Abstract: An electrical interface includes an insulating body, first electrodes, and second electrodes. The insulating body includes a first front edge surface and a second front edge surface facing in a direction along a transmission direction of an optical signal at an optical interface and having different heights. The first electrode and the second electrode are provided on the insulating body so as to have a thickness from the first front edge surface and the second front edge surface in a direction of the height. A first flexible wiring board and a second flexible wiring board include a first area and a second area extending in directions along the first front edge surface and the second front edge surface, respectively, of the insulating body, and include, in the first area and the second area, first pads and second pads electrically connected with the first electrodes and the second electrodes.

Abstract: [Problems] To provide a process for producing a thermal sprayed, metal plated steel tube having a metal layer substantially uniform and favorable over the whole surface in a highly productive manner. [Means for solving] A process for producing a metal tube comprising continuously forming a metal plate composed of a first component into a tubular shape and continuously welding its butted ends to form the metal tube, wherein, after the continuous welding, a metal layer composed of a second component which is different from the first component is formed by thermal spraying directly over the surface of the metal tube, the metal layer having no discontinuities in the circumferential and lengthwise directions. Especially it is preferred that the process comprises a process step of making the thickness distribution of the metal layer more uniform after formation of the thermal sprayed metal layer over the external surface.

Abstract: A method of forming a sputtering target assembly and the sputtering target assembly made therefrom are described. The method includes bonding a sputtering target to a backing plate at a low temperature. Also described is a method of forming a sputtering target assembly such that a gap is formed between the sputtering target and the backing plate. Also described is a method of forming a sputtering target assembly providing a mechanism to prevent unintended sputtering into the backing plate.

Abstract: A component which has a surface crevice or crack and contaminants on at least one face of the opening is welded. The weld is effected by first plastically deforming the surface of the component to close the surface opening to a predetermined depth less than the depth of the opening and contaminated faces defining the opening to form a sealed ligament. The sealed ligament leaves unclosed a portion of the crack below the sealed ligament. The closed surface is hermetically sealed by fusion-welding to a depth of penetration equal to or less than the predetermined depth of the sealed ligament to minimize or eliminate expulsion of contaminants in the sealed ligament.

Abstract: In a process for producing longitudinally welded tubes, a metal strip, which is continuously pulled from a supply, is gradually formed into a slit tube and the longitudinal slit of said slit tube is welded. The metal strip (2) is pulled through a plurality of drawing dies (8, 9, 10, 11) arranged one behind the other and having a diameter that decreases in production direction, and in each of the drawing dies (8, 9, 10, 11) is increasingly bent in circumferential direction. The slit tube is closed in a last forming step (15) immediately in front of the welding point.

Abstract: Manifold for a heat exchanger intended to be joined by brazing or soldering to heat transfer tubes. A portion of a surface of the manifold that will be joined to the tubes is proved with at least one recess in which a brazing material is mechanically locked.

Abstract: Edge mounting flexible media to a rigid PC board construction can be achieved by various methods. In any method used, there is a desire to create solderable pads on the edge of the rigid PC board. In accordance with the invention, the solderable pads are created by edge plating the PC Board or by a sliced via method. Depending on the type of flexible transmission line used, the construction will differ accordingly. For terminating flexible circuit media, the flex pads are laid out in such a way that the pads are etched in a configuration that matches up with the edge pads on the rigid PC Board. Solder past is then applied to the pads on the flex. The rigid PC Board is fixtured at a right angle to the flex and run through the reflow oven.

Abstract: A header for a flat tube liquefier is composed of first and second components. The first component is provided in a tube bottom with receiving slots for the flat tubes and the second component complements the header structure, with the two components following one another in two overlap zones that extend along the length of the header and seal the two components against each other. A solder connection is provided in the respective overlap zone. If in these two overlap zones the first component is arranged to lie on the outside and the second component on the inside, the first component grips around the second component toward the interior and/or the second component is disposed completely within the outer width dimension of the first component. Moreover, beads may be formed in the tube bottom at both sides of the respective receiving slot at the side of the receiving slot that faces away from the curvature of the tube bottom.

Abstract: A method of joining metal materials by spraying molten metal into a cavity between the articles to be joined. Prior to deposition of the metal, the surface of the cavity is cleaned and the articles to be joined are preheated. Subsequent to deposition of the metal within the cavity, the joined articles are cooled at a rate that precludes damage due to thermal effects and the deposited metal is consolidated in the cavity by hot pressing.

Abstract: A composite structure is manufactured by joining a first material, preferably made of a magnetically permeable material and having a first joining surface in which a recess having an overhang surface is formed, to a second material preferably made of an electrically conductive material and having a second joining surface to be joined to the first joining surface of the first material. On the second joining surface is integrally formed a protrusion having an outer configuration substantially corresponding to the inner shape of the recess. The first and second materials are firmly mechanically joined to each other by, for example, a casting method, a rolling method, a pressing method, or a method utilizing plastic flow of the second material.

Abstract: Nozzle block vanes having damaged trailing edge sections are repaired by removing the damaged section and replacing it by a new forged replacement trailing end section. The replacement section is coated with an erosion resistant coating leaving an uncoated border on three sides, preferably beveled. The coated section is welded to the vane and walls of the nozzle block and the weld portion ground to give a uniform contour between the vane and replacement section. The block is heat treated or the heat affected zone heat treated to provide a repaired vane.

Abstract: A new blank is provided for use in the manufacture of a modified fast fade rear axle housing of rectangular cross-section having a shortened neck shape which is bent by hot forming preferably at temperatures of 1350.degree. F.-1650.degree. F. to maximize the torsional strength of the housing in the expanded annular section where the transition zone joins the center differential receiving portion and the beam arms of the axle. Two U sections are welded after being bent to provide parallel legs joined to a web by arcuate corner sections. The axially extending curvature of the corner sections and the web are respectively convexly defined by a first radius R.sub.1 measured from a true origin at the vertical axis of the differential receiving portion where it intersects the longitudinal axis of the axle and a second eccentric radius R.sub.2 measured from a displaced origin and concavely by blending radii R.sub.4 and R.sub.

Abstract: A method and device are shown for manufacturing rotary rock bits. The method eliminates repositioning errors in robotic welding operations by combining a cutting torch and a welding torch on a single, rotatable bracket whereby a bit can be welded at a single station without multiple rechuckings. The quality of the weld tie-in between any two intersecting seams (radial-radial or radial-axial) results where the groove for the latter seam in each pair is cut after the first seam in the pair has been welded.

Abstract: A welding structure for a disc wheel installed on a vehicle. The disc wheel comprises a rim and a disc, the disc having an outer peripheral portion fixed to an inner surface of the rim by welding. The edge surface of the outer peripheral portion of the disc is inclined with respect to the rim, and when assembled contains the end portion of the weld.

Abstract: For the supply of water to nozzles on the circumference of a cutting head there are, within a cutting head (1) composed of individual discs (2), provided bores (14 respectively 16) extending in direction to the axis of rotation of the cutting head (1). The individual annular discs (2) are connected one with the other by welding, the weld beads extending over a radial area (a) of the cutting head which is greater than the diameter (b) of the bores (14 respectively 16). The bores (14 respectively 16) extend through the weld beads (19) (FIG. 2).

Abstract: A method of producing sheathed cables and/or transducers such as wire strain gauges, temperature probes and so on. Such cables comprise an outer tubular casing and one or more electrically conductive leads embedded in insulating material. Production begins on a flat strip which is bent by means of a female mold into a tubular shape with an approximately circular cross-section, whereby the free edges of this blank are bent back so as to form radially protruding flanges. The leads are inserted into this preformed tubular casing and the spaces are filled with insulating material in powder form. The diameter of the tube is reduced and the density of the inserted insulating material is increased by pulling on the flanges in a specially designed abutment. After the desired density is attained, the flange is cut off and the free edges are welded together.

Abstract: A load carrying structure (10) is, for example, the stick (12) of an excavator or another work element having at least three load input locations (70,72,74). In operating the excavator, for example, failure of the stick can occur owing to side, torsional, bending and columnar loading through bucket (16), boom (14), and control element connections (18,20,76) at associated load input locations. A method for making the structure (10) includes connecting top and bottom plates (22,24) and side plates (30,32) which extend outwardly to define respective load input locations (70,74). Other load input locations (72,74,144) are on a box structure (82) formed with the side and top and bottom plates (30,32; 22,24). The structure (10) has a more uniform construction, particularly without weld discontinuities, and resists input forces more effectively owing to the relationship of the load input locations to substantially overcome failures associated with such structures.

Abstract: A T-shape joint includes a slant gap formed between joint faces of a vertical base metal and a horizontal base metal and the slant gap is filled perfectly with a brazing alloy without remaining any defect.The slant gap can be saw tooth shape gaps. The slant gap can be formed in the thickness direction of the vertical base metal.The molten brazing metal penetrates into the slant gap without forming a cavity for a stronger joint.

Abstract: A weld-joint in a segmented sheath of a large diameter, high voltage, compressed gas insulated transmission line includes longitudinal, radially aligned outer margins forming a longitudinal seam of joined sheath sections, an internally disposed recess offset from the joined margins, a longitudinal tongue overlapping the joined outer margins and mating with the recess, and a longitudinal sealing gasket, preferably an elastomeric tube, disposed in the region between the tongue and the tongue-receiving recess. A hollowed cutaway section is provided within the joint and aligned with the radial margins to form an enclosed cavity. A longitudinal ridge is provided along the sealing gasket for spacing and protecting the gasket. The end of the tongue and the adjacent walls of the internally disposed recess form together a Vee groove for trapping loose particles internal of the tubular enclosure formed by the joined sheath sections.

Abstract: The specification discloses a method and apparatus for assuring the integrity of outside weldings of pipelines. Pipe sections are prepared for welding by forming a beveled profile with a relatively narrow annular contact band on the ends of each pipe section. When the pipe sections are abutted end to end for welding, the leveled profiles form a relatively deep groove on the outside of the pipe between the pipe sections, with the annular contact bands abutting and spaced inwardly from the grooves. The contact band on at least one of the pipe sections is circumferentially prepared such as by knurling to provide controlled spacing between the contact bands of the pipe sections. A welding arc is applied to the bottom of the groove from the exterior of the pipe sections to weld the annular contact bands together. Welding penetration is enhanced by the circumferential preparation of the contact bands.

Abstract: A hollow rectangular boom formed with four corner sections of identical cross section and plates interconnecting the corner sections is disclosed herein. Each of the corner sections is identical and is generally L-shaped in cross section with first and second legs each having a recess with adjacent pairs of corner sections being interconnected by flat plates received into the respective recesses and welded therein. The invention also resides in the method of assembling the various parts to form the hollow boom sections.

Abstract: A bulldozer blade comprises a push plate having a cutting edge mounted on a lower end thereof and a plurality of structural members secured on the back of the push plate and welded together to increase the structural integrity thereof. Each adjacent pair of such members are joined together at a weldment comprising a groove and contiguous dam formed on a surface of one member to have a corner of the other member disposed adjacent thereto and common weld means at least substantially filling the groove and securing the members together. The groove and dam are preformed on an arcuate portion of the first member during a cold forming operation.

Abstract: An apparatus for forming an elongated groove and contiguous dam on a member, such as the push plate of a bulldozer blade, comprises a pair of support and guide assemblies defining a space therebetween. The member is fed through the space and a forming roller, rotatably mounted on one of the assemblies, forms the groove and dam on the member.

Abstract: A system for forming wheel rim blanks in which a coiling station, an end conditioning press, a welding station, and a weld seam finishing station are all arranged to form a continuous path in the direction of the axis of the rim blank so that blanks can be readily transferred from one station to the next, with each station being simultaneously loaded and unloaded. In the coiling station a blank of strip material is coiled into the form of a cylinder with the longitudinal edges of the coiled blank defining a preloaded longitudinal gap. The coiled blank is then axially transferred to an end conditioning press while moving the longitudinal edges of the blank to predetermined circumferential positions so that the gap has a preselected width and circumferential location as it enters the press. Each time a coil blank is axially transferred from the coiling station to the end conditioning press, an end conditioned blank is simultaneously axially transferred from the press to the welding station.