Abstract: Disclosed herein is a method including the steps of cutting a wafer to prepare a row block having a plurality of head elements arranged in a matrix, bonding a plate member to one side surface of the row block, bonding a row tool to another side surface of the row block bonded to the plate member opposite to the one side surface, and cutting the row block to prepare a row bar bonded to the row tool and having a row of the head elements. A bonding apparatus for realizing the above bonding steps is also disclosed.

Abstract: The invention relates to a wood-gluing system enabling the continuous production of glued pieces of lumber for panels and the like. The system includes a deck, a horizontal displacement system for advancing lumber across the deck, a braking system, a one-way clamping system and an upstream pressure system. The system may be used in conjunction with finger-jointing processes or with single pieces of lumber and may be used for the production of both furniture grade and construction grade wood products to NLGA and NGRC standards.

Abstract: To promote miniaturization of an electronic-component mounted device, in which a larger number of electronic components are mounted on a mounting base, while increasing a number of electronic components mounted on the mounting base, disclosed is a double-side mounting apparatus including: a first compression-bonding tool and a second compression-bonding tool arranged opposite to each other; heating means for heating the first and second compression-bonding tools; pressurizing means for applying a pressure load between the first and second compression-bonding tools; a workpiece retention mechanism for retaining a mounted workpiece in between the first and second compression-bonding tools; a first protective-tape supply mechanism for supplying a first protective tape, in between the first and second compression-bonding tools, to the first compression-bonding tool; and a second protective-tape supply mechanism for supplying a second protective tape, in between the first and second compression-bonding tools, to t

Abstract: A device for placing a ply on a substrate surface includes a vacuum manifold assembly configured for attachment to a vacuum source and a substrate seal configured to provide a substantially gas impermeable interface with the substrate surface. This device further includes a ply seal configured to provide a substantially gas impermeable interface with the ply. In this manner, vacuum applied to the vacuum manifold assembly depressurizes an area between the ply and the substrate surface.

Abstract: A pallet labeler station for applying a printed label to a loaded pallet at a predetermined label position includes a label printer for printing a label to be affixed to the loaded pallet, a rotatable label applicator mechanism for applying the printed label to the loaded pallet at the predetermined label position and a drive mechanism for moving the label applicator mechanism so as to apply the printed label to the loaded pallet at the predetermined label position. The label applicator mechanism is capable of applying printed labels to two sides of a loaded pallet with each label being applied at a predetermined label position defined for each of the two sides of the loaded pallet.

Abstract: An apparatus is provided for joining together substrates, which have an inner hole, to form a substrate disk. An expandable element is introducible into the inner hole of at least two superimposed substrates. The element is expandable to such an extent that it can come into contact with the inner holes of both of the substrates to close off an intermediate space formed between the substrates relative to the environment. A substrate support is rotatable about an axis of rotation perpendicular to a support surface thereof. A centering device is rotatably coupled with the substrate support and is movable relative thereto in the direction of the axis of rotation. The expandable element is disposed, and is compressible, between the substrate support and the centering device.

Abstract: A die attachment includes a placement head, a platen, and a vibration mechanism to vibrate at least a selected one of the placement head and platen while a die and a substrate mounted on the placement head and the platen, respectively, are in contact.

Abstract: The invention provides a non-autoclave method and apparatus for producing laminated glass. The method and apparatus provide a non-autoclave laminated glass process that is continuous and thus eliminates the batch processing of known autoclave processes. In addition, the method and equipment do not require vacuum processes, involving complicated vacuum bags, vacuum rings, or the like.

Abstract: An apparatus for transferring at least one label portion from a label assembly onto an object includes a base and a wall connected to the base. The wall forms opposing guides, which correspond to at least a portion of a periphery of the label assembly, and a stop wall. The opposing guides and the stop wall define an application area on a surface of the base. A first stripping member is connected with respect to a first end portion of the application area and suspended over at least a portion of the application area and a second stripping member is connected with respect to a second end portion of the application area and suspended over at least a portion of the application area. The label assembly is positionable on the base surface so that at least one label portion is positioned between the first stripping member and the second stripping member.

Abstract: Vibratory welded connections are formed between first and second members (32, 33) of thermoplastic material by interposing a junction piece (47) of similar material and vibrating the junction piece (47) at high speed while pressing the first second members (32,33) in a controlled manner against opposite sides of the junction piece (47). Friction created by the vibration generates heat which melts a small amount of material at the engaging surfaces which upon cooling provides a strong welded joint having minimal flash. Entire frame systems such as window-frames can be fabricated by an apparatus system (120) which forms a friction welded joint between adjacent ends of the frame members (134, 135, 136, 137). Furthermore the frame can be fabricated around a panel such as a glazing panel. The welded connections formed by the system do not mar the finish of the frame members and produce no unsightly flash bead requiring subsequent machining steps for its removal.

Abstract: The invention provides a non-autoclave method and apparatus for producing laminated glass. The method and apparatus provide a non-autoclave laminated glass process that is continuous and thus eliminates the batch processing of known autoclave processes. In addition, the method and equipment do not require vacuum processes, involving complicated vacuum bags, vacuum rings, or the like.

Abstract: A mounting device and a method thereof for preventing a pellet from cracking or chipping when the pellet is mounted. A mounting device comprises a first head for mounting a second pellet on a first pellet already mounted and temporarily pressure-bonding the second pellet thereto by applying a first load and a second head for pressure-bonding the second pellet, which has been temporarily pressure-bonded by the first head, to the first pellet by applying a second load higher than the first load. The second head includes a protective sheet which is moved so that the unused portion is set with respect to each pellet, a ball which is supported rollably in arbitrary directions and in contact with the second pellet through the protective sheet, a spring for applying an elastic force in the direction of the protective sheet and applying the second load to the second pellet through the protective sheet, and a drive for rolling the ball on the protective sheet in contact with the second pellet.

Abstract: An apparatus and a method for moving frameworks such as window frames or sashes from a plastic frame welding machine to a work station for further processing of the frameworks are disclosed. Two tracks are mounted at an elevated position so they extend horizontally from the welding machine to the workstation and an arm assembly is mounted for movement along each track. Preferably each arm assembly has gripping devices arranged one above the other each capable of releasably engaging and gripping one of the frameworks. An actuator is provided to move each arm assembly along its track from a position where the arm assembly can engage the frameworks when they are in the welding machine and then move them to a position where the grippers can grip the frameworks at the workstation.

Abstract: A method and system for manufacturing a consolidated cellulosic article having first and second surfaces of a desired contour, a uniform density and variable caliper and basis weight are disclosed. The method and system employ a primary press having first and second similarly contoured platens to consolidate a mat of cellulosic material and a binding agent to a softboard having first level of density with first and second opposed sides of similar contour. A removal tool is then employed to remove cellulosic material from one or both of the first and second sides in a planar fashion. The resulting mat is then compressed a second time by a secondary press having first and second platens corresponding in shape to a higher density level while maintaining a substantially uniform caliper and basis weight.

Abstract: A machine includes a lower and an upper molds to support and to move two pad members toward and away from each other. A heating device includes two heating members for heating the pad members, and a sending device may send the heating members toward and away from the pad members to locate the heating members between the pad members and to allow the pad members to be heated by the heating members, and to disengage the heating members away from the pad members after the pad members have been heated by the heating members. Each of the pad members includes one or more hollow chambers for cushioning purposes.

Abstract: A platen (50) for a molding machine includes an intermediate support structure (20) between two planar walls (16, 18) having ribs (40) arranged at a non-normal angle ? to a first wall (18). The ribs (40) couple forces from the first wall (18) to the second wall (16) in such a way that bending of the second wall (16) is resisted. This adds to the rigidity of the second wall (16) and hence the platen (50), adding to flatness of the arrangement. Gussets (42) may be provided extending between the ribs (40) and the intermediate support structure (20). This has the effect of surrounding and supporting an injection bore (14) and further adding to the coupling of forces to the edge portions of the second wall (16) to resist forces acting to bend the wall.

Abstract: An improved structure portable strapping machine in which a band is articulated via a strap pulling device, a swinging device, and a cutting device and then bound tight by a friction welding means to facilitate strapping objects of various shapes and dimensions that are difficult to ship. As such, utilization of the improved structure portable strapping machine of the present invention is easy, convenient, rapid, reliable, and safe.

Abstract: An integration device for a compact disk has a reversing element and an elevator. The reversing element has a first engine, an arm and a first seat, whereby the arm is rotated reversely in turn. The elevator has a second seat, a base, a second suction disk and a second engine. A shaft mounted in a center of the second suction disk and inserted into the hole, whereby the second suction disk is driven to rotate or lift. Hence, the first base is raised exactly facing the second base so that the first base can be directly adjacent to the second base face to face thereby avoiding generating bubbles to enable glue to distribute evenly and result in the compact disk with an even thickness.

Abstract: An apparatus and a method for vacuum laminating an article to a substrate. The apparatus comprises a movable assembly engaged with a support surface for the substrate and movable relative thereto. The movable assembly comprises a manifold for receiving vacuum force from a source of vacuum, and a fin member for translating the vacuum force across substantially a width of the printing plate. A holder for the article is positioned such that an end of said article to be laminated is engageable with the support surface. A moving device is provided for passing the movable assembly and the article over the printing plate as the vacuum force is translated across the printing plate, such that the article is laminated to the printing plate without substantial air entrapment.

Abstract: A blister packaging machine for packaging product includes a frame, a heater that is supported by the frame and movable with respect to the frame, a hydraulic clamp connected to the heater, an insulator is provided to adequately thermally insulate the hydraulic clamp from the heater, and a heat sealing member for contacting a heat sealable item during use. The heat sealing member is adapted to be connected to the heater by way of the hydraulic clamp. The heater and the heat sealing member are adapted to move so that the heat sealing member contacts the heat sealable item.

Abstract: In order to be able to realize complicated jaw movements in a device for welding of a foil tube, comprising two welding jaws, which can be moved opposingly and clamp the foil tube between one another, whereby a linear motor is provided as the jaw drive, it is suggested that the gearing houses a cam plate connected to a movable part of the linear drive, that the cam plate has two separate curves, and that each one cam connected to a jaw carrier is guided along a curve.

Abstract: Prior to the start of transfer of an insulation film to a substrate, the degree of opening of a butterfly valve is set small so that evaporation of a solvent component contained in the insulation film is suppressed and the fluidity of the insulation film is ensured at the start of the transfer. On the other hand, the butterfly valve is totally opened at the start of the transfer, so that the pressure inside a thin film forming chamber rapidly decreases and transfer of the insulation film to the substrate is performed always in a low-pressure state (high-degree of vacuum).

Abstract: In order to realize in a device for welding of a foil tube, comprising two welding jaws, which can be moved against one another and clamp the foil tube between one another, a simple gearing, it is suggested that two rods are provided in the gearing, that each rod is connected on the one side through a joint provided on a movable part of a linear drive to the part movable transversely with respect to the direction of movement of the welding jaws, and that each rod is connected on the other side to a joint of a jaw carrier.

Abstract: In order to achieve, in a device for welding of a foil tube comprising two welding jaws, which can be moved against one another and clamp the foil tube between one another, a relatively low building height of the device and a high welding force, it is suggested that a gearing has four rods, of which two inner rods are pivotally fastened through a stationary joint, and two outer rods are each connected through one joint to an inner rod and a further joint to a jaw carrier, and that a movable part of a linear drive is connected to the inner rods through a connecting member in order to pivot the inner rods and thus the jaw carriers away from one another or toward one another during a movement of the movable part along its active line.

Abstract: An apparatus for automated fabric lay-up of composite laminates 10 is provided, including an automatic dispensing assembly 12 dispensing pre-preg fabric 14 in a dispensing direction 30. The apparatus 10 further includes a roller element 38 having a contact surface 40 in communication with the pre-preg fabric 14. The roller element 38 rotates such that the contact surface 40 induces lateral tension in the pre-preg fabric 14 over which it rolls such that wrinkles are removed.

Abstract: A detection apparatus for detecting a feature portion of a composite member having a structure in which a first member having a separation layer inside is brought into tight contact with a second member. The composite member has, as the feature portion, a portion at which a peripheral edge of the first member projects outside a peripheral edge of the second member. The apparatus includes a shift detection section which detects a shift between the peripheral edge of the first member and the peripheral edge of the second member along an outer periphery of the composite member and a determination section which determines the feature portion on the basis of a detection result by the shift detection section.

Abstract: An improved method of and apparatus that is continuously automatically operative in an in-line system is described for applying under vacuum, heat and mechanical pressure a dry film photoresist-forming layer to printed circuit boards (200) that already have been prelaminated by the loose application thereto of the dry film resist as discrete cut sheets within the confines of the surface of the boards whereby a laminate without entrapped air bubbles and closely conforming to the raised circuit traces and irregular surface contours of the printed circuit board is obtained. Featured is a conveyorized vacuum applicator (12) comprising two independent vacuum lamination chambers (18,20) in end-to-end relation. The first vacuum chamber operates at ambient temperature to draw off all of the air entrapped between the dry film resist and the surface of the printed circuit board at conditions that do not result in premature tacking of the dry film to the surface of the board.

Abstract: The invention relates to a device for vacuum-pressing of disk-shaped substrates, in particular DVD substrates into a finished DVD, wherein the device has a vacuum chamber with two substrate holders and an intermediate element that can be displaced inside the vacuum chamber; and wherein the intermediate element divides the vacuum chamber into a first low-pressure chamber and a second chamber that can be alternatingly connected to vacuum or to an overpressure, which makes the device particularly suited for use with a hot-melt thermoplastic adhesive.

Abstract: A lock-out assembly for a strapping tool prevents inadvertent actuation of the tool sealer cycle prior to completion of the tensioning cycle. The tool includes a pneumatic module having tensioning cycle and sealer cycle valves mounted therein. The valves are actuated by overlying levers. The lock-out assembly includes an arm operably mounted to the pneumatic module having a first engaging portion for engaging the tensioning valve lever and a second blocking portion for blocking the sealer valve lever.

Abstract: The device according to the invention for tensioning and sealing of strapping bands has a band abutment (24) for the inner band edges (27) of the band ends (20, 21) to be welded together, which is provided with a band width adjustment device (28) according to the invention, with the help of which the band abutment adjusts the band abutment transversely to the longitudinal direction of the strapping band in the housing and that the device can be adjusted to strapping having with different widths without any reconstruction measures (see FIG. 3).

Abstract: A laminating device 10 includes a vacuum grid 19 for holding a glass substrate 12, a curved pad 20, facing the glass substrate 12, for holding a laminated element 16 of a wafer 13 and an adhesive tape 15, and a driving element 22 for moving the curved pad 20 toward the vacuum grid 19. The curved pad 20 has a curved surface region 46 so that the distance to a smooth surface region 39 of the vacuum grid 19 is gradually increased from the center C toward the outside. By the driving element 22, the vacuum grid 19 and the curved pad 20 become close to each other in a substantially vacuum chamber. As a result, the glass substrate 12 and the laminated element 16 are gradually laminated to each other while removing a very small amount of air that may be present therebetween to the outside.

Abstract: A laminating machine includes two side frames and two rolls rotatably mounted between the side frames. One of the rolls has a first gear securely mounted thereon, and the other roll has a second gear securely mounted thereon. A movable plate is pivoted to one of the side frames. A unidirectional motor is mounted to a side of the movable plate and has an output shaft on which a clutch gear is securely mounted. The clutch gear is optionally meshed with one of the first gear and the second gear upon pivotal movement of the movable plate between a first position and a second position, allowing the object to be laminated to be moved forward or rearward depending on the need of the user.

Abstract: A bonding machine for lamellar pieces of wood to be joined to a board has at least one clamping and pressing device and at least one drive. The clamping and pressing device has at least two pressing members which are configured to be loaded independently of one another against the board by a pressure force. The pressing members extend parallel to the pieces of wood and transversely to a feeding direction of the board. The drive has piston-cylinder units configured to adjust the pressing members.

Abstract: An apparatus for transferring a label portion from a label assembly onto an object includes a base and an application area defined on a surface of the base. An elevated support is connected with respect to the base surface and forms a chute. The chute is elevated over the application area. The label assembly is slidably positionable on the base surface to position the label portion within the application area and align the label portion with the object retained in the chute.

Abstract: A member for being joined to a mating member is provided. The member includes a number of drive sections that are engagable by a driver having corresponding driver sections. The rotation of the driver causes the member to be joined to the mating member. Each drive section can include a drive face body, a flat and a ramp. Each of them has an angular extent for desired contact with and engagement by the driver sections. The drive sections are integral with a drive support of the member. The drive sections can be located at a border section of the drive support. In one embodiment, the drive of the member is comprised of an inner drive and an outer drive. In another embodiment, the member is hollow. Different sized members can be joined to different mating members using the same driver. The drive is configured, particularly the ramp thereof, to substantially reduce unwanted removal of the member from the mating member.

Abstract: Devices and methods for inflating and sealing packaging pillows from a material web are shown for consistently producing high-quality packaging pillows. A web of material is advanced past an inflation nozzle, inflated with gas, and sealed closed by a sealing element. The temperature of the sealing element is monitored using a thermocouple connection and automatically adjusted using a closed-loop system. A sealing clamp parallel to the sealing element maintains two sheets of the web in contact through the sealing step. The inflation nozzle is provided with two inflation outlets: a first outlet inserting gas longitudinally into the web of material, and a second outlet inserting gas laterally into the material. Gas input is controlled with the use of relief valves to maintain pillow quality at all stages of production.

Abstract: Apparatus for permitting the laser transfer of organic material from a donor onto a substrate to form a layer of organic material on one or more OLED devices, wherein the donor includes a laser light-absorbing layer, and a layer with heat transferable organic material.

Abstract: An apparatus having several stations that receive, apply adhesive to, crowd, press and cure the wood pieces into a continuous wood panel. A singulation station engages an individual one of the wood pieces oriented in a cross-machine direction from an infeed station, presents the wood piece to an adhesive station for adhesive application and releases the wood piece for crowding at a crowding station into a batch of the wood pieces. A press station downwardly presses the batch with an upper platen and presses the batch in a downstream direction onto the continuous wood panel with a clamping device. A radio frequency device applies radio waves to cure the adhesive between the wood pieces of the batch so as to adhere the wood pieces together and so as to adhere the batch to the continuous wood panel. A cutting station cuts individual wood panels from the continuous wood panel.

Abstract: With a thin film bearing surface of a substrate directed toward an insulation film which is formed on a surface of a quartz plate, the substrate and the quartz plate are moved closer to each other and the insulation film is tightly adhered to the thin film bearing surface (adhering process). The quartz plate alone is then selectively peeled off, thereby completing transfer of the insulation film onto the substrate (peeling process). In this manner, the insulation film is disposed on the thin film bearing surface of the substrate, and a transportation mechanism then houses the substrate in a substrate cassette. Meanwhile, after the quartz plate is transported by the transportation mechanism to a cleaning unit and cleaned by the cleaning unit (cleaning process), the quartz plate is returned to a plate-like member cassette and waits in this cassette until reused next time.

Abstract: An IC-card manufacturing apparatus manufactures an IC card from a laminated substrate including an electronic component and laminate materials which sandwich the electronic component. The IC-card manufacturing apparatus includes a laminated-substrate sandwiching unit which includes upper and lower sandwiching sections for sandwiching the laminated substrate in a sealed state; an evacuation unit for evacuating air from the interior of the laminated substrate; and an evacuation mechanism section which sandwiches the laminated-substrate sandwiching unit in order to form an upper evacuation chamber above the upper sandwiching section and a lower evacuation chamber below the lower sandwiching section and which evacuates air from the upper and lower evacuation chambers by use of the evacuation unit.

Abstract: Photon welding devices of this invention comprise a non-coherent photon source, and a light pipe coupled to the photon source at one end. A thin mask is positioned at another end of the light pipe that defines a weld location for photon delivery. A work piece to be bonded by the device comprises a top layer of transparent plastic and a base layer of absorbing plastic. The thin mask is in the form of a reflective coating positioned on the end of the light pipe over all surfaces that are not in contact with the work piece. A device includes a member that imposes a controlled, compressive force to the work piece while it is being welded and during a short time thereafter. The device also includes a member that maintains a desired alignment of the light pipe, top layer of the work piece, and base layer of the work piece during the bonding cycle.

Abstract: A method and an apparatus for automatically feeding slider-zipper assemblies to a station where the slider-zipper assemblies can be attached to bag material, such as thermoplastic film. The apparatus includes a slider guide having a channel running the length thereof. The channel has a cross section that allows passage therethrough of sliders slidably mounted to a tape of connected slider-zipper assemblies. A tape drive mechanism is located at the outlet of the slider guide. The tape drive mechanism includes a pair of rollers that form a nip therebetween. The zipper flanges of the tape are threaded through the nip. The rollers have respective grooves that form a space for passage of the sliders as the tape is advanced by the rollers. The zipper tape with sliders exits the tape drive mechanism and is drawn into a zipper flange sealing position by a tape transfer assembly comprising a bank of drive rollers having silicone surfaces in contact with the zipper tape.

Abstract: A fixture having a bottom plate, top plate and an expansion block interposed between the bottom plate and top plate. A workpiece is positioned between the expansion block and bottom plate. When the fixture is heated, there is a net displacement exerted by the expansion block so as to apply pressure to the workpiece. The pressure applied by the fixture to the workpiece is due solely to the thermal expansion of the fixture when it is heated.

Abstract: The present invention falls into the category of devices designed to print decoration onto objects in general and in particular onto containers. A non-stick film (1), onto which is deposited an image (5) produced using solid thermoplastic colours, moves between a pressing element (4) and an object (6). The action of a heat generator (7) causes the colour to change from a powdery state to a semi-liquid plastic state.

Abstract: A machine for the manufacture of inflated plastic dunnage and other fluid filled units is disclosed. In a disclosed and pictured dunnage embodiment, the machine includes a hollow shaft rotatably mounted on a frame. In the preferred embodiment the shaft is solid. With either embodiment a drive is operably connected to the shaft for causing the shaft to rotate about its axis and a drum mounted on the shaft to rotate with the shaft. The drum is in the form of a pair of closely spaced discs having perimetral, cylindrically contoured sealing surfaces for support and, in cooperation with driven metal belts, transport of a web being formed into dunnage units. Sets of heating and cooling shoes having spaced arcuate surfaces are complementally positioned adjacent the drum surfaces with the cooling shoes downstream from the heating shoes in the direction of dunnage formation rotation. A nozzle is mounted generally tangentially of the drum at a location midway between the discs.

Abstract: A method and system of manufacturing an air bag cover assembly utilizing infrared radiation is disclosed. The assembly includes a front panel, a back plate, a switch and infrared-absorbing material. Initially, the front panel and the back plate are positioned so that inner surfaces of the front panel and the back plate define a switch pocket therebetween. Then the switch is positioned in the switch pocket. Thereafter, infrared radiation is directed at the infrared-absorbing material for a time sufficient to heat the infrared-absorbing material to a desired temperature. The amount of heat applied to the infrared-absorbing material by the infrared radiation is controlled by a controller. Finally, the heated material cools to fixedly secures the back plate to the front panel. The heated material may be forced to flow prior to cooling.

Abstract: A welding apparatus for plastic work pieces has two welding tables arranged next to one another. A propulsion device displaces the welding tables. The propulsion device has a drive motor and a propulsion rod assembly. The propulsion rod assembly has spatially separated double arm levers with two lever arms in each case. The two lever arms are each mounted in a rotatable manner on an axis of rotation and are in a mechanical state of rotary connection with one another. One set of lever arms is kinematically connected to one welding table and the other lever arms are kinematically connected to the other welding table. During rotary movement of the double arm levers, the welding tables are moved toward one another in one direction of rotation, and away from one another in the other direction of rotation.

Abstract: A sealing assembly (10) for sealing flexible packaging materials comprising: a sealing mechanism for sealing the packaging material; and a spreading mechanism for spreading the packaging material to be sealed prior to sealing, the spreading mechanism including at least two pair of opposed spreading members (15a, 15b), each pair having opposing converging contact edges (17a, 17b) which engage either side of the packaging material during spreading; wherein the spreading members are mounted for relative movement between a first open orientation and a second closed orientation such that, as the spreading members travel from said first to said second orientation, the contact edges initially contact the packaging material at convergent ends of the contact edges and then proceed to contact the packaging material along the length of the contact edges to divergent ends thereof, and wherein subsequently or simultaneously the spreading members engage the packaging material between the contact edges and travel transverse

Abstract: This invention relates to the fabrication of veneer faced panels (10), in particular veneer faced panels (10) for mounting in the passenger compartment of a motor vehicle. A blank (14) is shaped and trimmed by placing it in a first press (20) having a tool with a flat peripheral pressing surface (30) and then placed in a second press (40) also having a flat peripheral pressing surface (31) following which a layer of veneer (16) is placed over the blank (14) before being pressed against the blank (14), so that a veneered panel (10) is formed with flat and parallel end face (18).

Abstract: A method of friction welding first and second parts together at an angular orientation relative to each other includes the steps of mounting the first part in a spindle for axial rotation and the second part in a non-rotatable holder. The spindle is then rotated and the angular orientation of the first part relative to the second part is determined at any specific time. The holder is moved toward the spindle to bring the second part into frictional contact with the first part at a selected one of the specific times that the angular orientation is determined. Accordingly, due to frictional contact, the respective contacting surface of the parts are melted. The speed of the rotation of the spindle is then decreased and the holder is moved toward the spindle to forcibly urge the first and second parts together at the contacting surface.