| Patents for C21D 7 - Modifying the physical properties of iron or steel by deformation (3,811) |
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| 09/24/2008 | CN101269742A High-strength high abrasion-proof transportation chain and manufacturing process |
| 09/18/2008 | WO2008110670A1 Steel for hot working or quenching with a tool having an improved ductility |
| 09/18/2008 | US20080223099 Component With Compressive Residual Stresses, Process For Producing And Apparatus For Generating Compressive Residual Stresses |
| 09/17/2008 | CN101265548A Austenite stainless heat-resistance seamless shot blasting steel pipe |
| 09/17/2008 | CN101265547A High-chromium-manganese cast iron roller and preparation method thereof |
| 09/17/2008 | CN101265513A Austenite stainless heat-resisting seamless steel pipe internal wall shot-blasting strengthening technique and device |
| 09/17/2008 | CN101265512A Reclaiming sealing device for steel pipe internal wall strengthening shot-blasting and sealing method thereof |
| 09/16/2008 | US7425298 Thermal deburring machine |
| 09/12/2008 | WO2008109073A1 Method and apparatus to relieve residual stress or distortion in a heat processed article by applying first heat and then pressure |
| 09/11/2008 | DE102007015222A1 Bearbeitung von Werkstücken zur Verbesserung der Materialeigenschaften Machining of workpieces to improve the material properties |
| 09/10/2008 | CN100417740C Heat source material of high frequency electromagnetic wave heat generating device and its manufacturing method |
| 09/09/2008 | US7422643 induction hardened gears; improved seizure resistance of its tooth flanks; temper hardness of HRC 50 or more at 300 degrees C; steel of C, V, Cr,Ti, Zr, Nb, Ta and Hf; cementite disperses in a martensite parent phase formed by quench hardening induction heating and cooling; pitting resistance |
| 09/09/2008 | CA2460829C Improving collapse resistance of tubing |
| 09/04/2008 | WO2008104155A1 Device and method for surface peening |
| 09/03/2008 | CN201109789Y Intelligent vibration aging controller with fifteen operational keys |
| 09/03/2008 | CN100415903C Nanolizing method for metal surface |
| 08/28/2008 | WO2008102012A1 Method of thermomechanical shaping a final product with very high strength and a product produced thereby |
| 08/28/2008 | US20080202638 High-strength cold-rolled steel sheet, high-strength plated steel sheet, and methods for their manufacture |
| 08/28/2008 | US20080202183 Shot-Peening Process |
| 08/28/2008 | DE102007009471A1 Ultrasonic shotblasting process treatment involves using shot of at least two different sizes and/or of at least two different materials |
| 08/28/2008 | DE102007009470A1 Shot-peening mask for gas turbine gear wheel tooth defines limits of area for differential treatment |
| 08/28/2008 | DE102007007328A1 Verfahren zum Herstellen von Bauteilen durch Verformen eines temperierten Stahlblechteils A method for the production of components by deforming a tempered steel sheet part |
| 08/27/2008 | EP1960483A2 Coating material for protecting metals, especially steel, from corrosion and/or scaling, method for coating metals and metal element |
| 08/27/2008 | CN101250618A Grain ultra-refining method for Fe-32%Ni alloy |
| 08/27/2008 | CN101250617A Sample rotating device for high temperature shot-peening |
| 08/27/2008 | CN101250616A Work-piece heating arrangement for high temperature shot-peening |
| 08/27/2008 | CN100413635C Apparatus for controlling welding stress deformation depending on welding friction extrusion |
| 08/26/2008 | US7416615 Very-high-strength and low-density, hot-rolled steel sheet and manufacturing process |
| 08/20/2008 | EP1958713A1 Method for manufacturing a disk spring, disk spring and friction clutch with such a disk spring |
| 08/13/2008 | CN101240367A On-line laser processing device used for railway steel rail surface toughening treatment |
| 08/13/2008 | CN101240366A Method for processing metal body and apparatus for processing metal body |
| 08/07/2008 | US20080185077 Niobium-titanium composite-based interstitial-free (IF) steel having a distribution of fine precipitates (copper sulfide) of <0.2 mu m; results in dissolved carbon contained in crystal grain boundries; room-temperature aging resistance and bake hardenability; high strength and superior formability |
| 08/07/2008 | US20080184756 Unknown |
| 08/06/2008 | EP1951922A1 Corrosion resistance improved steel sheet for autmotive muffler and method of producing the steel sheet |
| 08/06/2008 | CN101237957A Method and device for the technique of cold microforging any freely formed 3D surfaces |
| 08/05/2008 | USRE40446 Strength-enhancing apparatus for metal part |
| 08/05/2008 | CA2452621C Steel for mechanical construction, process for hot forming a piece of this steel and part thus obtained |
| 07/31/2008 | US20080178969 Ductibility; weldibility; dimensional stability; steel alloy is electric furnace melted, ladle refined, vacuum degassed and argon shield poured in order to ensure cleanliness and quality |
| 07/30/2008 | EP1949986A1 Method of manufacturing a power transmission chain and pretension load device used therein |
| 07/30/2008 | CN101233335A Process for producing motion guide apparatus and motion guide apparatus produced by the process |
| 07/30/2008 | CN101233249A Laser rounding and flattening of cylindrical parts |
| 07/30/2008 | CN100406584C Rotary component whose surface layer is composite nano crystal grain, and its manufacturing method |
| 07/30/2008 | CN100406190C Apparatus and method for forming weld joints having compressive residual stress patterns |
| 07/24/2008 | WO2008089134A2 Stent with improved flexibility and method for making same |
| 07/23/2008 | CN101225460A Fe-Ni alloy transient minimal-stress deformation grain refining method |
| 07/17/2008 | US20080171151 increase the strain tolerance of yttrium-stabilized zirconia barrier layer with an oxidizing bond coat in between, by chemical decomposition of the SiO2, sintering sio2 impurities with HF-containing gas phase of a fluoride ion cleaning process |
| 07/16/2008 | EP1944124A1 Shot- peening process |
| 07/16/2008 | CN101220407A Rolling impact head type ultrasonic impact gun |
| 07/16/2008 | CN101220406A Executing agency and processing method for half wave length ultrasonic surface rolling process |
| 07/16/2008 | CN101220405A Ultrasonic surface rolling process nanoparticlization method and apparatus |
| 07/15/2008 | US7399372 stainless steels having ridges and compressive residual stress, used in vehicle suspensions, gas springs, and vacuums; springs |
| 07/15/2008 | US7399230 Power transmission shaft |
| 07/09/2008 | EP1942203A1 Steel product usable at low temperature and method for production thereof |
| 07/09/2008 | EP1941968A2 Method and apparatus for increasing fatigue notch capability of airfoils |
| 07/09/2008 | EP1699941B1 Crankshaft comprising a combined gear wheel and method for the production and use of said crankshaft |
| 07/09/2008 | CN101218358A Method for obtaining enhanced fatigue strength in welded metal joints and hammer head for use at cold working |
| 07/09/2008 | CN101215625A Deformation heat treatment method for modifying welding seam tissue capability |
| 07/09/2008 | CN101215622A Method for increasing mechanical accessory surface bearing capacity |
| 07/09/2008 | CN100400679C High strength seamless steel pipe and its manufacturing method |
| 07/08/2008 | CA2466159C Chain |
| 07/03/2008 | US20080159901 molybdenum is completely or partially replaced with double the proportion of tungsten; added titanium and/or zirconium which is/are intended to form, substantially during solidification, coarse carbides; reducing the segregated seams |
| 07/03/2008 | DE112006001926T5 Runden und Geraderichten von zylindrischen Teilen mittels Laser Rounds and straightening of cylindrical parts by laser |
| 07/02/2008 | EP1938926A1 Method for determining initial burnishing parameters |
| 07/02/2008 | EP1938925A1 Method for evaluating burnishing element condition |
| 07/02/2008 | EP1937852A1 Method for obtaining enhanced fatigue strength in welded metal joints and hammer head for use at cold working |
| 07/02/2008 | CN101210276A Rolling method for exhaust valve surface |
| 07/02/2008 | CN100398673C Metal sheet surface nano crystallization method using pressure sliding-rolling |
| 06/30/2008 | CA2615620A1 Method and apparatus for increasing fatigue notch capability of airfoils |
| 06/26/2008 | US20080149047 Shot-blasted steam boiler members, steam boiler assemblies or power station components |
| 06/25/2008 | CN100396801C Method and mould for producing face-centered cubic metal plate with fine grain |
| 06/24/2008 | US7389666 Method for treating the surface of a machine element |
| 06/24/2008 | US7389663 Acoustic shot peening method and apparatus |
| 06/19/2008 | US20080141616 Method for Joining Dispersion-Strengthened Alloy |
| 06/19/2008 | DE102006058710A1 Machine tool for processing crank webs radius transition on rod- and main bearings of crankshafts for internal combustion engine, has a processing device, which is led by two orthogonal computer numerical control machine axes |
| 06/18/2008 | EP1932928A1 Densification of coating using laser peening |
| 06/17/2008 | US7387694 Method of making a hardened steel part, especially a roll load-bearing steel part |
| 06/17/2008 | US7387008 Apparatus and method for rolling workpieces |
| 06/11/2008 | EP1930450A2 Component with residual compressive stress |
| 06/11/2008 | EP1929053A1 Method for making a steel part of multiphase microstructure |
| 06/10/2008 | US7384488 Method for producing gears and/or shaft components with superior bending fatigue strength and pitting fatigue life from conventional alloy steels |
| 06/04/2008 | CN101194055A Method of producing nanocrystalline monolithic articles |
| 06/04/2008 | CN100392132C Steel for low temperature and high tenacity structure use and its production method |
| 06/04/2008 | CN100392117C Method for reducing interface residual stress of steel, copper, graphite composite plate |
| 06/04/2008 | CN100392116C Method for post-processing composite board of steel aluminum 7 of graphite solid liquid phases |
| 06/04/2008 | CN100392115C Method for post-processing composite board of steel aluminum 20 of tin solid liquid phases |
| 06/04/2008 | CN100391659C Method of production of surface densified powder metal components |
| 05/27/2008 | CA2363276C Ultrasonic shot-peening process and system for rotor blade attachment ring sockets |
| 05/22/2008 | WO2008058494A1 Autohooping process and autohooping apparatus |
| 05/21/2008 | CN100389229C Boron-Chromium-rare earth co-infiltration process combined with pre-infiltration cold deformation for workpiece |
| 05/15/2008 | US20080110535 High Tensile Strength Steel Material Having Excellent Delayed Fracture Resistance Property, and Method of Manufacturing the Same |
| 05/15/2008 | US20080110533 Non heat treated; high toughness and having preferable weldability; rolling is completed without lowering temperature during manufacturing process; precipitates are fine because of no reheating; low carbon; tensile strength is not less than 640 Mpa and the yield stress is not less than 490 Mpa |
| 05/15/2008 | US20080110227 Method of working metal, metal body obtained by the method and metal-containting ceramic body obtained by the method |
| 05/15/2008 | US20080110226 Method of working metal, metal body obtained by the method and metal-containing ceramic body obtained by the method |
| 05/15/2008 | DE102006053819A1 Production of a steel component used in the chassis construction comprises heating a sheet metal part and hot press quenching the heated sheet metal part |
| 05/08/2008 | DE10014656B4 Kalt/Warmbearbeitungs- und Wärmebehandlungsverfahren für hochlegierten Stahl der Gruppe mit hohem Kohlenstoffgehalt Cold / Warmbearbeitungs- and heat treatment process for high-alloy steel of the group with high carbon content |
| 05/07/2008 | EP1704260B1 Component with internal compressive stress, method for producing said component and device for generating internal compressive stress |
| 05/07/2008 | CN101175606A Ultrasonic peening treatment of assembled components |
| 04/30/2008 | EP1915231A1 Method and device for the technique of cold microforging any freely formed 3-d surfaces |
| 04/24/2008 | US20080092616 Shot peening methods and units |
| 04/23/2008 | EP1914323A2 Method for manufacturing residual compressive stress by shot peening |