| Patents for B22F 7 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting (7,013) |
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| 12/31/1991 | US5076869 Computer controlled laser |
| 12/31/1991 | US5075940 Process for producing solid electrolytic capacitors |
| 12/26/1991 | WO1991019583A1 Method of manufacturing compound products |
| 12/24/1991 | US5074458 Placing copper alloy powder on back metal of steel, preheating to near curie point in reducing atmosphere by high-frequency induction, sintering |
| 12/12/1991 | DE4118003A1 Cam shaft prodn. using sintered metal powder cam component |
| 12/11/1991 | EP0460392A1 Process for making foamed metal bodies |
| 12/11/1991 | CN1056832A Technique for iron-based and iron-copper bi-metal products |
| 12/10/1991 | US5071696 Multilayer coating of aluminum oxide and titanium carbide |
| 12/04/1991 | EP0459917A1 Method of manufacturing a brake lining comprising non-jointed sleeves cores and lining obtained thereby |
| 12/04/1991 | EP0459474A1 Diamond-containing materials and a method of making products from the same |
| 12/03/1991 | US5069866 Method for manufacturing a compound pipe |
| 11/27/1991 | EP0458709A1 Method of producing a multi-block brake lining and lining thus obtained |
| 11/14/1991 | WO1991017012A1 Rotor for a rotary screw machine, a rotary screw machine and a process for manufacturing a rotor |
| 11/12/1991 | US5064608 Camshaft and method for producing the same |
| 11/06/1991 | CN1055891A Throw-away tip and manufacturing method thereof |
| 10/29/1991 | US5061439 Manufacture of dimensionally precise pieces by sintering |
| 10/29/1991 | US5060374 Method for fabricating a valve |
| 10/23/1991 | EP0453428A1 Method of making cemented carbide body for tools and wear parts |
| 10/23/1991 | EP0452618A1 Process and apparatus for preparing an abrasive body for grinding tools |
| 10/16/1991 | CN1014306B Low pressure bonding of pcd bodies and method |
| 10/15/1991 | US5057124 Less risk of breakage under thermal stress |
| 10/15/1991 | US5056209 Process for manufacturing clad metal tubing |
| 10/09/1991 | EP0450112A1 Method for the continuous fabrication of comminuted hydrogen storage alloy material negative electrodes |
| 10/09/1991 | CN1055133A Press roller coated with wear-resisting alloy and its production process |
| 10/02/1991 | EP0449566A1 Partially hardened sintered body and method of manufacturing same |
| 10/02/1991 | EP0449309A2 Method of making metalic thin film |
| 09/25/1991 | CN1054731A Process for making composite materials, and heat-receiving materials and making method therefor |
| 09/24/1991 | US5051220 Coil shape hollow path, cut into plate, filled with an exother mally reacted pulverulent mixture and compressed with a platen |
| 09/18/1991 | EP0446673A1 Process for preparing a sintered article having a compact outer layer and a smooth surface |
| 09/17/1991 | US5049164 Multilayer coated abrasive element for bonding to a backing |
| 09/10/1991 | US5046247 Coating, compression molding, insertion into pipe |
| 09/03/1991 | US5045972 High thermal conductivity metal matrix composite |
| 09/03/1991 | CA1288416C Cutting element with wear resistant crown |
| 09/03/1991 | CA1288238C Thick film conductor composition |
| 08/28/1991 | CN1013688B Method for multiple port plasma spray porous metal abradable coatings |
| 08/27/1991 | US5043137 Method and device to produce a coating from metal powder metallurgically bonded to a metallic part |
| 08/27/1991 | US5043123 Method and apparatus for manufacturing finished parts as composite bodies from pulverulent rolling materials |
| 08/24/1991 | WO1991012912A1 Metal/superconducting oxide composites and preparation thereof |
| 08/24/1991 | CA2049353A1 Metal/superconducting oxide composites and preparation thereof |
| 08/21/1991 | EP0441926A1 Process and device for making solder rods with a copper content |
| 08/20/1991 | US5041339 High hardness, load durability and adhesion, wear and seizure resistance, used in bearings, washers and bushings |
| 08/14/1991 | EP0441624A1 Multi-layered sintered sliding member |
| 08/07/1991 | CA2031070A1 Wear resistance in a hardfaced substrate |
| 08/06/1991 | CA1287224C Manufacture of rotary drill bits |
| 07/31/1991 | EP0439251A1 Production method for forged component made of composite material |
| 07/31/1991 | EP0439017A1 Multilayer coated abrasive element for bonding to a backing |
| 07/27/1991 | CA2033528A1 Production method for forged component made of composite material |
| 07/24/1991 | EP0437625A1 Method of producing metallic complex and metallic complex produced thereby |
| 07/23/1991 | US5034186 Process for providing titanium composite having a porous surface |
| 07/23/1991 | CA1286510C Stick of composite materials and process for preparation thereof |
| 07/16/1991 | US5032352 Molding |
| 07/09/1991 | US5030276 Coating with a metal which is a carbide former on portion contacting metal matrix carrier |
| 07/09/1991 | US5030233 Porous flexible metal fiber material for surgical implantation |
| 07/02/1991 | US5028493 Aluminum alloy locally having a composite portion |
| 07/02/1991 | US5028385 Treatment of metals for coating or activation |
| 07/02/1991 | US5027998 Diffision bonding; hip prosthetic |
| 06/25/1991 | CA1285126C Turbine vane nozzle reclassification |
| 06/19/1991 | CN1052271A Two step vacuum smelting method for composite metal anti-abrasive hammer sheet and cutter |
| 06/18/1991 | US5024884 Abradable seal having particulate erosion resistance |
| 06/18/1991 | CA1284868C Method and apparatus for producing parts by selective sintering |
| 06/12/1991 | EP0431924A2 Three-dimensional printing techniques |
| 06/11/1991 | US5022894 Diamond compacts for rock drilling and machining |
| 05/30/1991 | WO1991007242A1 Treatment of metals for coating or activation |
| 05/29/1991 | DE4018360C1 Porous metal body prodn. - involves compaction at low temp. followed by heating to near melting point of metal |
| 05/28/1991 | US5019308 Method of making a PTFE based tape suitable for impregnation into a porous metal matrix |
| 05/28/1991 | US5019114 Moulding tool and method of making same |
| 05/28/1991 | US5018285 Method of constructing prosthetic implant with wrapped porous surface |
| 05/21/1991 | US5017753 Method and apparatus for producing parts by selective sintering |
| 05/21/1991 | US5017437 Process for making clad articles and article made thereby |
| 05/21/1991 | US5016498 Method and apparatus for manufacturing super abrasive cutting saw |
| 05/21/1991 | US5016348 Process for the manufacture of a tubular crankshaft |
| 05/15/1991 | EP0426799A1 Continuous furnace |
| 05/14/1991 | US5015533 Member of a refractory metal material of selected shape and method of making |
| 05/08/1991 | EP0426101A2 Cylinder component for twin screw extruder and method of manufacture |
| 05/07/1991 | US5013611 Camshaft composition |
| 05/07/1991 | US5013324 Prosthetic implant with wrapped porous surface |
| 05/02/1991 | EP0245440B1 Tungsten carbide cobalt chip matrix, bearing material |
| 04/30/1991 | US5011655 Process of forming a composite structure |
| 04/30/1991 | US5011515 Composite polycrystalline diamond compact with improved impact resistance |
| 04/24/1991 | EP0424109A2 Aluminium alloy matrix composite for internal combustion engines |
| 04/24/1991 | EP0423338A1 Method of making a laminated article with wear-resistant surface |
| 04/24/1991 | CN1050836A Extra hard rock inserting diamond tool making method |
| 04/23/1991 | US5010050 Process of producing composite material consisting of sheet metal plates, metal strips and foils having a skeleton surface structure and use of the composite materials |
| 04/17/1991 | EP0422435A2 Diamond compacts for rock drilling and machining |
| 04/16/1991 | CA1282914C Process of making a sintered molding |
| 04/13/1991 | CA2021607A1 Diamond compacts for rock drilling and machining |
| 04/10/1991 | EP0421485A1 Apparatus for placement of a spinal implant |
| 04/10/1991 | EP0420962A1 Manufacture of dimensionally precise pieces by sintering. |
| 04/02/1991 | US5004653 Preliminary material for the production of composite material parts and method of making |
| 04/02/1991 | CA1282246C Graded structure composities |
| 03/27/1991 | EP0418842A1 Manufacturing procedure for a piston ring |
| 03/21/1991 | WO1991003356A1 Process and device for making solder rods with a copper content |
| 03/21/1991 | DE3929287A1 Verfahren und vorrichtung zum herstellen von loetstaeben mit einem kupferanteil Method and apparatus for the manufacture of soldering rods with a copper content |
| 03/20/1991 | EP0418078A2 Composite abrasive compacts |
| 03/15/1991 | CA2023284A1 Composite abrasive compacts |
| 03/13/1991 | EP0416852A2 Multiple material systems and assisted powder handling for selective beam sintering |
| 03/12/1991 | US4999338 Preparation of metal/superconducting oxide composites |
| 03/12/1991 | US4999256 Impact and tensile strength; elasticity |
| 03/12/1991 | US4998955 Assembled camshaft |
| 03/05/1991 | US4997674 Conductive metallization of substrates via developing agents |