| Patents for C21D 7 - Modifying the physical properties of iron or steel by deformation (3,811) |
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| 09/07/2005 | EP1570172A1 Method for producing high pressure fuel accumulators |
| 09/07/2005 | CN1664152A High-strength anti-corrosion steel plate for rail vehicle and its making method |
| 09/07/2005 | CN1664150A Sulfur-containing free-cutting pinion steel and method for producing steel pipe |
| 09/07/2005 | CN1664147A High anti-extrusion petroleum casing pipe and method for producing same |
| 09/07/2005 | CN1664129A Lower fluence boundary oblique laser shock peening |
| 09/06/2005 | US6938448 Shaped metal panels and forming same by shot peening |
| 09/01/2005 | WO2005080623A1 Metal working method and metal element |
| 08/25/2005 | US20050183799 Non heat treated; ferrite area ratio is not more than ten percent; carbon equivalent between five tenths and nine tenths percent; rolling is completed without lowering the temperature during the manufacturing process; the precipitates are fine because of no reheating |
| 08/24/2005 | CN1657643A High strength seamless steel pipe and its manufacturing method |
| 08/24/2005 | CN1657637A Centrifugal strengthening machine for strengthening steel ball by mutural collision |
| 08/24/2005 | CN1216159C Gas and solid two-phase flaw impact metal material surface nano deyice and its use |
| 08/23/2005 | US6932876 A surface treatment of propeller, bearings, using a small diameter, freely-moving impact needles, ultrasonic transducers, to scan the external working surface, convert ultrasonic impact energy to kinetic energy, striking the surface |
| 08/18/2005 | WO2005075873A1 Screw joint for oil well pipe, and method of producing the same |
| 08/18/2005 | WO2005074600A2 Treatment of spot welded joints for fatigue life improvement |
| 08/18/2005 | DE102004013257B3 Process for increasing the fatigue strength of crankshafts of motor vehicle engine comprises applying a pulling force on the crankshaft whilst it is rotating, and hardening using a laser beam |
| 08/17/2005 | EP1563106A1 Cold-worked steels with packet-lath martensite/austenite microstructure |
| 08/17/2005 | CN1654686A Double temperature quenching and strong toughening treatment method for cold forging die |
| 08/10/2005 | EP1561827A1 Method of welding a ferritic steel comprising a post weld heat treatment and cold working on the weld |
| 08/10/2005 | CN1653279A Method for manufacturing a bearing raceway member |
| 08/10/2005 | CN1651589A High strength weldable ageing hardening steel and its production method |
| 08/10/2005 | CN1214066C Non-inflammable, translucent polycarbonate molding materials |
| 08/09/2005 | US6926970 Apparatus and method for forming weld joints having compressive residual stress patterns |
| 08/09/2005 | US6926780 Method of surface self-nanocrystallization of metallic materials |
| 08/04/2005 | WO2005070614A1 Process for forming ultrafine crystal layer, machine component having ultrafine crystal layer formed by the ultrafine crystal layer forming process, process for producing the machine component, process for forming nano-crystal layer, machine component having nano-crystal layer formed by nano-crystal layer forming process, a |
| 08/04/2005 | US20050167401 Treatment of spot welded joints for fatigue life improvement |
| 08/03/2005 | EP1559796A1 Method of increasing toughness of heat-affected part of steel product welded joint |
| 08/02/2005 | US6923877 Vaporization of opaque overlay and laser shock peening the surface of the workpiece produces a region of compressive residual stress; single operation by continuous movement |
| 07/28/2005 | WO2005068674A1 Austenitic stainless steel, method for producing same and structure using same |
| 07/28/2005 | WO2005068666A1 Component with internal compressive stress, method for producing said component and device for generating internal compressive stress |
| 07/28/2005 | US20050161132 inductor rings having dielectrics used for hardening gear teeth using induction heating |
| 07/28/2005 | US20050160602 Method for manufacturing a bearing raceway member |
| 07/28/2005 | DE10361739A1 Verfahren zum Bearbeiten von Kurbelwellenradien A method for processing crank radii |
| 07/27/2005 | EP1557477A1 METHOD FOR PRODUCING OXIDATION-RESISTANT HIGH Cr FERRITIC HEAT RESISTANT STEEL |
| 07/27/2005 | CN1644746A Low carbon silicon cold rolling phase variable plastic steel and production thereof |
| 07/27/2005 | CN1644743A Hot rolled steel plates with excellent machinability, fatigue strength and surface appearance |
| 07/27/2005 | CA2494411A1 Method and apparatus for case hardening a work piece |
| 07/21/2005 | US20050158460 Method for protecting new/used engine parts |
| 07/21/2005 | US20050155673 High strength hot rolled steel sheet superior in workability, fatigue property, and surface quality |
| 07/21/2005 | US20050155203 Method and apparatus for improving the magnitude of compressive stress developed in the surface of a part |
| 07/21/2005 | DE10216492B4 Verfahren zum Herstellen eines Wälzlager-Bauteils aus Metall A method of manufacturing a rolling bearing component made from metal |
| 07/20/2005 | EP1555329A1 Workpiece with internal compressive stresses, method and apparatus for producing internal compressive stresses |
| 07/14/2005 | WO2005063442A1 Method for machining crankshaft radii |
| 07/13/2005 | EP1552028A1 Ultrasonic impact machining of body surfaces to correct defects and strengthen work surfaces |
| 07/07/2005 | US20050145308 Transition metals alloy of steel, substantially free of ferrite, sulfur, carbides, nitrides; subected to mechanical, thermal and corrosive stresses for application in oilfield technology |
| 07/07/2005 | US20050145306 Welded joints with new properties and provision of such properties by ultrasonic impact treatment |
| 07/07/2005 | US20050145000 Apparatus and method for rolling workpieces |
| 07/06/2005 | CN1635935A Device for processing a metal slab, plate or strip, and product produced using this device |
| 07/06/2005 | CN1209473C Nanolizing method for metal material surface |
| 06/30/2005 | WO2005059193A1 Cold-rolled fixing screw comprising a self-tapping thread |
| 06/30/2005 | WO2005058546A1 Fixed roller head for split-pin crankshafts |
| 06/30/2005 | US20050139298 Cold-formed spring elements with improved spring properties and a high dimensional accuracy; leaf springs, spring rails for windscreen wipers and reed lamellae for textile machines, oil stripper rings for internal combustion engines and sealing lamellae for hydraulic installations |
| 06/29/2005 | EP1548140A1 Stainless steel product containing b and method for production thereof |
| 06/29/2005 | EP1546426A1 Steel composition and parts forged by a forging die |
| 06/29/2005 | CN1632156A Metal material index rolling method |
| 06/29/2005 | CN1632154A Fe-Cr-Mo base alloy steel strip, its production method and use |
| 06/28/2005 | US6911100 Method for controlling residual stress in prosthetics |
| 06/23/2005 | US20050132557 Golf club head composed of damascene patterned metal |
| 06/22/2005 | CN1207405C Metal-surface supersonic stress peening method |
| 06/14/2005 | US6906124 Fireproofing, chemical resistance, optics |
| 06/08/2005 | EP1538232A1 Corrosion resistant austenitic steel. |
| 06/08/2005 | EP1536898A1 Press-hardened part and method for the production thereof |
| 06/03/2005 | CA2488965A1 Corrosion-resistant austenitic steel alloy |
| 06/01/2005 | CN1621539A Technology for prevention of GH169 alloy notch brittle |
| 05/24/2005 | US6896746 Hot-rolled steel wire rods and bars usable for machine structural use without annealing and method for producing the same |
| 05/24/2005 | US6895793 Apparatus and method for rolling workpieces |
| 05/19/2005 | US20050103777 Gear part and method of producing thereof |
| 05/19/2005 | US20050103362 Method and devices for peening and cleaning metal surfaces |
| 05/18/2005 | EP1531276A2 Power transmission shaft |
| 05/18/2005 | EP1230411B1 Use of a precipitation hardenable martensitic stainless steel |
| 05/18/2005 | CN1616850A Gear part and method of producing thereof |
| 05/18/2005 | CN1616838A Power driving shaft |
| 05/17/2005 | US6894251 Method for welding on stress-sensitive materials |
| 05/17/2005 | US6893608 Steel for plastic molds and process for their heat treatment |
| 05/17/2005 | US6893225 Metallic article with integral end band under compression |
| 05/12/2005 | WO2005042931A1 Method of manufacturing camshaft, camshaft, and cam lobe material used for the camshaft |
| 05/12/2005 | US20050101392 Power transmission shaft |
| 05/12/2005 | US20050098244 Metallic bellows, manufacturing method therefor, and accumulator therewith |
| 05/11/2005 | EP1529993A1 Metallic bellows, manufacturing method therefor, and accumulator therewith |
| 05/11/2005 | EP1528995A1 Spring element made from a ferritic chrome steel |
| 05/11/2005 | CN1201028C High manganese deplex stainless steel having superior hot workabilities and method for manufacturing thereof |
| 05/05/2005 | US20050092397 Ultrasonic impact methods for treatment of welded structures |
| 04/21/2005 | WO2005035801A1 Crankshaft comprising a combined gear wheel and method for the production and use of said crankshaft |
| 04/19/2005 | US6881498 Surface process involving isotropic superfinishing |
| 04/12/2005 | US6878074 Golf club head composed of a damascene patterned metal |
| 04/07/2005 | WO2004099451A3 Method for treating the surface of a machine element |
| 04/05/2005 | US6874214 Anti-corrosion coating applied during shot peening process |
| 03/31/2005 | WO2005014869A3 Process of preparing metal parts to be heated by means of infrared radiance |
| 03/31/2005 | US20050066801 Method for gun barrel manufacture using tailored autofrettage mandrels |
| 03/24/2005 | US20050061407 Wave-processing method and wave-processing die for core metal of wet friction material |
| 03/24/2005 | US20050061402 Method for producing gears and/or shaft components with superior bending fatigue strength and pitting fatigue life from conventional alloy steels |
| 03/24/2005 | DE10357441B3 Hard-rolling head with dual casings, for treating outer radii of adjacent big-end bearings of split-pin crankshaft, has extended casings connected to support plate |
| 03/23/2005 | EP1516940A1 Method for producing gears and/or shaft components with superior bending fatigue strength and pitting fatigue life from conventional alloy steel |
| 03/23/2005 | EP1409167B1 Method and device for shaping structural parts |
| 03/23/2005 | CN2687137Y Low noise steel ball surface reinforcing machine |
| 03/17/2005 | US20050056013 Turbocharger compressor wheel having a counterbore treated for enhanced endurance to stress-induced fatigue and configurable to provide a compact axial length |
| 03/17/2005 | DE19815483B4 Verfahren und Einrichtung für die Oberflächenhärtungsbehandlung von Stahlkugeln für ein Kugellager Method and apparatus for the surface hardening of steel balls for a ball bearing |
| 03/16/2005 | EP1161315A4 Method and apparatus for densifying powder metal preforms |
| 03/15/2005 | US6866180 Forming workpiece so that predetermined area undergoes tensile strain in a bend area; noncracking |
| 03/09/2005 | EP1368141B1 Flat metal, production device and production method |
| 03/09/2005 | EP1183121B1 Blank for gunbarrel, method for producing said gunbarrel and gunbarrel |