalls integrally at both ends of a cylindrical body of the blank, respectively, and draw form cylindrical shafts integrally with the sidewalls, respectively. In this manner, the fuser roller can be fabricated using a single processing machine with respect to a single pipe member, which reduces equipment cost, further enhances production efficiency and implements low-cost production of fuser rollers.

Abstract: At the time of spinning a tip reduced portion 3, an angle of inclination of the outer periphery of the tip reduced portion 3 with respect to an axis of a tube stock 2 is increased on a center side of the tube stock 2 and reduced on an end edge side thereof. By this, a generating line of an outer peripheral surface of the tip reduced portion 3 is made into a form like a center recessed curved surface.

Abstract: The invention relates to a device for forming an end area of a workpiece (2), especially for cold press-forming an end area of a pipe, comprising two force transmitting elements (7, 9) which are guided in a common housing (3). The device is characterised in that a first pressure chamber (26) is located between the two force transmission elements (7, 9) and in that a second pressure chamber (28) is allocated to the second force transmission element (9). When the first force transmission element (7) is in the bracing position, the second force transmission element (9) can be displaced in relation to the first force transmission element (7) in order to form the workpiece.

Abstract: A method and apparatus for forming the free end of a length of metal foil wrap corrugated tubing, in which a free end of the tubing is first crimped against a mandrel, then folded to extend radially inwardly, then folded further to extend axially inwardly within the inside diameter of the tubing end, and then compacted axially to bring the corrugations into facing abutment with each other and tighten the formed end of the tubing against unwrapping of the metal foil. The crimping operation involves closure of a plurality of jaws around the free end of the tubing and deforming the tubing end against a tapering surface on an internal mandrel. The tubing is then gripped between jaws that form a radially indented channel in the periphery of the tubing, both to enhance the clamping action of the jaws and to isolate the formed end of the tubing from the remainder of the tubing.

Abstract: The invention relates to an apparatus for spreading and shaping can bodies, having a pin-like shaping tool that is forced from one end into the can body to be widened and a counter tool.

Abstract: A male terminal fitting has a tab (12) with a long narrow base (15) and a tip (16) at a leading end of the base (15). The tip (16) is arcuate in plan view and hence is narrowed toward its end. A mold (30) is provided with a pressing recess (31) and a closed back wall (32). The mold (30) is brought closer to the tab (12) from the front, so that the leading end of the tab (30) is inserted into a pressing recess (31) and strikes the closed back wall (32). Thus, edges (23) on the tip (16) are smashed and rounded and will not damage wall surfaces of a cavity or a rubber plug.

Abstract: A method of manufacturing a metal pipe with an eccentrically expanded open end comprises the steps of plastically deforming to a coaxially expanded state M1 so that an axial wall length L2 at a side to be eccentrically expanded is longer than an axial wall length L1 at the opposite side to be expanded without eccentricity. The coaxially expanded open end M1 is then plastically deformed to an eccentrically expanded state M2 by forcibly inserting an eccentrically expanding punch into the coaxially expanded open end M1. The eccentrically expanding punch has a boundary between a conical tip and a cylindrical body inclined with a predetermined angle &thgr; so as to bring the cylindrical body into contact with an inner wall of the coaxially expanded open end M1 at a side to be eccentrically expanded earlier than the opposite side to be expanded without eccentricity.

Abstract: A wheel bearing assembly for supporting a wheel is provided. The assembly includes a spindle defining a rotational axis and a support member for supporting the spindle. A wheel hub has a flange for securing the wheel thereto. The wheel hub is supported on the spindle and is rotatable about the rotational axis. A bearing assembly has first and second bearing members in spaced relationship from one another with a plurality of bearings interposed between the bearing members to permit relative rotation between the bearing members about the rotational axis. The first bearing member is arranged adjacent to the spindle and the second bearing member is arranged adjacent to either the wheel hub or the support member. An inner surface of the first bearing member has an annular counterbore. The spindle is deformed into the counterbore to axially secure the first bearing member to the spindle and prevent relative rotation between the spindle and the first bearing member about the rotational axis.

Abstract: To provide a multiple coat metal pipe and its fabrication method having excellent corrosion resistance without deteriorating chipping resistance or splashing resistance, capable of being fabricated easily and capable of simply carrying out peel off operation owing to a weak peel off strength wherein corrosion resistance of an end working portion is not deteriorated, there is provided a multiple coat metal pipe which is a metal pipe constituted by multiplexing and coating a first layer including a resin having an adhesive force in respect of a surface treatment layer formed on an outer peripheral face of the metal pipe and capable of being extruded and a second layer provided on an outer peripheral face of the first layer, having a chipping resistance and capable of being extruded, wherein a peel off strength between the first layer and the second layer is 75 g/cm or less.

Abstract: A method of fabricating a multiple coat metal pipe includes a first layer comprising a resin having an adhesive force extruded on a surface treatment layer on an outer peripheral face of a metal pipe and a second layer comprising a resin having a chipping resistance extruded on an outer peripheral face of the first layer providing a coating on the first layer in a substantially non-adhesive state. In the substantially non-adhesive state, a peel off strength between the first layer and a second layer is 75 g/cm or less and the peel off strength enables the second layer to be peeled off from the first layer without peeling off the first layer. The first layer has a different dissolving performance than the second layer and the second layer is extruded at a temperature equal to or higher than a melting point of the first layer.

Abstract: There are disclosed an expanded tube processing method and expanded tube processing apparatus of a cylindrical tube, for inclining an opening end portion of a work formed of the cylindrical tube of metal with respect to an axis of a work to perform tube expansion, in which in order to simply perform an expanded tube processing, a punch is disposed on an opening end side of the work of the metal cylindrical tube and the punch is inserted from the work opening end to perform the tube expansion on a work end. A punch 18 is inserted from the work opening end at a predetermined angle to a tube axis A of a work 6. During insertion of the punch 18, the punch 18 and/or the work 6 are moved in a direction Y1-Y2 substantially crossing at right angles to an advancing/retreating drive direction Z1-Z2 of the punch 18 to perform the expanded tube processing.

Abstract: A modular endforming mechanism for modifying an end of a thin-walled malleable tube is herein disclosed. The modular endformer comprises a gripping module having a collet means for grasping a tube inserted into the gripping module. The gripping module may be coupled to one of an expansion module and a reducing/flaring modular. The expansion module is constructed and arranged to actuate a sizing mandrel, which is inserted into the interior of the end of a tube to expand the diameter of the end of that tube. A forming insert works in conjunction with the sizing mandrel to limit the expansion of the tube diameter under the influence of the sizing mandrel.

Abstract: A tip assembly includes a tip having a nose portion. The tip defines a central bore. The nose portion includes a lip portion and defines a counterbore. The counterbore has a counterbore side wall and a seat surface. The counterbore is contiguous with the central bore. An insert member includes an inner surface, an outer surface and a side wall. The inner surface is opposite the outer surface. The side wall interconnects the inner surface and the outer surface. The insert defines a central aperture that extends from the inner surface to the outer surface. The insert is disposed within the counterbore such that the central aperture is substantially concentric with the central bore of the tip. The lip portion of the tip engages the outer surface of the insert.

Abstract: A pipe shaping method forms a narrow neck at one end of a workpiece in the form of an elliptical pipe having a cross sectional shape elongated in a predetermined elongating direction, with a roller.

Abstract: A process for forming tube-shaped hollow bodies made of metal, particularly made of aluminum, is described.

Abstract: The invention concerns a process for checking the quality of formings executed by a machine for forming tube ends, according to which the forming machine is equipped with a force transducer (33) which is capable of measuring the reactive axial force exerted by the tube on the tool (9a) in a forming pass and, for each forming, in a preliminary learning phase, the maximum reactive axial force exerted by the tube on the tool (9a) is measured, the quality of the executed forming is verified in conventional manner and the value of the maximum reactive axial force obtained in a forming of a quality meeting the required conditions is recorded, then, in each forming pass, the maximum reactive axial force exerted by the tube on the tool (9a) is measured, the value of the said maximum axial force is compared with the recorded reference value and the forming is validated if the measured maximum axial force corresponds to the reference force with a predetermined tolerance.

Abstract: A reduced resistance bead seal is integrally formed on a mounting surface of two matingly engageable members to form a leak-free seal between the two members despite any eccentricity or angular variances between the two members. In one embodiment, the reduced resistance bead is formed on an inner conical flange of an inverted flared end of a hollow fluid conduit. The bead presents a deformable surface as a fitting urges the flared end of the conduit into engagement with a conical seat in a receiver where eccentricity or angular variances exist between the flared end of the conduit and the conical seat. A unique method and a unique forming tool are used to form the reduced resistance bead in the flared end of the conduit simultaneously with the flaring of the end of the conduit.

Abstract: A method and apparatus for the formation of an enlarged end portion of a bar (48) by upset forging. Before upsetting, the bar end portion (46) is heated to a forging temperature and passed through a passage (40) of a form part (2,4) and into a cavity (44) with increased cross-sectional area which is defined by the form part (2,4). The portion of the cavity (44) which is located opposite the passage (40) is defined by wall (42) with a shape corresponding to the cavity's (44) cross section. For the formation of the enlarged end portion, the wall (42) is pressed against the end of the bar and upsets the bar end portion until the bar material fills the cavity (44). According to the method a bar portion which is located in the passage (40) is also heated to forging temperature, and the form part (2,4) is moved simultaneously with the wall (42), whereby this bar portion (48) is successively fed into the cavity (44) during the upsetting process.

Abstract: A method and tools for forming ridges or dimples in tubular members such as copper pipes is provided. A manual tool has a pair of jaws which can be adjustably positioned and has a threaded ram affixed to one of the jaws for rotation. The jaws are adjustable for holding various thicknesses of pipe walls in firm engagement as the ram is manually rotated to form a ridge in the pipe wall. A hydraulic tool is also described for high production requirements.

Abstract: A method including the following successive operations carried out on a tube section: a) swaging one end to form at least two longitudinal strips folded down edge to edge and radially projecting outwards; b) cutting out the external projection of the strips to obtain at least two longitudinally separate tabs; and c) shaping the tabs into wings. The method can be used for making stirrups or fork joints at the end of a tubular part. It can also be used to produce semirigid axles or cradles for motor vehicles.

Abstract: A method for forming a one-piece steering shaft member, such as an externally splined male steering shaft member (or yoke shaft) or an internally splined female steering shaft member (or slip yoke) is disclosed. A hollow cylindrical tube is initially provided which is preferably formed from a blank of a metallic material, such as aluminum, having an elongation factor of at least fifteen percent. It is desirable that the tube have a uniform wall thickness and define an outer diameter which is substantially uniform along the length thereof. The outer diameter of one end of the tube is reduced from its original diameter while the outer diameter of the opposite end is maintained at its original diameter. A splined surface is formed in the reduced diameter end portion of the tube. The splined surface is formed on the external surface of the yoke shaft and on the internal surface of the slip yoke. A yoke member is then formed in the opposite end of the tube.

Abstract: A tubular axle having a spindle and a bearing shoulder is formed directly into heat-treated tubing. The method generally includes a heating operation, and a two stage forming operation. The first operation is to induction heat a steel tubular axle blank to a temperature less than 1500 degrees Fahrenheit. The next operation includes forcing a preform die assembly onto the tubular blank to reduce a length of the blank to a second diameter while forming an intermediate section having a first and second ramped section. The final operation includes forcing an upset die assembly onto the end of the blank to form a gathered material section formed intermediate the first ramped section and the second ramped section. The second diameter provides a pre-machined diameter for the final axle spindle and the gathered material section provides a pre-machined area for the final integral bearing shoulder.

Abstract: A tool kit for forming a double flare on the end of deformable tubing includes a jig or bar assembly for holding the tubing, a combination gauge and tube forming anvil or adapter and a cone and yoke assembly. The gauge and tube forming anvil includes a lateral flange which is used to set the amount of extension of tubing from the bar assembly prior to deformation of the tubing by the adapter or anvil.