Abstract: A drilling bottom hole assembly for loss circulation mitigation includes a drill bit configured to drill a wellbore in a formation. The drill bit is attached to a drill string. The wellbore includes a high-loss circulation zone into which drilling fluid is lost during drilling the wellbore. An under reamer is attached to the drill string upstring of the drill bit. The under reamer is downhole of the high-loss circulation zone. The under reamer, in response to actuation, is configured to widen a diameter of the high-loss circulation zone. An expansion assembly is connected to the under reamer. The expansion assembly surrounds the drill string upstring of the under reamer. The expansion assembly is configured to cover the high-loss circulation zone after the diameter of the high-loss circulation zone is widened by the under reamer.

Abstract: A steering rack (11a) meshes with a pinion rotatably driven by the input shaft (6) of a steering gear (5) constituting an automotive steering device. The steering rack (11a) is provided with a an axially extending rod part (15) of round cross section, and a plurality of rack teeth (16) formed on a radial one side surface of an axial portion of the rod part (15), the rack teeth (16) meshing with the pinion. At least one dummy tooth (42) is formed in portions that are axial parts of the rod part (15) and are adjacent to both axial sides of the plurality of rack teeth (16). The dummy tooth (42) has a tooth height less than the rack teeth (16) and does not mesh with the pinion.

Abstract: An instrument panel beam is the instrument panel beam that is arranged in the width direction of an automobile, and includes: a large-diameter hollow tube having a hollow cylindrical shape; and a small-diameter hollow tube which is joined to the large-diameter hollow tube in an axial direction, has a diameter that is smaller than that of the large-diameter hollow tube, and has a hollow cylindrical shape. The small-diameter hollow tube includes two flat plates that extend in a longitudinal direction and two bends that are curved in a circumferential direction, and the flat plates and the bends are alternately arranged in the circumferential direction.

Abstract: A device to process a blank (3) that includes at least one outer shaping tool (8) that may be radially positioned or radially displaced. An inner shaping tool (9) is mounted co-axially to the main machine axis (x) of the main spindle (1.1). The inner shaping tool (9) may be axially displaced and/or axially positioned with respect to the axial position of the outer shaping tools (8).

Abstract: A method of forming a groove in a pipe element by spin forming wherein the pipe element is pinched between an arbor revolving in an eccentric orbit of expanding diameter within the pipe element and an outer die which captures the pipe element. The pinching action causes a portion of the pipe element to move radially inwardly away from the die contrary to the direction of the motion of the arbor.

Abstract: In a method for forming a pipe element, a spin forming tool is revolved in an orbit of increasing diameter within the pipe element. The pipe element is captured within a die. The method forms a circumferential shoulder at one end. The shoulder has an outer diameter greater than the outer diameter of the pipe element. A groove is formed adjacent to the shoulder. The groove has a floor surface with an outer diameter less than the outer diameter of the pipe element. A bead is formed contiguous with the groove. The bead has an apex with an outer diameter greater than the outer diameter of the pipe element.

Abstract: A material that dissolves or disintegrates is secured to an inside surface of tubular goods before swaging or expansion takes place. The material remains in position as the swaging occurs and post expansion is removed leaving a recess of a desired shape to function for a variety of purposes depending on its shape and location. At the end of a tubular it can serve as a bell into which the next string is expanded for a monobore completion. In other locations in a tubular it can function as a landing collar for a variety of tools. It can also function as a seal bore as the added material is removed preferably with water. The preferred material is an alloy of aluminum, tin and zinc.

Abstract: The present invention provides a tube end molding method comprising: a tube shrinking step for forming a tapered portion and a small diameter tube portion at one end of an original tube; a preparing step for preparing a holding die having an original tube bore and a tube expanding bore; and a tube expanding step including a first step for mounting the original tube at the original tube bore of the holding die, a second step for folding the small diameter tube portion inside the original tube beginning at the tapered portion, and a third step for pressing the folded portion against an inner wall of the tube expanding bore.

Abstract: An end plunger for end feeding during a hydroforming process (such as tube hydroforming) has at least one releasable seal. The effect of the releasable seal is that it avoids pressurizing the blank in a nip area, thereby reducing friction and wear, and allowing increased end feeding with a given end feeding force. The releasable seal may be actuable, for sealing or releasing. The plunger may be modular or monolithic. A kit and method may incorporate the end plunger.

Abstract: A method of forming a leak tight connection between a pipe and a port made of different metals is described. A leak tight connection between a pipe made of a first metal and a port made of a second metal is also described.

Abstract: An apparatus for collapsing an expandable stent can include a plurality of movable members braided together to form a tubular member or main body portion. The movable members can at least partially define a lumen in the main body portion. The main body portion can be adapted to circumferentially apply an inward force as the diameter of the main body portion is reduced. The diameter of the main body portion can be reduced by moving opposing ends of the main body portion away from each other. An expanded expandable stent can be collapsed by positioning the stent inside the lumen of the main body portion and pulling opposing ends of the main body portion apart. An intermediate layer can be provided between the stent and the main body portion to reduce shear stresses and point forces on the stent.

Abstract: A stent is mounted upon a tubular braid. A tapered mandrel is placed within the inner lumen of the braid to allow the stent to be expanded to a larger diameter. The tubular braid acts as a transport that reduces friction between the stent and the mandrel to help uniformly stretch the stent circumferentially. Uniquely shaped expansion mandrels limit the stresses applied to stent struts while the stent is expanded to a larger diameter. A plurality of longitudinally extending expansion blades cooperates to form a complete mandrel body. The expansion blades lie adjacent to one another and are capable of independently moving relative to each other in a longitudinal direction. Subsets of alternating expansion blades can be moved axially relative to the other subsets. The expandable mandrel may include numerous regions having progressively larger diameters than an adjacent region.

Abstract: An expansion bullet for a heat exchanger tube includes a leading edge face, a trailing edge face, and a bullet body insertable into a tube of a heat exchanger to expand the tube. The bullet body extends from the leading edge face to the trailing edge face and has an outer profile defined by a single radius. An expansion mechanism for a tube of heat exchanger includes a bullet driving device and an expansion bullet drivable by the bullet driving device. The expansion bullet includes a leading edge face, a trailing edge face, and a bullet body insertable into a tube of a heat exchanger to expand the tube. The bullet body extends from the leading edge face to the trailing edge face and has an outer profile defined by a single radius.

Abstract: The present invention provides an expansion die for manufacturing containers including a work surface including a progressively expanding portion and a land portion; and an undercut portion positioned following the land portion of the work surface. The present invention further provides a process for manufacturing shaped containers including providing a container stock having a first diameter; expanding at least a portion of the container stock to a second diameter with at least one expansion die; and forming an end of the container stock to accept a container lid.

Abstract: Apparatus, kits and methods for flaring an end of a stent that can then be placed within the ostium of a vessel are disclosed. Areas in which ostial stents with flared ends could be used may include, e.g., the left main artery, renal arteries, sub-clavian artery, right coronary artery, circumflex artery, et al.

Abstract: A hydro-forming tool is disclosed in which first and second electrohydraulic forming (EHF) electrodes are used to provide a pressure pulse in opposite ends of a tubular pre-form. Alternatively, an accumulator with a rupturable membrane may be provided in opposite ends of a tubular pre-form for hydro-forming the tubular pre-form. A multiple discharge hydro-forming tool is also disclosed in which several pairs of accumulators are provided with selectively rupturable membranes that are ruptured to provide a pressure pulse in opposite ends of a tubular pre-form. The accumulators or EHF electrodes may be sequenced to provide separate pressure pulses that may be coordinated with retraction of a filler plug or shifting of a split ring into their respective retracted positions. A plurality of pressure pulses may be used to form, pierce and trim the tubular pre-form.

Abstract: The present invention generally relates to a swage assembly that is movable from a compliant configuration having a first shape to a substantially non-compliant configuration having a second shape. In one aspect, an expansion swage for expanding a wellbore tubular is provided. The expansion swage includes a body and a solid cone disposed on the body. The expansion swage further includes a deformable cone disposed on the body, wherein the solid cone is made from a first material and the deformable cone is made from a second material and wherein the deformable cone is movable relative to the body when the expansion swage is in a compliant configuration. In another aspect, a method of expanding a wellbore tubular is provided.

Abstract: The invention relates to a method and apparatus for making a can, such as a paint can, comprising the steps of: i. providing a cylindrical body; ii. arranging piston means in a first opening of the cylindrical body for defining the diameter of the opening; iii. curling a free end of the first opening radially outwardly and axially along the cylindrical body thereby forming a curl, such that the defined diameter of the first opening is substantially circumferentially, dimensionally stable, and to the can and can body made.

Abstract: A method of forming a tube for a heat exchanger includes advancing an expansion tool into a tube a first time and engaging the expansion tool with the tube to expand the tube diametrically at least partially along a length of the tube. The expansion tool is at least partially retracted from the tube. The expansion tool is advanced into the tube one or more subsequent times thereby engaging the expansion tool with the tube one or more subsequent times to further expand the tube at least partially along the length of the tube.

Abstract: A pipe expanding device inserts a pipe expanding punch into an opening end portion of a steel pipe with a special shape in the state where the opening end portion of the steel pipe with a special shape is pressed in an insertion direction of the punch.

Abstract: The different advantageous embodiments provide a method and apparatus for forming materials that may comprise a body having a channel and an insert. The channel may extend to a first opening in the body and a second opening in the body. The embodiments may also provide a mandrel disposed in the channel of the body and the insert of the body. The mandrel may have a shaft, a head on the shaft, and a compressible material disposed between the head and the insert of the body. The embodiments may also provide a collar. The collar may have a diameter smaller than a diameter of the body. The embodiments may also provide a biasing system configured to guide the collar in a first direction to a first position and then to a second position and configured to apply force to the body in a second direction.

Abstract: Devices and methods for manufacturing fittings (2) with different ends (3, 4) are disclosed, such fittings permitting different measures of connection. For example, one fitting (2) is a threaded end connector with its one end (4) being potentially configured as a compression fitting and its other end (3) as a thread-bearing end. An intermediate section (5) having preferably a polygonal cross-section is provided between the two ends (3, 4). Starting with a pipe piece (1), the manufacture takes place in a few process-safe method steps.

Abstract: An assembly for actuating a pipe expander, the assembly comprising a first actuator, arranged to engage a pipe expander head and actuate the same a second actuator, spaced apart from the first actuator and operatively engaged therewith such that operation of the second actuator effects operation of the first actuator to actuate the pipe expander head.

Abstract: A minimum diameter full-strength pipe connection of low cost is disclosed for all services.

Abstract: In a state where the expanded protruding portion of the heat-exchanging tube, which has been expanded inside a grip portion of a chucking sleeve whose diameter has been reduced by a clamp bushing, is gripped by the grip portion, a tube expanding billet is inserted into a yet-unexpanded part of the heat-exchanging tube to cause tube expansion. When doing so, a guide portion, which is formed on a flare punch and has the same diameter as the maximum outer diameter of the tube expanding billet, is inserted inside the expanded protruding portion of the heat-exchanging tube gripped by the grip portion.

Abstract: A geometrically optimized expansion cone for radially expanding a tubular member. In some embodiments, the expansion cone includes an annular body having an outer surface. The outer surface includes a linear surface having a constant diameter, a curvilinear surface extending from the linear surface, a recessed surface having a diameter less than the diameter of the curvilinear surface, and a chamfer between the recessed surface and the curvilinear surface. The diameter of the linear surface is substantially equal to an inner diameter of the tubular member after expansion, while the chamfer has a maximum diameter less than an inner diameter of the tubular member prior to expansion. The curvilinear surface has a diameter defined by a radius of curvature which is tangent to the chamfer at the maximum diameter and tangent to the linear surface.

Abstract: A screwed pipe connection for connecting a pipeline including a connection end having a formed wall region. The screwed pipe connection includes a connection part and a union joint part. Proceeding from the end face of the connection end of the pipeline, an outside cross-section of the pipeline increases and is larger than the nominal outside cross-section, then decreases again. Proceeding from the end face, a clear inside cross-section of the connection end is larger than the nominal inside cross-section and decreases to the nominal inside cross-section. The wall thickness on the end face is smaller than the nominal wall thickness, and wherein an inner material difference, resulting from the deviation of the inside cross-section from the nominal inside cross-section, and an outer material difference, resulting from the deviation of the outside cross-section from the nominal outside cross-section, deviate from one another by a maximum of 30 percent.

Abstract: An exemplary embodiment of the invention provides a method for producing an ultra thin wall metallic tube by cold working method with significant wall thickness reduction. In a method for producing the metallic tube with a cold pilger mill according to the invention, cold rolling is performed while tube diameters are being expanded using rolls having tapered groove dies whose calibers increase from an engaging entry side toward a finishing exit side. In a method for producing the metallic tube with a drawing machine according to the invention, cold drawing is performed while the tube diameters are being expanded using a solid die whose calibers increase from an engaging entry side toward a finishing exit side and a plug of a tapered mandrel bar whose diameters increase from an entry side of the die toward an exit side. In the metallic tube producing method, a maximum diameter of the plug or tapered mandrel bar may be larger than an outside diameter of the mother tube.

Abstract: A riser tensioner cylinder rod incorporates a thin, corrosion-resistant alloy tube over a pre-machined steel alloy rod. The tube is swedged at one end and expanded to the inner surface of a split die. A gradual tapered surface on a stretching die provides a smooth transition during a stretching process for the tube. A pressurizing vessel traps an outer lip of the pre-swedged tube. Pressurized fluid in the vessel simultaneously causes the tube to expand and force the rod into the tube inner diameter. At the completion of the process, the pressurizing vessel is removed. The stretched tube is parted off at both ends and the stretching die is removed from the rod to complete the assembly.

Abstract: The invention relates to a container comprising a diaphragm (40) secured to a can body (1) by means of a clamped seal. In particular, a method and apparatus for making the container are disclosed.

Abstract: A method of expanding tubing comprises locating an expansion device in tubing to be expanded, vibrating one or both of the tubing and the expansion device, and translating the expansion device relative to the tubing, the vibration acting to reduce friction between the tubing and the device.

Abstract: A screw plug for a liquid conduit, particularly an oil pipe or an oil container, comprising a cylindrical shaft that is placed on a top plate and is provided with an external thread. A pocket hole having a polygonal cross section is centrally arranged on the top plate as a receiving member for a tool. The shaft is embodied as a tubular butt that is provided with the external thread. A pocket hole which is arranged coaxial to the pocket hole of the top plate extends from the face of the shaft. In order to produce the screw plug, a blank comprising the cylindrical tubular butt that is connected to the top plate in a molded on manner is made, the inner diameter and outer diameter of the tubular butt being smaller than the final corresponding diameters (e, f) of the screw plug. The tubular butt of the blank is then enlarged by applying pressure to the inner wall surface of the pocket hole thereof.

Abstract: The plug is for expanding the inside diameter of the end portion of a metal pipe. Its cross section is a circle, and includes a taper portion and a parallel portion connected to the tail end of the taper portion. The diameter of the taper portion gradually increases from the head end of the taper portion to the tail end of the taper portion where the diameter is D1. The axial distance LR from the point where the diameter D2=D1×0.99 to the tail end where the diameter is D1 satisfies the Expression 22?LR/((D1?D2)/2)?115. The taper angle on the surface where the diameter is D2 is larger than or equal to the taper angle on the tail surface of the taper portion following the point where the diameter is D2. The diameter of the parallel portion is D1.

Abstract: The invention relates to a method for radially expanding a container body, comprising the steps of: i) providing a cylindrical container body having a longitudinal weld seam; ii) providing the container body at least one end with a flange; iii) clamping the container body circumferentially at the flange in a suspended state; and iv) radially expanding the suspended and clamped body from the clamped body end towards the suspended body end, to an apparatus therefore and to the container body and container.

Abstract: Fluid conduits for plumbing and other uses having integral end fittings are disclosed herein. A method of forming a fluid conduit in accordance with an embodiment of the disclosure includes providing a copper tube having a first inner diameter and a first wall thickness, and heat treating an end portion of the copper tube to a predetermined hardness. The method can further include increasing the wall thickness of the end portion from the first wall thickness to a second wall thickness, and increasing the inner diameter of the end portion from the first inner diameter to a second inner diameter. The method further includes forming a circular groove in an interior surface of the end portion and positioning a seal in the circular groove.

Abstract: In a tube expanding apparatus of a damper tube supporting a thrust force of a punch applied to the damper tube by a stopper at a time of retaining one end of the damper tube by the stopper, inserting the other end of the damper tube to a die, inserting the punch to the other end of the damper tube so as to propel, and expand the other end of the damper tube while carrying out an ironing operation, the apparatus is provided with a stopper releasing means for releasing the stopper at a time when a load in an axial direction applied to the damper tube due to an elongation by the ironing work of the damper tube increases over a critical load which is previously determined to be a smaller load than an expected buckling load in the damper tube.

Abstract: The present invention provides an expansion die for manufacturing containers including a work surface including a progressively expanding portion and a land portion; and an undercut portion positioned following the land portion of the work surface. The present invention further provides a process for manufacturing shaped containers including providing a container stock having a first diameter; expanding at least a portion of the container stock to a second diameter with at least one expansion die; and forming an end of the container stock to accept a container lid.

Abstract: The method for the manufacture of wall connector pieces is based on a thin-walled tubular blank which is first reduced in diameter at least one, preferably both ends in order to increase the wall thickness. In this way, a basis is provided for further shaping, for example, the manufacture of a connector piece (4) or a closed end (5).

Abstract: According to a bulging device and a bulging method using a profile element pipe, for example, even when a profile steel pipe having a cross sectional shape varying in the axial direction as in a tapered pipe is hydraulically bulged, a bulging in which an internal pressure loading and an axial pressing are combined with each other can be performed to provide a larger expansion ratio than a conventional case and a joining and socket connection thereof to the other part can also be easily performed.

Abstract: Methods and apparatus for radially expanding and plastically deforming an expandable tubular member using an expansion device for radially expanding and plastically deforming the expandable tubular member, an actuator coupled to the expansion device, and an anchor coupled to the actuator. The anchor includes a resilient member that is selectively deformable between a first position wherein the resilient member does not engage the expandable tubular member and a second position wherein the resilient member engages the expandable tubular member so as to releasably couple the anchor to the expandable tubular member.

Abstract: An apparatus for sizing a pipe end comprising: a plug 3 for sizing the pipe end; a chuck 2 for clamping the pipe; and shifting means for shifting the position of the plug 3 and/the chuck 2, which are placed successively from the end of the pipe 2, and the plug 3 has a circular cross section, and is constituted by a taper portion 31 and a diameter equivalent portion 32 continuously formed from the tip of the plug in succession. The outer diameter of the taper portion 31 is gradually expanding from the tip toward the rear end while satisfying the following formulas (1) and (2). The chuck 2 is capable of changing clamping position of the pipe 1. This apparatus makes it possible to size the inner diameter of a pipe end with superior dimensional precision 22?LR/(D1×0.01/2)?115 ??(1) R2?R1 ??(2).

Abstract: In a method of producing an ultra thin wall metallic tube by a cold drawing process in which a drawing machine is used, a wall thickness of the metallic tube is reduced to perform drawing while a tube-wall centerline diameter of a tube material is expanded, using a solid die which gradually increases in diameter from its engaging inlet side toward its work-ending outlet side and a plug or a tapered mandrel bar which gradually increases in diameter over a corresponding distance from the engaging inlet side of the solid die toward the work-ending outlet side of the solid die, whereby the wall thickness can dramatically be reduced.

Abstract: A method of expanding tubing comprises locating an expansion device in tubing to be expanded, vibrating one or both of the tubing and the expansion device, and translating the expansion device relative to the tubing, the vibration acting to reduce friction between the tubing and the device.

Abstract: In a method for producing a coupling on a pipe, preferably consisting of copper or steel or Cu—, Ni—, Fe— alloys, by way of a preferably graduated or one-stage expansion of the pipe end to create a much larger difference in diameter, an expansion tool is introduced axially into the end of the pipe. Once the expansion tool has been introduced into the pipe end, the region of the pipe end that is to be or has been expanded is completely or partially compressed, by a force acting axially on the pipe end, so that the external diameter of the pipe end that is to be processed is delimited by one or more shaping jaws that completely or partially surround the pipe end. The invention also relates to a device for producing a coupling on a pipe end according to the method.

Abstract: An assembly for actuating a pipe expander, the assembly comprising a first actuator, arranged to engage a pipe expander head and actuate the same a second actuator, spaced apart from the first actuator and operatively engaged therewith such that operation of the second actuator effects operation of the first actuator to actuate the pipe expander head.

Abstract: A method of manufacturing a push rod from a length of tube having a first end and a second end. The tube is held in a first fixture and a first tool is brought into engagement with the first end while a force is applied to deform the first end into a cone. A disc is thereafter affixed to the cone through a welding process. The tube with the disc attached is moved to a second fixture and a threaded shaft is partially inserted into the tube adjacent the second end. A radial force is applied to the tube that causes the tube to be compressed into engagement with the threaded shaft. The threaded shaft is then rotated causing its translation within the tube to establish a desired length between a face on the disc and a head on the threaded shaft to complete the manufacture of the push rod.

Abstract: Tools for expanding (i.e., flaring and swedging) the ends of metal tubes are configured for attachment to a powered impact hammer, such as an air hammer. A swedging tool for swedging an end of a metal tube has a swedging body with a die section for expanding the tube when driven thereinto and a flanged shank attached to the swedging body and configured for engagement by a powered impact hammer. A flaring tool for flaring an end of a metal tube includes a flaring body having a die section for flaring the tube when driven thereinto. A flanged shank is attached to the flaring body and configured for engagement by a powered impact hammer. A method for expanding an end of a metal tube entails attaching a die body for expanding the end of the metal tube to a powered impact hammer, aligning the die body with the inner diameter of the metal tube, activating the powered impact hammer, and urging the die body a determined distance into the metal tube.

Abstract: A method and apparatus for providing an expandable threaded connection between segments of expandable tubulars. Threaded connections are machined into pre-expanded ends of tubulars. Once the threaded connections are machined into the pre-expanded ends, two joints of tubulars are connected using the threads, thus creating a pre-expanded threaded connection. After a tubular string is made up and lowered into a wellbore, the entire length of the string is expanded using known methods for expanding tubulars. During the downhole expansion operation, the pre-expanded threaded connections experience minimal expansion. The minimal downhole expansion of the pre-expanded threaded connections allows the threaded connections to maintain their sealing ability and coupling strength.

Abstract: Tools for expanding (i.e., flaring and swedging) the ends of metal tubes are configured for attachment to a powered impact hammer, such as an air hammer. A swedging tool for swedging an end of a metal tube has a swedging body with a die section for expanding the tube when driven thereinto and a flanged shank attached to the swedging body and configured for engagement by a powered impact hammer. A flaring tool for flaring an end of a metal tube includes a flaring body having a die section for flaring the tube when driven thereinto. A flanged shank is attached to the flaring body and configured for engagement by a powered impact hammer. A method for expanding an end of a metal tube entails attaching a die body for expanding the end of the metal tube to a powered impact hammer, aligning the die body with the inner diameter of the metal tube, activating the powered impact hammer, and urging the die body a determined distance into the metal tube.

Abstract: A radial expansion system.