| Patents for B23K 31 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups (10,413) |
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| 02/07/1990 | EP0354090A2 Apparatus for the ultrasonic non-destructive testing of a circular weld inside a pipe in a steam generator |
| 02/06/1990 | US4899030 High-power-density beam welding method in combination with upset welding and apparatus therefor |
| 01/30/1990 | US4896814 Heat treatment, insertion of steel plate |
| 01/30/1990 | CA1264950A1 Cutter for cutter-bar mowers and a process for producing it |
| 01/24/1990 | CN1006533B Process making components with narrow gap |
| 01/23/1990 | CA1264820A1 Process for the butt-welding of especially deep- drawable steel sheets or steel strips galvanized at least on one side |
| 01/23/1990 | CA1264530A1 Method of attaching a first metal plate to a second metal plate, and an attaching means for executing the method |
| 01/16/1990 | US4893944 Non-destructive method of testing a weld obtained by pressure welding two metal parts |
| 01/16/1990 | US4893744 Lining method using clad pieces and a clad piece for the method |
| 01/11/1990 | DE3822807C1 Method of welding thin-walled heat-exchanger tubes to the rear of a tube plate |
| 01/02/1990 | US4890785 Preventive method for plate deformation due to welding in flat plate welded structure |
| 01/02/1990 | US4890782 Insert of diamond or boron nitride compacts, hard metal or alloy support with cemented carbide interface |
| 12/12/1989 | US4886203 Method of producing by brazing bimetallic cylindrical articles |
| 12/05/1989 | US4885090 Papermaking pressure screening |
| 11/21/1989 | US4881679 Subassembly for use in manufacturing a tubular product |
| 11/14/1989 | US4880154 Brazing |
| 11/08/1989 | CN1005695B Process for mfg. electrically welded steel tubes and pipes from pre-heated strip |
| 11/07/1989 | CA1262739A1 Detachable clamp for fixturing heat exchanger core assemblies for brazing |
| 11/01/1989 | CN1036719A Brazing process for bicycle frame |
| 10/31/1989 | US4876780 Double wall vacuum tubing and method of manufacture |
| 10/17/1989 | US4873895 Manufacture of rotary drill bits |
| 10/04/1989 | CN1035974A Outer monitoring automatic welding machine for inner ring seam welding of container |
| 09/28/1989 | DE3809257A1 Drum with welded-on bung |
| 09/26/1989 | US4869422 Subassembly for use in manufacturing a clad steel plate |
| 09/21/1989 | WO1989008530A1 Process and device for soldering drill bits |
| 09/20/1989 | EP0332795A1 Method and apparatus for drill-crown brazing |
| 09/14/1989 | DE3448124C2 Method of producing several surface sections |
| 09/12/1989 | US4864896 Method and apparatus for tipping teeth of saw blades |
| 09/08/1989 | WO1989008001A1 Process for joint welding of small components |
| 09/05/1989 | US4864094 Process of fabricating a cutting edge on a tool and a cutting tool made thereby |
| 09/05/1989 | US4863091 Method and apparatus for producing continuous lengths of coilable tubing |
| 08/30/1989 | EP0329954A2 Brazed thermally-stable polycrystalline diamond compact workpieces and their fabrication |
| 08/23/1989 | EP0329314A1 Uses of uniaxially electrically conductive articles |
| 08/22/1989 | US4859830 Method of determining the weldability of a part |
| 08/22/1989 | US4859829 Adaptive welding control vision head |
| 08/16/1989 | EP0328325A1 Laminar polymeric sheet |
| 08/15/1989 | US4856700 Apparatus for assembling a structural panel in order to prevent the sag thereof |
| 08/10/1989 | WO1989007339A1 Uses of uniaxially electrically conductive articles |
| 08/10/1989 | WO1989007338A1 Uses of uniaxially electrically conductive articles |
| 08/10/1989 | WO1989007337A1 Laser-machining polymers |
| 08/10/1989 | WO1989007336A1 Laminar polymeric sheet |
| 08/09/1989 | EP0327399A1 Method of manufacturing an uniaxially electrically conductive article |
| 08/09/1989 | EP0327398A1 Laser-machining polymers |
| 08/08/1989 | US4854467 Container of sheet metal |
| 07/26/1989 | EP0325123A2 Method of making a cylindrical metal container |
| 07/26/1989 | CN1034157A Processing method for polymorphic diamond compound blade before welding |
| 07/11/1989 | US4847009 Shields, welding |
| 06/27/1989 | US4842183 Converting fractures to weld-induced cracks in chromium halide environment, then vacuum brazing |
| 06/21/1989 | CN1033449A Monolayer braze welding pipe and its making method |
| 06/13/1989 | US4839491 Method for forming a metal cylindrical container |
| 06/13/1989 | US4839490 Gas shielded metal arc welding torch for limited access welding |
| 06/08/1989 | DE3739792A1 Method and device for manufacturing cutting or stamping tools as well as cutting or stamping tool |
| 05/24/1989 | EP0180070B1 Enamelled object and method of fabricating an enamellable weld joint |
| 05/24/1989 | CN1004261B Wild joint |
| 05/17/1989 | EP0316091A1 Continuous solder reflow system |
| 05/17/1989 | EP0315762A2 Continuous furnace for soldering electronic components |
| 05/16/1989 | US4830266 Method of producing weld metal tubing empoying a reusable mandrel |
| 05/10/1989 | CN1032758A Method of and apparatus for producing tubes with small diameter and thick wall |
| 05/09/1989 | US4828160 Apparatus to be used when welding pipes together |
| 05/03/1989 | EP0313896A1 Manufacturing method and device for manufacturing optical cables |
| 04/27/1989 | DE3730011A1 Bauteil mit wenigstens einem hohlraum, insbesondere einem stroemungskanal und verfahren zu seiner herstellung Component with at least one cavity, in particular a flow channel and process for its preparation |
| 04/18/1989 | US4821819 Annular shim for construction bit having multiple perforations for stress relief |
| 04/11/1989 | CA1252457A1 Cutting structures for rotary drill bits |
| 04/05/1989 | EP0309490A1 Improved rim repair process for mis-shapen car wheel drillings. |
| 04/04/1989 | US4817743 Butterfly-type shim having semi-opened bottom and double sandwich braze joint produced therewith |
| 04/04/1989 | US4817742 Butterfly-type shim having perforations in mid-section thereof and double sandwich braze joint produced therewith |
| 03/22/1989 | CN2034495U Welding equipment with rarefying and helium filling nitrogen |
| 03/15/1989 | EP0307236A1 Adaptive welding control vision head |
| 03/14/1989 | US4811888 Method and apparatus for manufacturing small diameter, thick walled, cable sheaths |
| 03/09/1989 | DE3813433A1 Container, in particular drum |
| 03/08/1989 | EP0306036A1 A high-power-density beam welding method in combination with upset welding and apparatus therefor |
| 03/01/1989 | EP0304654A1 Process for welding a groove machined in a massive steel work piece, and use of this process to repair a fissured rotor |
| 02/28/1989 | US4808788 Oven for the vacuum brazing of aluminum |
| 02/28/1989 | US4807801 Method of ameliorating the residual stresses in metallic duplex tubes and the like and apparatus therefor |
| 02/28/1989 | US4807797 Method and apparatus for welding hollow elongated beams |
| 02/23/1989 | WO1989001561A1 Annular shim for construction bit having multiple perforations for stress relief |
| 02/21/1989 | CA1250134A1 Apparatus for rebuilding worn shoe grouser for track chain |
| 02/15/1989 | EP0303043A1 Method for fluxless oven soldering |
| 02/09/1989 | DE3742717C1 Method of manufacturing a motor-vehicle axle |
| 02/08/1989 | CN1030883A Method of welding inside groove machined in solid steel part, and utilization of the method for repairing cracked rotor |
| 01/25/1989 | EP0299969A1 Apparatus to be used when welding pipes together. |
| 01/18/1989 | EP0299740A2 Method of brazing |
| 01/18/1989 | EP0299071A1 Method and device for removing internal burrs inside longitudinally welded pipe |
| 01/17/1989 | CA1248881A1 Means and method for securing a tubular member to a side frame of a railcar truck |
| 01/10/1989 | US4796798 Method of and apparatus for continuous production of seam-welded metal tubing |
| 01/10/1989 | CA1248519A1 Composite tool and a process for the production of the same |
| 01/03/1989 | US4795866 Vacuum tube switch which uses low temperature solder |
| 01/03/1989 | US4795560 Screen plates |
| 01/03/1989 | US4795078 Diffusion welding under vacuum-corrosion and wear resistance |
| 12/28/1988 | EP0296942A1 Process for furnace brazing of two workpieces in a rarefied or controlled atmosphere |
| 12/28/1988 | EP0296299A1 Device for cutting a tube |
| 12/20/1988 | US4792302 Continuous solder reflow system |
| 12/13/1988 | US4790733 Rotary cylinder configuration and method to control slot dimensions during direct weld attachment to the shell |
| 12/13/1988 | US4790471 Liquid interface diffusion bonding; welding, hot rolling |
| 12/13/1988 | CA1246753A1 Masking of circuit boards for wave soldering |
| 11/29/1988 | CA1245515A1 Two-position sleeve brazing process |
| 11/22/1988 | US4786779 Saw blade segment welding apparatus |
| 11/22/1988 | CA1245135A1 Method of making tubular units for the oil and gas industry |
| 11/15/1988 | US4784033 Triple chip ground carbide tip bandsaw blade with ductile filler |
| 11/01/1988 | US4781256 Polycrystalline diamond element brazed to carbide carrier; heat resistance |