| Patents for C21D 7 - Modifying the physical properties of iron or steel by deformation (3,811) |
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| 10/11/2001 | WO2001075186A1 Hot rolled wire or steel bar for machine structural use capable of dispensing with annealing, and method for producing the same |
| 10/10/2001 | CN1316530A Method for controlling two-phase steel organization |
| 10/04/2001 | EP1138795A1 Law material for bearing parts |
| 09/27/2001 | WO2001071208A1 Method for finishing the surface of a rolling contact component |
| 09/26/2001 | EP0758406B1 A technique to divert cracks |
| 09/25/2001 | US6294130 Method of manufacturing metallic products such as sheet by cold working and flash anealing |
| 09/25/2001 | US6294029 Method of treating and smoothing sliding surface |
| 09/19/2001 | EP0792379B1 Dual-phase steel and method thereof |
| 09/19/2001 | CN1313420A 缝纫机 Sewing |
| 09/18/2001 | US6289705 Method for the ultrasonic peening of large sized annular surfaces of thin parts |
| 09/13/2001 | WO2001066807A1 Method for reinforcing a tank wall |
| 09/13/2001 | WO2000047354A9 Method of manufacturing metallic products such as sheet by cold working and flash annealing |
| 09/12/2001 | EP1132486A1 Method for reinforcing a tank wall |
| 09/11/2001 | US6287399 Metallic article resistant to buckling |
| 09/11/2001 | US6287397 Free from embrittlement |
| 09/07/2001 | WO2001064398A2 Method and apparatus for providing a residual stress distribution in the surface of a part |
| 09/07/2001 | WO2001064397A2 Method for reducing tensile stress zones in the surface of a part |
| 09/05/2001 | EP1129229A1 Steel, use of the steel, product made of the steel and method of producing the steel |
| 09/04/2001 | US6284064 Performing a tension working to a carbon steel material having an average hardness in the range of hrc 50 to 57 and a bainite structure to provide a residual strain of at least 0.3% |
| 08/30/2001 | US20010017172 Method for controlling structure of two-phase steel |
| 08/29/2001 | EP1127945A2 Method and apparatus for peening |
| 08/29/2001 | EP1127627A1 Hot finish-rolling method for bar steel |
| 08/22/2001 | EP1124996A1 Method for processing billets out of metals and alloys and the article |
| 08/22/2001 | EP0742841B1 Method of making dual phase steel plate |
| 08/16/2001 | WO2001058617A1 Method and apparatus for manufacturing structures with improved fatigue life |
| 08/16/2001 | EP0777752B1 Method of making profiles of high-strength structural steel having at least one flange |
| 08/16/2001 | CA2400540A1 Method and apparatus for manufacturing structures with improved fatigue life |
| 08/15/2001 | CN1308010A Garbage coating stripper for local electroplating equipment |
| 07/31/2001 | US6267558 Dual intensity peening and aluminum-bronze wear coating surface enhancement |
| 07/12/2001 | WO2001049887A1 Method for working steel |
| 07/07/2001 | CA2293995A1 Hot rolled steel having improved formability |
| 07/05/2001 | DE19963477A1 Device for finishing and dressing internal toothing in an internal geared wheel causes a retainer for the internal geared wheel to rotate around this wheel's axis with a rotating finishing gearwheel to engage internal toothing. |
| 07/04/2001 | CN1301873A Method for preparing nanometer layer on metal material surface |
| 07/03/2001 | CA2020595C Menufacturing process of treated steel parts |
| 06/28/2001 | DE10000796A1 Finishing process to consolidate the material of a curved/shaped pipe to carry a motor fuel feed at high pressure has external mechanical clamps to retain the pipe geometry while the interior is subjected to a high fluid pressure |
| 06/20/2001 | CN1300245A Method and apparatus for producing beneficial stresses around apertures by the use of focused stress waves |
| 06/07/2001 | WO2001040525A2 Cold formed flat-rolled steel structural members |
| 06/05/2001 | US6241832 Method for creep-sizing annular-shaped structures and device therefor |
| 05/31/2001 | WO2001038693A1 Pipe expansion device |
| 05/30/2001 | CN1297062A Method for producing superfine texture steel |
| 05/25/2001 | WO2001036699A1 Method for fabricating vehicle components and new use of a precipitation hardenable martensitic stainless steel |
| 05/25/2001 | WO2001036692A1 Method for ultrasonic shot blasting of large-dimensioned annular surfaces on thin parts workpieces |
| 05/24/2001 | US20010001396 Precipitating nitride while allowing the carbon and nitrogen diffusely permeate from a surface by carbonitriding and/or carburization/carbonitriding, and forming martensite phase by rapidly cooling from austenite temperature region of steel |
| 05/23/2001 | EP1101827A1 Process for ultrasonic shotpeening large annular surfaces of thinwalled workpieces |
| 05/15/2001 | US6233500 Optimization and control of microstructure development during hot metal working |
| 05/15/2001 | US6230537 Method and apparatus for producing beneficial stresses around apertures by use of focused stress waves, and improved fatigue life products made by the method |
| 05/03/2001 | WO2001031071A1 Processing of intermetallic alloys |
| 05/03/2001 | DE10030433A1 Production of wear-resistant edge layers on workpieces comprises subjecting component which has been solution annealed and heat treated conventionally to renewed short term solution annealing of edge layer and further heat treating |
| 05/03/2001 | CA2426585A1 Processing of intermetallic alloys |
| 05/01/2001 | US6224686 High-strength valve spring and it's manufacturing method |
| 04/25/2001 | EP1094127A2 Large forging manufacturing process |
| 04/25/2001 | EP1094125A1 Maraging steel excellent in fatigue characteristics and method for producing the same |
| 04/24/2001 | US6221178 Ultra-fine grain steel and method for producing it |
| 04/11/2001 | CN1290763A High strength phosphorated steel and its producing method |
| 04/04/2001 | EP0640149B1 Methods and apparatus for effecting domain refinement of electrical steels |
| 03/15/2001 | DE10012974C1 Production of a hollow profile used in the automobile industry comprises a cold forming a hollow profile green body, heating to a temperature above the austenite temperature |
| 03/08/2001 | WO2001016390A1 Law material for bearing parts |
| 03/06/2001 | US6197129 Method for producing ultrafine-grained materials using repetitive corrugation and straightening |
| 02/27/2001 | US6193816 Steel for springs |
| 02/21/2001 | EP1076725A1 Method and apparatus for straightening turbine casings |
| 02/20/2001 | US6189356 Method and apparatus for peening |
| 02/15/2001 | WO2001010578A1 Hot finish-rolling method for bar steel |
| 02/13/2001 | CA2203522C Method and apparatus for making crankshafts |
| 01/23/2001 | CA2050566C Cold reduced non-aging deep drawing steel and method for producing |
| 01/17/2001 | CN1060814C Producing method for dual phase steel plate having good tonghness and welding proparty |
| 01/09/2001 | US6171546 Powder metallurgical body with compacted surface |
| 01/09/2001 | US6171415 Welding metal product, induction a surface site, establish a wave energy frequency and decreasing internal ultrasonic wave energy magnitude |
| 01/03/2001 | EP1064118A1 Method and apparatus for producing beneficial stresses around apertures by the use of focused stress waves |
| 01/02/2001 | US6168754 Method and apparatus for densifying powder metal preforms |
| 12/27/2000 | EP1063313A1 Steel wire and method of manufacturing the same |
| 12/27/2000 | EP1063033A1 Method for the production of a metallic workpiece, like an element of a vehicle wheel, and corresponding wheel |
| 12/27/2000 | CN1277898A Device for controlling steel processing flow line, and control method therewith |
| 12/14/2000 | WO2000075381A1 High-strength spring and production method therefor |
| 11/30/2000 | DE10018132A1 Carbon steel strengthening process, especially for increasing fatigue strength, comprises working a bainitic carbon steel of specified hardness under tension to produce a specified permanent deformation |
| 11/28/2000 | US6153023 Compressive stresses in exterior surface |
| 11/16/2000 | DE19956895C1 Stress relieving aluminum alloy cylinder head casting, by plastic deformation to create elastic compressive stress in shaft regions facing combustion chambers |
| 11/07/2000 | US6143241 Reducing surface hardness of the cold worked product sufficiently to allow further cold working by heating in less than one minute |
| 11/07/2000 | US6143094 Method of stress inducing transformation of austenite stainless steel and method of producing composite magnetic members |
| 11/02/2000 | WO2000047354B1 Method of manufacturing metallic products such as sheet by cold working and flash annealing |
| 10/26/2000 | WO2000062956A1 Method for massive forming axisymmetric metal components |
| 10/26/2000 | DE19636215C2 Verfahren zur Erhöhung der Lebensdauer von zahntechnischen Teilen A method of increasing the lifetime of dental parts |
| 10/25/2000 | EP1046440A1 Forging method of axial symmetric metallic workpieces |
| 10/24/2000 | US6135857 Method for surface enhancement by fluid jet impact |
| 10/11/2000 | EP1042091A1 Point contact densification of sintered metal powder |
| 10/11/2000 | CN2400456Y Metal material surface mechanical nanometre device |
| 10/10/2000 | US6129794 Method of manufacturing a gear wheel |
| 10/05/2000 | WO2000058043A1 Blank for gunbarrel, method for producing said gunbarrel and gunbarrel |
| 09/28/2000 | WO2000056944A1 Maraging steel excellent in fatigue characteristics and method for producing the same |
| 09/26/2000 | US6123249 Planishing apparatus and method |
| 09/20/2000 | EP1036851A1 High fatigue-strength steel wire and spring, and processes for producing these |
| 09/20/2000 | EP0630417B1 High strength steel sway bars and method of making |
| 09/19/2000 | US6119347 Method for manufacturing balls for bearing and products thereby |
| 09/13/2000 | CN1056343C Stainless steel wire for reinforcing upper part of tire casings |
| 09/06/2000 | CN2394735Y Mechanical steel bar hardening eliminator |
| 08/31/2000 | WO2000050781A1 Rolling bearing and method of machining rolling element of the bearing |
| 08/31/2000 | DE19907827A1 Roughening workpiece surface involves roughening beneath liquid coating using compressed air needle device with needles with conical free surfaces facing workpiece surface |
| 08/30/2000 | EP1031632A2 Production method of ultra fine grain steel |
| 08/29/2000 | US6110419 Point contact densification |
| 08/29/2000 | US6110298 Grain-oriented electrical steel sheet excellent in magnetic characteristics and production process for same |
| 08/24/2000 | WO2000049186A1 Spring of excellent fatigue resisting characteristics and surface treatment method for manufacturing the same |