Abstract: A device has a rectangular box, a roller driving unit and a controller are arranged to a side surface of the rectangular box, a grease removal unit is arranged to an inner surface of the rectangular box. The bolt grease removal device drives a conveyor belt to rotate through an electric motor, swing levers of clamping components play a role in fixing bolts, rotation of the conveyor belt drives bolts to make a circular motion to move bolts to a position of a cleaning brush to achieve an effect of removing grease on outer surface of bolt. Different rollers drive different cleaning brushes to rotate, use different sizes of driven wheels to make cleaning brushes have a certain relative speed to achieve an effect of rotating bolts and to increase the contact surface.

Abstract: A cleaning apparatus for cleaning solder paste off the bottom side of a printed circuit board stencil includes a container of cleaning solution therein and a blade holder that is movable between a wiping position and the container of cleaning solution. A wiping blade is mounted in the blade holder. The blade holder, with the blade mounted thereon, is reciprocated back and forth when in communication with a stencil to be cleaned. The blade is moved from the wiping position in communication with the stencil into the cleaning solution in the container. A pneumatic piston and rotary actuator provides controlled movement of the wiping blade. The wiping blade may be vibrated during wiping to improve removal of solder paste from the stencil and the cleaning solution may be ultrasonically vibrated to improve removal of solder paste from the wiping blade. The wiping blade may also be pulsed into a sponge to remove excess cleaning solution prior to the next cleaning cycle.

Abstract: A circuit board manufacturing system has a paste source, a circuit board processing apparatus, and a controller. The circuit board processing apparatus includes a carrier configured to receive a circuit board having (i) a section of circuit board material and (ii) virgin metallic surface mount pads supported by the section of circuit board material. The circuit board processing apparatus further includes a paste distribution assembly coupled to the carrier and to the paste source. The paste distribution assembly is configured to dispose a paste from the paste source onto a surface of the circuit board. The carrier further includes a surfacing assembly coupled to the carrier. The surfacing assembly is configured to move the paste over the surface of the circuit board to remove a portion of each virgin metallic surface mount pad. The controller is configured to selectively start and stop operations of the paste distribution and surfacing assemblies.

Abstract: The disclosure is a plural process to perform a solder ball attaching process that corresponds to the final of a ball grid array package manufacturing process. For example, flux and solder balls are exactly attached on solder ball pads of base frames on which base tapes having a number of land pattern groups are adhered. In the above state, the base frames are inserted into an adjacent reflow device to make the solder balls be attached on the solder ball pads. After the flux of the solder ball pad, on which the solder ball is attached, is removed, the base frames are stored in containers. To perform the base frame storing process in a very small space, the transfer course of the base frames is in the form of loop.

Abstract: A friction welder drill and fuse fitting apparatus. This invention relates generally to a friction welder fitting apparatus and method for combining the operation of drilling a hole into a substrate workpiece and fusing a friction welding fitting onto that substrate in one set-up operation. The friction welding fitting (stud, shaft or other type fitting) to be friction welded to a workpiece, of either similar or dissimilar materials, or two circular shafts, can be friction welded together by use of a friction welder fitting apparatus that can first drill a hole and then weld a fitting in place, in line with that hole. The friction welder drill and fuse fitting apparatus includes the following integrally coupled components: a friction welding fitting, a drilling mechanism, an engagement mechanism, and an attachment means.

Abstract: A method of non-releasably quick-connecting a tubular metal conduit to the inlet of a non-metallic valve body. A closure having a tube-receiving bore is then pre-assembled with a frictionally engaging spring washer and seal rings therein and is then secured to the valve inlet preferably by non-metallic weldment. The tubular conduit is then inserted into the bore and radially compresses the seal rings and is frictionally engages the spring washer to prevent subsequent removal of the conduit.

Abstract: A method and apparatus is disclosed for ultrasonically welding at their edges a strip of their copper foil to a second strip of supporting metal, preferably aluminum or stainless steel having a thickness greater than the copper foil. The welded strips are subsequently sheared into panels for use in making printed circuit boards.

Abstract: An apparatus for injecting sealant into the packing chamber of a valve requiring no venting of pressure within the valve. The apparatus which includes an interior valve is attached to the valve body by drilling and tapping a connection or by friction welding. A high pressure packing gland is attached to the apparatus and a drill bit is passed through the combination to complete an opening into the packing chamber. The drill bit is withdrawn past the interior valve, which is closed and then out of the combination. The packing gland is removed and a sealant injection device attached. The interior valve is opened and sealant injected into the packing chamber. The valve is closed, a completion plug installed into the end of the fitting, and a completion cap with a sealing ring is installed over the entire valve and fitting, thereby forming multiple redundant seals.

Abstract: A spin-welding apparatus utilizing a servo motor assembly has a closed-loop control circuit for rotating one part of the workpiece being welded relative to the other. In use, the servo motor immediately rotates the first part up to a set speed at which welding will occur, and a power cylinder moves the first part into frictional contact with the second part. Contact between the two parts is observed by a microprocessor interrogating a signal from the servo output corresponding to an increase in the load on the servo motor due to frictional drag between the parts, with "contact" being identified as surpassing a predetermined threshold error or variance value between the closed-loop system's input and output values. The microprocessor then counts a predetermined number of revolutions, and terminates rotation of the servo motor and first part.

Abstract: A friction welding fusion enhancer apparatus. This invention relates generally to an apparatus and method for increasing the fusion area of a rotatable workpiece (stud, shaft or other) to be friction welded to a substrate of either similar or dissimilar materials or two circular shafts that are to be friction welded together by use of an apparatus that can be removable from the stud, shaft or other weldable devices after the stud is friction welded to the substrate, while limiting the build-up of plastisized matter around the peripheral edge of the rotatable workpiece. It is envisioned the invention disclosed herein could be adaptable to a wide range of friction welding apparatuses since the apparatus disclosed herein could be adapted to most friction welder rotatable workpieces. The friction welding fusion enhancer apparatus includes the following integrally coupled components: reaction surface area, peripheral edge, engagement means and rotatable workpiece.

Abstract: A joint between two hollow pipes is formed by inserting the pipes into a sleeve. The sleeve is made of a similar or compatible material to that of the pipes which are to be joined. The inner diameter of the sleeve increases from a middle portion outwardly to two end portions. The sleeve includes a pair of tapered collars which engage each end portion and abut the middle portion. Relative rotation of the pipes and sleeve causes melting and mixing of the pipe and sleeve surfaces. This mixing action eliminates the weld line present in known systems.

Abstract: Apparatus and methods are disclosed whereby elongate preformed thermoplastic elements are friction-welded coaxially in an end-to-end manner so that the core elements are joined integrally to one another. Most preferably, the elongate elements are perforated tubular elements formed of a thermoplastic material which are employed as core elements in the production of cylindrical melt-blown filter cartridges. As such, the integrally joined core elements can be rotated and traversed as a unit relative to a melt-blowing die during the continuous production of indefinite length cylindrical melt-blown filter cartridges.

Abstract: A lightweight, portable automated fusion bonding apparatus consistently permits the accomplishment of fine grain, forged friction weld fusion bonding with the use of pressurized air sources commonly available at industrial facilities, automotive repair shops, and other manufacturing plants. The automated fusion bonding apparatus includes the following integrally coupled components: a drive-pressure mechanism, a passive fusion bonding mechanism, a stationary workpiece clamping mechanism, a rotatable workpiece and a stationary workpiece.

Abstract: A method of friction welding which comprises forcing together two components to be welded together and providing a relative oscillatory movement between the two components to cause rubbing together of the two components to provide friction welding thereof, said oscillatory movement being caused by means, acting on at least one of the said components, which comprises a magnetostrictive transducer.

Abstract: Hollow ball bearings of improved strength and uniformity are produced by causing identical first and second hemispheric units to rotate at different speeds in facing relationship upon a common axis, and forcing the hemispheres into aligned contact. The frictional heat generated by such contact melts the material adjacent the open rim of each contacting hemisphere. The molten material is distributed by centrifugal force about the interior of the hemispheres. The speeds of the two hemispheres are then equalized with attendant cooling and re-solidification of the molten material, thereby producing a hollow sphere.

Abstract: In an outer shell of a pump impeller of a hydrodynamic torque converter, an axial connecting branch of a hub is joined by friction welding to a bearing sleeve, which exhibits axial driving teeth for driving a recirculating positive-displacement pump. The friction welding apparatus uses a respective receiving fixture for holding the joint parts and a device for machining a weld bead with a tool.

Abstract: A friction welding apparatus and a method for its use is disclosed where the apparatus includes a plurality of interchangeable components including a drive system, an actuator assembly, a support system and a control system, the combination operable to friction weld a workpiece to a valve body.

Abstract: A method for the friction welding of parts and a holding device for at least one of the parts during the friction welding are disclosed. For the torsion-proof holding of the part in the holding device, regular positive-connection faces are provided therein. Corresponding positive-connection faces are fashioned in the region of the holding face of the part, such that the part can be retained in the holding device in a positive, torsion-proof manner. So as avoid forming the positive-connection faces located on the parts in a separate operation, these faces are produced only during the execution of the friction welding by utilizing the axial pressing force via an embossing operation carried out by the positive-connection counterfaces formed in the holding device and made cutter-like. For this purpose, the positive-connection faces are arranged in close succession in the form of a ring at an acute angle of less than 45.degree.

Abstract: In the case of a turbine wheel of a hydrodynamic torque converter having a lockup clutch, a radial flange of a hub is connected on its faces, in each case, by means of friction welding, with one radial flange respectively of an outer shell holding turbine blades and of a disk support which non-rotatably holds clutch disks.

Abstract: A process is described for inertia bonding a hollow shaft made of superalloy materials without causing compressive deformation in the shaft due to the high compressive forces generated in the segmented collet which grips the shaft. A method is also described for minimizing the residual stress in an inertia bonded joint, where the wall thicknesses of the two shaft portions to be bonded are unequal, by independently controlling the gripping forces on the portions so as to provide equal diameter reduction during the bonding process. A method for converting a front loading inertia bonding machine to a rear loading bonding machine is also described.

Abstract: A printed circuit board is fabricated by a series of steps which eliminate the necessity of post soldering cleaning of the printed circuit assembly. The board is fabricated by positioning components on the top surface and uniformly applying a hydrophobic flux to the conductor surface of the board. The board is then passed through the crest of a wave of solder at a controlled temperature and for a controlled time. The solder wave is a single wave with a bidirectional flow. The application of the hydrophobic flux according to the methods and the subsequent wave soldering of the board enables removal of the board directly from the solder flow, and storage of the board for future use.