Abstract: A method includes powder forging and machining a workpiece that is fractured to divide the workpiece into separate components. In a green form in which the workpiece is formed of compacted powdered metal and has a body that is generally shaped as a parallelepiped with a pair of end faces. The body defines a bore, a pair of V-notches and a pair of channels. The V-notches are formed into the bore parallel to the central axis of the bore and cooperate to define a separation plane. Each of the channels is formed in an associated one of the end faces at a location where the separation plane intersects the end face. During forging, the channels are closed but create a stress riser that aids in directing the fracture when the components are separated from one another.

Abstract: A lower link (7) is formed of two components by being divided at a dividing surface (14) including the central axis of a crank pin bearing portion (11), the two components including a lower link upper (15) with an upper pin bearing portion (12) and a lower link lower (16) with a control pin bearing portion (13). The dividing surface (14) includes a first dividing surface (14a) located more on the upper link side than the crank pin bearing portion (11) and a second dividing surface (14b) located more on the control link side than the crank pin bearing portion (11). In the lower link (7), the first dividing surface (14a) has a surface roughness larger than a surface roughness of the second dividing surface (14b).

Abstract: Connecting rod ultrasonic-assisted splitting machining method and a machining device thereof, relating to the field of machining of a connecting rod. The machining device comprises a rack, a fixing block, a sliding block, a sliding block base, a vertical locking oil cylinder, a wedge-shaped pull rod, an adjusting block body, etc. By means of the method and the device thereof, the range of the material used for splitting the connecting rod is enlarged, the splitting force required during the splitting of the connecting rod, deformation of fracture surfaces, residues generated during the splitting process, out-of-roundness of big end holes of the connecting rod, and other situations are reduced, and the engaging accuracy of the connecting rod and the joint face of a connecting rod cover and the assembly quality of the connecting rod are improved.

Abstract: An iron-based alloy powder for powder metallurgy contains 2.0 mass % to 5.0 mass % of Cu, the balance being Fe and incidental impurities. From 1/10 to 8/10 of the Cu is diffusion bonded in powder-form to the surfaces of iron powder that serves as a raw material for the iron-based alloy powder, and the remainder of the Cu is contained in this iron powder as a pre-alloy. The iron-based alloy powder has superior compressibility to conventional Cu pre-alloyed iron-based alloy powders and enables production of a high strength sinter-forged member even when sintered at a lower temperature than conventional iron-based alloy powders containing mixed Cu powder.

Abstract: A connecting rod manufacturing method includes: forming, in an inner circumferential surface of a through-hole formed at an end of the connecting rod, a plurality of first holes as fracture start portions such that the first holes are arrayed in an axial direction of the through-hole and extend in a first direction; forming a plurality of second holes as the fracture start portions, each between adjacent ones of the first holes, such that the second holes are arrayed in the axial direction and extend in a second direction different from the first direction relative to the first holes; and fracture-splitting the end of the connecting rod into a rod part and a cap part using the fracture start portions as start points.

Abstract: A structural component for a motor vehicle, with a component body (2) made from a sheet, which includes at least one shell-shaped body portion (3) formed from the sheet and at least one receiving bush (6) formed from the sheet that extends along its circumference between first and second circumferential ends (4, 5), which at the first circumferential end (4) merges into the shell-shaped body portion (3) and at the second circumferential end (5) merges into a strengthening strip (7) formed from the sheet and attached to the shell-shaped body portion (3). The strengthening strip (7) completes the shell-shaped body portion (3) to form an at least partially closed hollow section (8).

Abstract: A connecting rod for connecting between a crankshaft and a piston, includes a small end with a cylindrical hole adapted to for receiving a piston pin, a big end having a crank pin bore adapted for receiving a crank pin of a crankshaft and a stem portion extends between the small end and big end. The stem portion can have an I-beam cross-section with a pair of legs and a web extending between the pair of legs. The web includes oppositely facing surfaces defining a thickness that is less than a thickness of the pair of legs. The web includes at least one grooved/recessed portion that is recessed relative to the oppositely facing surfaces of the web.

Abstract: A fracture-separated engine component and a method for manufacturing same is described. The engine component includes first and second parts each having a fracture surface extending along a fracture plane. Prior to fracture separation, the engine component is case-hardened by nitriding and has a nitriding hardness depth of 0.4 to 0.7 mm. After the nitriding, the engine component is cooled such that each one of the subsequent fracture surfaces reaches a temperature below ?100° C. The fracture separation is then performed. After, the engine component has two fracture surfaces along a fracture plane, the fracture surfaces having hardened peripheral areas and unhardened core sections. No point of the unhardened core sections located in the fracture plane is located at a distance greater than 1.1 mm from a nearest hardened peripheral area. Each one of the fracture surfaces includes elongated partial fracture surfaces with a width of less than 3.2 mm.

Abstract: Exemplary connecting rod cracking mandrels and methods are disclosed. A mandrel may include a pair of jaw elements slidably mounted relative to one another and separated from each other. Each one of the jaw elements has a pair of opposing side portions and a center portion disposed between the opposing side portions. Each one of the side portions is configured to contact an inner diameter surface of a bore of a connecting rod when the jaws are moved away from one another within the bore so as to break the connecting rod. The center portion is configured to be spaced apart from the inner diameter surface of the bore when the jaws are moved away from one another within the bore, such that the opposing side portions contact the connecting rod bore.

Abstract: A connecting rod having a small end and a large end, the small end including a pin bore defined by a pin bore surface. A thermal spray coating applied to at least a portion of the pin bore surface and a method of applying the thermal spray coating to the pin bore surface using a thermal spray technique.

Abstract: A bearing bushing for a connecting rod and a combination of a connecting rod and a bearing bushing are provided. The connecting rod has a small end which includes a bearing bore. A first region of the bearing bore, which in operation is subjected to compressive loading, is longer than a second region of the bearing bore which is subjected to tensile loading. In order to modify a bearing bushing and a connecting rod so that with simple production and optimized weight the connecting rod has good bearing properties for the piston pin, the bearing bushing already has, before insertion thereof into the bearing bore, a shape adapted to the end edge contour of the bearing bore, wherein the first region of the bearing bushing is likewise longer than the second region thereof. A method of producing such a small end is also disclosed.

Abstract: A connecting rod having a small end and a large end, the small end including a pin bore defined by a pin bore surface. A thermal spray coating applied to at least a portion of the pin bore surface and a method of applying the thermal spray coating to the pin bore surface using a thermal spray technique.

Abstract: The invention provides a coupling assembly for connecting two shafts. A first shaft includes an outward flange on one end thereof with a plurality of first holes extending through the outward flange around an axis of the first shaft. A second shaft is a hollow shaft including an inward flange on one end thereof with a plurality of second holes extending through the inward flange with same diameter of the first holes and aligning with the respective first holes. The coupling assembly includes: a coupling bolt with thread on a first end and a second end thereof, which is inserted in the first hole and the second hole. A first nut is engaged with the first end of the coupling bolt. A second nut engaged with the second end of the coupling bolt. An expansion sleeve is with its inner hole tapering from one end to another end thereof.

Abstract: A process for manufacturing connecting rods is provided which comprises the steps of compacting, sintering, and powder forging a powder metal comprising a carbon source and a prealloyed powder consisting essentially of iron and copper. The connecting rods made from this process have sufficient hardness and strength to be used in an engine and do not require any additional quenching or tempering.

Abstract: The invention relates to a method of manufacturing an assembly comprising a first structure (23), arranged to be rigidly connected to a housing of a turbojet engine, a second annular structure (21) surrounding the first structure, and a hyperstatic trellis of connecting rods (40a, 40b, 40c, 40d, 40e, 40f) maintaining the first structure (23) relative to the second (21), said method comprising a step of mounting said connecting rods of the hyperstatic trellis between said structures and being characterised in that it comprises a step for pre-stressing at least one of said connecting rods (40) to a pre-determined level, carried out before the mounting thereof between said structures. It also relates to a device which is suitable for mounting the pre-stressed connecting rods.

Abstract: Machine tool, comprising a workpiece carrier assembly (11) including a workpiece carrier (12), said workpiece carrier assembly (11) being supported on a workpiece carrier support (1) for horizontal movement in a first direction in parallel with a horizontal Z axis; a first tool carrier (21), supported on a tool carrier support (2) for horizontal movement in a second direction, said first tool carrier (21) being displaceable in said second direction between an operative position in which said first tool carrier (21) is facing said workpiece carrier assembly (11), and an inoperative position in which said first tool carrier (21) is not facing the workpiece carrier assembly (11). The invention also relates to a method of machining a connecting rod using the machine tool.

Abstract: A machine-plate manufacturing device 30 includes a cylinder section 32 having an outer circumferential portion. A groove into which an engagement portion of the sheet is removably inserted is formed in the outer circumferential portion of the cylinder section 32. On the inner side of the outer circumferential portion of the cylinder section 32, magnetic attraction members 51 formed of a magnetic material are provided, and permanent magnets 53 are provided in such a manner that their orientation can be switched. Permanent-magnet switching means is provided to switch the orientation of the permanent magnets 53 between a magnetization position for magnetizing the magnetic attraction members 51 and a demagnetization position for demagnetizing the magnetic attraction members 51.

Abstract: A method of forming a composite link fitting including joining two opposed bearing supports with an inner laminate core having a longitudinal axis extending there between. Each bearing support including a bearing bore formed as an aperture, a first stepped portion, a separate second stepped portion and a recess formed therein. The recess extending toward the bearing bore between an extent of the first and second stepped portions to a recess bottom. The inner laminate core including a central elongate layer, a first outer layer and a second outer layer, with the first and second outer layers disposed on opposed first and second sides of the central elongate layer. First and second ends of the central elongate layer disposed within respective recesses. Also, the method including wrapping an outer band around the two bearing supports and the inner laminate core to form the composite link fitting.

Abstract: A device and corresponding methods for applying a coating material are disclosed. The method may include applying a first coating material on a threaded region of an opening in a multi-piece assembly, and inserting at least one fastener to the threaded region. The fastener may include a mating thread selectively secured to the threaded region of the opening to create a first friction interface between the fastener and the multi-piece assembly. The method may further include tensioning the fastener between a load surface of the multi-piece assembly and the mating thread. In one example, the load surface may define in part a second friction interface between the fastener and the multi-piece assembly that is spaced away from the threaded region such that the first coating material does not influence the second friction interface. In another example, the first coating material may be applied in a substantially uniform thickness.

Abstract: A flexible connecting rod arrangement for engines, hermetic compressors, and any application that requires a connection between a piston and a crankcase or any application that requires a connection between a linear slider and a crankcase.

Abstract: A wrist pin and method of reducing wear between members thereof, a piston, a connecting rod, and methods of construction thereof are provided. The wrist pin has a first portion extending between opposite ends configured for receipt in piston pin bores and a second portion extending between opposite ends configured for receipt in the pin bores. The second portion is configured for relative movement with the first portion. The piston includes a piston body having axially aligned pin bores, wherein at least one of the pin bores has a feature to prevent relative rotation of a wrist pin member. The connecting rod includes a connecting rod body having small end bore. The small end bore has a contour to allow relative rotation of a first wrist pin member therein and a feature to prevent relative rotation of a second wrist pin member therein.

Abstract: Exemplary connecting rods and methods of making a connecting rod are disclosed. A method of making a connecting rod may include the step of providing a connecting rod blank, where the connecting rod blank includes a crankshaft end and a piston pin end. The method may further include forming a crankshaft pin recess in the crankshaft end of the connecting rod blank and a piston pin recess in the piston pin end, and forming at least one lubrication recess in the piston pin end of the connecting rod blank. The lubrication recess and the piston pin recess may both formed concurrently.

Abstract: The invention relates to a method of calibrating a connecting rod arrangement comprising a crankshaft eye and a connecting rod eye. In order to achieve the best possible parallelism between the connecting rod eye and the crankshaft eye a controlled energy input occurs in at least one predefined surface area of the connecting rod, so that outside a neutral axis a local structural change and thus a tension in the connecting rod occurs.

Abstract: A connecting rod constructed as an assembly of a plurality of parts comprising a shaft, a big end eye and a small end eye connected to one another by at least one interference fit, preferably a cylindrical interference fit, and a method of producing a connecting rod from a plurality of such parts connected to one another by at least one interference fit.

Abstract: A bearing bushing for a connecting rod and a combination of a connecting rod and a bearing bushing are provided. The connecting rod has a small end which includes a bearing bore. A first region of the bearing bore, which in operation is subjected to compressive loading, is longer than a second region of the bearing bore which is subjected to tensile loading. In order to modify a bearing bushing and a connecting rod so that with simple production and optimized weight the connecting rod has good bearing properties for the piston pin, the bearing bushing already has, before insertion thereof into the bearing bore, a shape adapted to the end edge contour of the bearing bore, wherein the first region of the bearing bushing is likewise longer than the second region thereof. A method of producing such a small end is also disclosed.

Abstract: A method of manufacturing a connecting rod assembly including the steps of defining a small end of a connecting rod assembly having a terminal end and then defining a pin bore extending through the small end of the connecting rod assembly. A pair of channels is formed on opposite sides of the small end of the connecting rod assembly wherein the axis of each of the channels is substantially perpendicular to the axis of the pin bore. A bushing having a contact surface including at least partially annular grooves disposed thereon is installed into the pin bore of the small end. The connecting rod is then machined to reduce the width of the small end between each channel and the terminal end wherein at least a portion of the grooves are disposed along the distal ends to reduce the need to deburr the area adjacent to the pin bore.

Abstract: An internal combustion engine may include a cylinder block defining a cylinder, and a crankshaft defining a crankpin, wherein the crankshaft is rotatably received by the cylinder block and rotates about a longitudinal axis. The internal combustion engine may further include a piston configured to reciprocate within the cylinder, and a connecting rod operably coupled to the piston and the crankpin. The connecting rod may include a first rod element having a first distal end and a first proximate end, wherein the first distal end is operably coupled to the piston. The connecting rod may further include a second rod element having a second distal end operably coupled to the first proximate end of the first rod element, and a second proximate end operably coupled to the crankpin, wherein the first rod element and the second rod element are pivotally coupled to one another.

Abstract: An internal combustion engine includes a piston, a crankshaft having a journal, and a connecting rod. The connecting rod includes a first end coupled to the piston and a second end coupled to the journal of the crankshaft. The second end of the connecting rod includes a bearing surface configured to interface with the journal, and further includes an open portion extending through the second end from the bearing surface to the exterior of the second end.

Abstract: Exemplary connecting rods and methods of making a connecting rod are disclosed. A method of making a connecting rod may include the step of providing a connecting rod blank, where the connecting rod blank includes a crankshaft end and a piston pin end. The method may further include forming a crankshaft pin recess in the crankshaft end of the connecting rod blank and a piston pin recess in the piston pin end, and forming at least one lubrication recess in the piston pin end of the connecting rod blank. The lubrication recess and the piston pin recess may both formed concurrently.

Abstract: A connecting rod having a small end and a large end, the small end including a pin bore defined by a pin bore surface. A thermal spray coating applied to at least a portion of the pin bore surface and a method of applying the thermal spray coating to the pin bore surface using a thermal spray technique.

Abstract: A method of manufacturing a bearing cap is disclosed using a fixture that has a mandrel that is received in the bearing bore and clamps that engage the outer surface of the bearing caps. A pair of bolt shoulders of the bearing caps are machined and a bolt hole is drilled in each of the bolt shoulder portions. The bearing bores are subsequently machined with the bearing caps being located based upon the location of the bolt holes to form a plurality of finished bearing caps. A holding fixture is disclosed for machining bearing caps that have a generally semi-cylindrical bearing bore on an interior surface and bolt shoulders on opposite sides that are drilled to receive bolts. The holding fixture comprises a fixture frame to which a mandrel is attached that receives the bearing caps with the bearing bore centered relative to the mandrel. A plurality of clamps engage an exterior portion of the bearing caps to retain the bearing caps on the mandrel.

Abstract: A cast metal connecting rod of the type used in a reciprocating piston engine has a beam section between two end sections. The beam section and the end sections are integral with one another and are at least partially made of a cast metal material. At least the beam section of the connecting rod includes an insert made of a sintered powder metal material. The insert is at least partially encapsulated by the cast metal material of the connecting rod. The insert reinforces the connecting rod and can help match characteristics of surrounding or mating parts of the engine that are made of materials more similar to the material of the insert than the cast metal of the connecting rod. The cast metal material, for example aluminum alloy, of the connecting rod can also provide localized regions of high machinability where needed.

Abstract: A process for forming a remateable machined titanium powder base alloy connecting rod using a titanium alloy powder having an average particle size of about 1-20 microns, a mean aspect ratio of about 5 to 300, and a specific surface area of at least about 25 m2/g.

Abstract: A universal offset connecting rod and method of manufacture of a universal offset connecting rod comprised of an offset connecting rod having an offset longitudinal axis, a first circular aperture used for pivotally attaching the offset connecting rod to a wrist pin, and a second circular aperture used to pivotally attach said offset connecting rod to a crankshaft, and a force transfer area creating an angle of offset which directs the line of action to a point away from the center of said second circular aperture. The force transfer area is a triangular area free from any solid material and defined by the normal line of action on one side and the offset connecting rod on the remaining two sides. The connecting rod is therefore discontinuous along the traditional line of action, resulting in a completely offset of transferred force.

Abstract: A connecting rod and methods for making the same are disclosed. A connecting rod may include a shaft extending between a piston pin end and a crankshaft pin end. The piston pin end generally defines a bore opening extending along an axis. The connecting rod further includes a bore surface formed integrally with the piston pin end and extending about an inner circumference of the bore opening. The bore surface may define a plurality of dimples that extend axially along the bore surface. The bore opening further may further include profiled surfaces adjacent opposing ends of the bore opening.

Abstract: The invention relates to a method for producing a bearing component (1), in particular a connecting rod (1), from a molded part (2), wherein the bearing component (1) includes at least one divided bearing seat (5) formed by a bearing base (3) and a bearing cover (4), and a bearing seat surface (7) coated with a bearing layer (6) of a bearing layer material is formed in the bearing seat (5) for supporting a shaft. In the method of the present invention the bearing cover (4) is separated from the molded part (2) along a separating surface (8). In accordance with the invention, a masking agent (M) is disposed perpendicularly with respect to a separating line (10) on the bearing seat surface (7) during a coating process for applying the bearing layer (6) in order to form a coating-free region, such that a recess (9) at a predetermined width (B) is produced in the bearing layer (6). The masking agent (M) is formed as an element which is separate from the bearing component (1) and is not connected thereto.

Abstract: A wrist pin and method of reducing wear between members thereof, a piston, a connecting rod, and methods of construction thereof are provided. The wrist pin has a first portion extending between opposite ends configured for receipt in piston pin bores and a second portion extending between opposite ends configured for receipt in the pin bores. The second portion is configured for relative movement with the first portion. The piston includes a piston body having axially aligned pin bores, wherein at least one of the pin bores has a feature to prevent relative rotation of a wrist pin member. The connecting rod includes a connecting rod body having small end bore. The small end bore has a contour to allow relative rotation of a first wrist pin member therein and a feature to prevent relative rotation of a second wrist pin member therein.

Abstract: A method to modify the geometry of a connecting rod of an internal combustion engine includes providing a connecting rod having a crankshaft bore at a first end, wherein the first end has a bearing cap and a bottom end portion of the connecting rod, mating the bearing cap with the bottom end portion of the connecting rod to form the crankshaft bore of the connecting rod, machining a width upset portion of the bottom end portion to reduce a width of the bottom end portion of the connecting rod, machining a width upset portion of the bearing cap to reduce a portion of a width of the bearing cap, and reducing the width of the bottom end portion of the connecting rod and the portion of the width of the bearing cap to a width smaller than a cylinder bore of the internal combustion engine.

Abstract: A connecting rod and methods for making the same are disclosed. A method of making a connecting rod may include joining a first connecting rod blank and a second connecting rod blank together. The first connecting rod blank includes a first material, while the second connecting rod blank includes a second material different from the first material. The first and second connecting rod blanks have an interface between the piston pin and crankshaft ends. The method further includes narrowing a cross-section of the blanks at the interface, forming a piston pin aperture in the first connecting rod blank, and forming a crankshaft pin aperture in the second connecting rod blank. At least one of the narrowing and forming steps works a perimeter of the interface, thereby forming a generally smooth connecting rod surface about the perimeter of the interface.

Abstract: A driveshaft assembly includes a tubular slip member having a first spline member having a plurality of splines formed thereon having a first tolerance and a second spline member having a plurality of spline sections. The plurality of spline sections includes a plurality of splines formed thereon having a second tolerance. The second spline member cooperates with the first spline member. A zone is disposed on the second spline member and has a first profile. The zone is disposed adjacent to at least one of the plurality of spline sections of the second spline member, and the first profile defines a clearance relative to the first spline member.

Abstract: A hollow structural connecting rod including a first end fitting, a second end fitting, and a hollow main portion situated between the first and second end fittings. First and second connecting rod elements are integrally joined to one another and have, respectively, a first hollow shank made in one piece together with the first end fitting and a second hollow shank made in one piece with the second end fitting, the first and second connecting rod elements being joined by a joint situated at mid-length on the connecting rod, and which can be produced via flow-turning. The connecting rod may find particular application to an assembly system to be interposed between an aircraft engine mounting structure and an engine.

Abstract: A connecting rod constructed as an assembly of a plurality of parts comprising a shaft, a big end eye and a small end eye connected to one another by at least one interference fit, preferably a cylindrical interference fit, and a method of producing a connecting rod from a plurality of such parts connected to one another by at least one interference fit.

Abstract: A method of manufacturing a connecting rod assembly including the steps of defining a small end of a connecting rod assembly having a terminal end and then defining a pin bore extending through the small end of the connecting rod assembly. A pair of channels is formed on opposite sides of the small end of the connecting rod assembly wherein the axis of each of the channels is substantially perpendicular to the axis of the pin bore. At least partially annular grooves are formed within the pin bore adjacent the distal end of the pin bore. The connecting rod assembly is then machined to reduce the width of the small end between each channel and the terminal end to provide a small end having a reduced width configuration wherein the grooves are disposed along at least a portion of the distal end to reduce the need to deburr the area adjacent the pin bore.

Abstract: A method for manufacturing a connecting rod for an engine contemplates creating a rough connecting rod from high carbon steel. The rough connecting rod is normalized to provide strength and toughness characteristics to the core of the connecting rod for functional operation. A first, second or both ends of the connecting rod are selectively induction hardened to create a durable martensitic structure in those ends. The connecting rod is then cracked and ground to form a final connecting rod for use in internal combustion engines.

Abstract: A fracture splitting jig is fitted into a crank pin hole of a connecting rod, and a fracture load is applied in a longitudinal direction of the connecting rod via the fracture splitting jig to thereby fracture a big end of the connecting rod. A mandrel as the fracture splitting jig is divided into four parts to be separable from each other in a longitudinal direction of the connecting rod and in a direction orthogonal to the longitudinal direction. When the big end is fractured, a fractured portion thereof is allowed to come in contact with a predetermined portion of the fracture splitting jig.

Abstract: A method and a device for removing the chips of a connecting rod. The large end part of the connecting rod is placed on the step part of a pedestal, and the small end part thereof is placed on a pedestal formed of a vibration damping material. An air vibrator is energized to continuously supply compressed air to vibrate the large end part together with the pedestal until the vibrated large end part is brought into contact with a contact plate member. When chips fall from the rod body and the cap part of the connecting rod, the chips are collected to a transparent collection bag through a suction hose by a dust collector. The operations above are performed in a sound isolation box closed by a cover member. Then, the chips are separated from the broken-out sections of the rod body and the cap part by using, for example, a brush.

Abstract: A connecting rod and methods for making the same are disclosed. A connecting rod may include a shaft extending between a piston pin end and a crankshaft pin end. The piston pin end generally defines a bore opening extending along an axis. The connecting rod further includes a bore surface formed integrally with the piston pin end and extending about an inner circumference of the bore opening. The bore surface may define a plurality of dimples that extend axially along the bore surface. The bore opening further may further include profiled surfaces adjacent opposing ends of the bore opening.

Abstract: Bearing shell of a connecting rod which is located in the larger connecting rod eye in which the bearing shell is constituted by several thermally sprayed layers and the topmost material layer of the bearing shell is essentially constituted by an aluminum/bismuth alloy as well as a bearing shell of a connecting rod which is at least located in the larger connecting rod eye in which the entire bearing shell is essentially constituted by a thermally sprayed layer of aluminum/bismuth alloy and process for the fabrication of a bearing shell on a connecting rod eye with the steps mechanical roughening of the connecting rod surface in the region of the bearing, thermal coating onto the surface with a bearing metal or a bearing material to build up a bearing layer and thermal coating onto the bearing layer with an Al/Bi alloy to build up a sliding layer, as well as a process for the fabrication of a bearing shell on a connecting rod eye with the steps mechanical roughening of the connecting rod surface in the region

Abstract: A method of manufacturing a connecting rod includes providing a substantially cylindrical rough bore in one end of the connecting rod, applying one of a compressive load and a tensile load to the connecting rod to at least partially deform the rough bore to a non-cylindrical shape, and machining the deformed rough bore to a substantially cylindrical shape while the one of the compressive load and the tensile load is applied to the connecting rod.

Abstract: A connecting rod and methods of making a rod are disclosed. A method of making a connecting rod may include the step of providing a connecting rod blank, where the connecting rod blank includes a crankshaft end and a piston pin end. The method may further include forming a crankshaft pin recess in the crankshaft end of the connecting rod blank and a piston pin recess in the piston pin end, and forming at least one lubrication recess in the piston pin end of the connecting rod blank. The lubrication recess and the piston pin recess may both formed concurrently.