| Patents for C21D 7 - Modifying the physical properties of iron or steel by deformation (3,811) |
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| 03/20/1991 | EP0417318A1 Method of producing rollable metal sheet based on quench-solidified thin cast sheet |
| 01/09/1991 | EP0407275A1 Method of making workpieces, with excellent mechanical properties, from non-treated steel |
| 12/27/1990 | EP0404674A1 Process and device for improving the fatigue resistance of helicoidal springs under compression and springs obtained by this process |
| 12/12/1990 | CN1047698A Cold molding reiforing process for low-carbon manganese niobium steel fastening parts |
| 12/11/1990 | CA1277630C Rubber reinforcing material comprising a zinc-plated alloy filament |
| 10/23/1990 | US4964293 Method of manufacturing metallic gaskets |
| 10/01/1990 | WO1990011849A1 Method of producing rollable metal sheet based on quench-solidified thin cast sheet |
| 09/18/1990 | US4957700 High strength non-magnetic stainless steel |
| 08/14/1990 | US4947533 Manufacturing method of disk for belt-driven continuously-variable-speed drive |
| 08/08/1990 | EP0381648A1 Method to increase the strength of an element for percussive drilling |
| 08/02/1990 | CA2009179A1 Method to increase the strength of an element for percussive drilling |
| 07/03/1990 | US4939057 Surface-treated metal body, process for producing the same, photoconductive member using the same and rigid ball for treating metal body surface |
| 06/26/1990 | US4937421 Laser peening system and method |
| 05/29/1990 | CA1269594A1 Process for manufacturing pearlitic steel wire |
| 05/15/1990 | US4924585 Method and apparatus for continuous compression forging of continuously cast steel |
| 03/28/1990 | EP0360115A2 Improvements in and relating to piston rings |
| 03/20/1990 | US4909866 High strength spring and its process of manufacturing |
| 01/23/1990 | CA1264646A1 Hot rolling method and apparatus for hot rolling |
| 01/16/1990 | US4893490 Device and process for controlling the effectiveness of particle hammering of the inner surface of a steam generator tube |
| 01/02/1990 | CA1264109A1 Tube expansion apparatus |
| 12/28/1989 | DE3917380A1 Method for cold working the surface zone of a workpiece and for introducing residual compressive forces |
| 12/26/1989 | US4888863 Method and apparatus for producing turbine blade roots |
| 12/12/1989 | US4885829 Fatigue life enhancement of dovetail connector slots and noncircular openings |
| 11/16/1989 | WO1989010806A1 A method and apparatus for correcting deviations in the shape of hardened metal objects |
| 11/15/1989 | CN1037104A Method and apparatus for producing turbine blade roots |
| 10/25/1989 | EP0338682A2 Method of strengthening metal material and apparatus therefor |
| 10/17/1989 | US4874644 Variable strength materials formed through rapid deformation |
| 10/04/1989 | CN1036041A Method to strengthen cold deformation of plates |
| 10/03/1989 | US4870850 Method and device for leveling metal strip to be fed into continuous annealing furnace |
| 10/03/1989 | US4870845 Working apparatus for crankshaft |
| 08/23/1989 | EP0328891A1 Use of welding materials and process for repairing welded joints |
| 08/01/1989 | CA1257989A1 Strain imparting device |
| 07/27/1989 | DE3804639A1 Surface coating |
| 07/11/1989 | US4846900 Process for the production of a compresssed gas container made of austenitic steels by cryodeformation |
| 05/31/1989 | EP0318356A1 Device for supporting the vertebrae of the spinal column |
| 05/23/1989 | CA1254543A1 Method for straightening a rail and straightened rail |
| 05/16/1989 | US4830683 Apparatus for forming variable strength materials through rapid deformation and methods for use therein |
| 05/16/1989 | CA1254062A1 Manufacturing process of martensitic stainless steel machine bars or wires and the like |
| 05/02/1989 | US4825680 Method of manufacturing metal substrates for disk for memory storage media |
| 05/02/1989 | US4825674 Metallic tubular structure having improved collapse strength and method of producing the same |
| 04/20/1989 | DE3734123A1 Method for the production of a thread on a ball journal and for smoothing or hardening the surface of the ball journal and an apparatus for carrying out the said method |
| 04/18/1989 | US4821545 Installation for the detensioning of expanded tubes, particularly in a heat exchanger |
| 04/18/1989 | US4821388 Method for processing a nut seat on a wheel |
| 04/04/1989 | CA1251955A1 Method of manufacturing of steel sheet for easy open end can with superior openability |
| 03/29/1989 | EP0308496A1 Apparatus and methods for forming variable strength materials through rapid deformation. |
| 03/21/1989 | US4814025 Method of improving properties of superplastically formed alloys by healing cavities |
| 02/21/1989 | US4805429 Shot peening system and method with velocity sensing |
| 02/15/1989 | EP0303016A1 Method of making a gas pressure vessel of austenitic stainless steel by cryogenic forming |
| 01/24/1989 | US4799974 Overaging, deforming, recrystallization |
| 01/18/1989 | EP0299111A2 Method and apparatus for straightening unbalanced workpieces |
| 01/17/1989 | CA1248859A1 Process and device for compressing by hammering a tube of a steam generator set in a tube plate |
| 01/11/1989 | CN1030257A Apparatus for forming variable strength materials through rapid deformation and methods for use therein |
| 01/03/1989 | US4795681 Steel sheets for painting and a method of producing the same |
| 12/28/1988 | EP0296269A1 Method of and device for edged mounting a pipe bend |
| 12/28/1988 | CA1247350A Method for extending the life of a cutting tool |
| 12/20/1988 | CA1246838A1 Tube expansion process |
| 12/01/1988 | EP0232281A4 Ultra high carbon steel alloy and processing thereof. |
| 11/23/1988 | EP0291609A1 Apparatus for relieving stresses in expanded tubes, especially in a heat exchanger |
| 11/08/1988 | CA1244323A1 Hardenable cast iron |
| 10/26/1988 | CN88102197A Variable strength materials formed through rapid deformation |
| 10/19/1988 | EP0286916A2 Method for compaction of inside blowholes of castings |
| 10/06/1988 | WO1988007588A1 Variable strength materials formed through rapid deformation |
| 10/06/1988 | WO1988007587A1 Apparatus and methods for forming variable strength materials through rapid deformation. |
| 10/04/1988 | US4775426 Casting oversized, cold forging, compressing; high strength, corrosion resistance |
| 09/28/1988 | EP0284476A1 Device and method for shot peening of the inner surface of a steam generator tube and for checking the efficiency of the shot peening |
| 09/27/1988 | US4773244 Apparatus for producing a substrate for a photoconductive members |
| 09/20/1988 | US4772336 Method of improving residual stress in circumferential weld zone |
| 09/20/1988 | US4771627 For minimizing stress concentration and increasing fatigue strength |
| 08/25/1988 | DE3704707A1 Method for the production of tubes |
| 08/09/1988 | CA1240216A1 Materials transformable from the nonamorphous to the amorphous state under frictional loadings |
| 07/26/1988 | US4759806 Patenting the wire by transformation in a transformation temperature and of drawing steel wire to smaller diameter |
| 07/05/1988 | US4755238 Straightened asymmetrical railway rail having low residual internal stress produced by stretching steel rail having specified tensile strength by subjecting to tensile stress exceeding offset yield strength up to plastic deformation |
| 06/28/1988 | CA1238506A1 Method for improving the release and finish characteristics of metal stamping dies |
| 06/22/1988 | EP0271688A1 Process for obtaining bainitic nodular cast iron castings |
| 05/24/1988 | US4745786 Hot rolling method and apparatus for hot rolling |
| 05/10/1988 | US4742706 Strain imparting device |
| 05/03/1988 | CA1235927A1 Work-hardenable substantially austenitic stainless steel and method |
| 04/20/1988 | EP0263971A1 Method and device for leveling metal strip to be fed into continuous annealing furnace |
| 04/13/1988 | EP0263725A2 Method and apparatus for continuous compression forging of continuously cast steel |
| 04/12/1988 | US4737203 Method for reducing core losses of grain-oriented silicon steel using liquid jet scribing |
| 03/15/1988 | US4730474 Method of relieving residual stress in metal pipe |
| 03/01/1988 | US4728083 Method and apparatus for scribing grain-oriented silicon steel strip |
| 02/23/1988 | CA1233099A1 Mandrel having an eddy current probe |
| 02/16/1988 | US4725512 Materials transformable from the nonamorphous to the amorphous state under frictional loadings |
| 02/11/1988 | DE3626506A1 Process for reducing surface cracking in rods and wires of concrete-reinforcing steels |
| 02/02/1988 | US4722755 Austenite and ferrite components; nitrogen incorporated in solid solution |
| 01/12/1988 | US4718908 High-strength, cold-forged type 316L stainless steel for orthopedic implant |
| 12/22/1987 | US4713882 Device for compressing by hammering a tube of a steam generator set in a tube plate |
| 12/01/1987 | US4709569 Method for producing gears |
| 11/17/1987 | US4706356 Process for compressing by hammering a steam generator tube set |
| 11/04/1987 | CN87102421A Steel sheets for painting and method of producing the same |
| 10/07/1987 | EP0240223A2 Steel sheets for painting and a method of producing the same |
| 09/29/1987 | US4696083 Method for making machine parts and machine parts produced thereby |
| 09/16/1987 | EP0236805A2 Use of austenitic-steel work pieces for low temperature application |
| 09/15/1987 | US4693102 Shot-peening method |
| 08/19/1987 | EP0232558A1 Process for manufacturing pearlitic steel wire |
| 08/19/1987 | EP0232281A1 Ultra high carbon steel alloy and processing thereof |
| 08/11/1987 | US4685323 Method for increasing the buckling load capacity and the comprehensive and tensile properties of a column |
| 07/28/1987 | US4683014 Mechanical stress improvement process |
| 07/28/1987 | US4682489 Process for increasing the fatigue strength of components with different shapes or designs |