| Patents for B21J 1 - Preparing metal stock (1,586) |
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| 02/08/2012 | CN102343410A Separate blanking method of square ingots of small free forged pieces |
| 02/01/2012 | CN1940115B 高强度高韧性可焊钢以及由其制造构件的方法 Weldable steel high strength and toughness, and a method of its manufacture components |
| 02/01/2012 | CN102335704A Method for forging and forming structural parts of wheel chair rack |
| 01/25/2012 | CN102330004A Manufacturing method for aluminum alloy die forgings |
| 01/18/2012 | CN202114195U Hot forging fuel heating and transferring device |
| 01/18/2012 | CN202114194U Forged piece waste heat temperature control air cooling device |
| 01/18/2012 | CN102319984A Method for manufacturing aluminum sheet circle blank for cold extrusion by aluminum rod |
| 01/18/2012 | CN102319868A Forging molding method of large-scale aluminum alloy conical ring |
| 01/18/2012 | CN102319845A Manufacturing process of forging stock of steel forging piece for oil extraction equipment in deep sea |
| 01/04/2012 | CN101862802B Preforging die for automobile rear lower control arm and forging method thereof |
| 12/28/2011 | CN102294423A 锻压件的冷锻-温锻数控成形方法 Forging forging parts - warm forging CNC forming method |
| 12/28/2011 | CN101628312B 高硅铝合金斜盘模锻工艺与模具 High-silicon aluminum swash plate and die forging process |
| 12/21/2011 | CN102284838A 重型卡车套管叉锻件制造工艺 Truck sleeve fork forging manufacturing process |
| 12/21/2011 | CN102284670A 重卡平衡轴锻造方法 Heavy card balance shaft forging method |
| 12/21/2011 | CN102284664A 变型腔轴对称件半固态成形模具及成形方法 Axisymmetric cavity becomes semi-solid forming mold and molding method pieces |
| 12/21/2011 | CN101786545B 一种金属棒料输送装置及应用方法 One kind of metal bar conveyors and application methods |
| 12/21/2011 | CN101724781B 一种含铌定膨胀合金及其制造方法 An expansive set of niobium-containing alloys and manufacturing method |
| 12/14/2011 | CN102281965A 链轮拼合轮缘的制造方法及链轮拼合轮缘 Split sprocket wheel rim manufacturing methods and split rim |
| 12/14/2011 | CN102274922A 一种内燃机挺柱的冷镦制造方法 Cold heading method of manufacturing an internal combustion engine tappet |
| 12/07/2011 | CN102266901A 降低tc4钛合金叶片变形抗力的锻造方法 Reduce tc4 titanium blade deformation resistance of forging method |
| 12/07/2011 | CN102266900A 用于制造锻压的钢板成型构件的方法和热成型装置 Method for manufacturing a wrought steel plate member and thermoforming apparatus |
| 12/01/2011 | WO2011073745A3 Method and device for producing fine-grained, polycrystalline material or workpieces from elongated or tubular semi-finished products |
| 11/30/2011 | CN101695806B 汽车变速器倒档齿轮制造工艺 Automobile transmission reverse gear manufacturing process |
| 11/23/2011 | EP2388084A1 Forging method, molding device for forgings, and tripod uniform motion universal joint |
| 11/23/2011 | CN102256723A Forging method, molding device for forgings, and tripod uniform motion universal joint |
| 11/23/2011 | CN102248367A Production method and production device for connecting rod |
| 11/23/2011 | CN102248102A Method for integrally forming aluminum alloy equal-diameter three-way member |
| 11/23/2011 | CN102248100A Automobile walking component and manufacturing of the same |
| 11/23/2011 | CN102248099A Hot forging fuel heating and conveying device |
| 11/23/2011 | CN101941039B High-strength aluminum alloy isothermal direction-change open die forging method and device |
| 11/23/2011 | CN101748344B Railway track welded steel and manufacturing technology thereof |
| 11/23/2011 | CN101653814B Double-expansion process of super-large-inside-diameter forgeable pieces |
| 11/16/2011 | CN102240772A Forming method of single throw crankshaft forgings |
| 11/16/2011 | CN102240762A Forging and forming process of complex circular forged piece in specific metal flow line |
| 11/16/2011 | CN102240760A Process for ring rolling deep spigot type complex ring-shaped forged piece |
| 11/02/2011 | CN102230097A Preparation method of titanium alloy bars |
| 11/02/2011 | CN101829749B Approximate isothermal forging method of BT25 two-phase titanium alloy disk forge piece |
| 11/02/2011 | CN101722406B Method for manufacturing pin shaft through forging |
| 10/19/2011 | CN102218641A Manufacturing method of metal fan frame |
| 10/19/2011 | CN101912935B Heating method for forging based on P20+Ni die steel |
| 10/12/2011 | CN102211131A Square steel sand burial cooling process |
| 09/28/2011 | CN102198481A Technology for integrally forging valve with flange |
| 09/22/2011 | WO2011115298A1 Stainless steel wire for warm forging, method for producing same and metal forming method |
| 09/21/2011 | CN102189208A Closed forging technology of convex face flange |
| 09/21/2011 | CN102189203A Method for rolling hard aluminum ring pieces |
| 09/07/2011 | CN102172768A Forging process method for sblank of automobile transmission flange forgings |
| 09/07/2011 | CN102172756A Thermoforming method for TC11 alloy convergent section |
| 09/07/2011 | CN102172755A Connecting rod manufacturing method capable of improving surface quality of connecting rod of medium-speed/high-speed diesel engine |
| 09/07/2011 | CN102172754A Thixotropic plastic forming method for metal alloys |
| 09/07/2011 | CN102172750A Magnesium alloy construction member step temperature forming method |
| 08/31/2011 | CN101736658B High-nitrogen austenitic steel high-speed railway frog and manufacturing method thereof |
| 08/24/2011 | CN201940519U 一种滚筒提升式氧化皮清理机 A drum-type scale to enhance the cleaning machine |
| 08/24/2011 | CN101406925B Method for device for forming metal micro-thixotropy in semi-solid state assistant by supersonic vibration |
| 08/23/2011 | DE202011101652U1 Vorrichtung zum Erwärmen von Haltemitteln für Gesenke An apparatus for heating of holding means for dies |
| 08/17/2011 | CN201933107U Isothermal annealing device utilizing tooth billet forging residual heat |
| 08/17/2011 | CN102151775A Blind hole gear blank precise forming method |
| 08/17/2011 | CN101708527B Forging technology of particle-reinforced aluminum-based composite material |
| 08/17/2011 | CN101670417B Steering knuckle forging molding process of heavy truck |
| 08/11/2011 | WO2011096212A1 Forged billet, process for production of forged billet, and process for production of wheel |
| 08/11/2011 | WO2011096178A1 Forged billet, wheel made from light metal, and processes for production of those products |
| 08/04/2011 | WO2011091643A1 Material shearing and clamping device for upset machine, working method of the material shearing and clamping device |
| 08/03/2011 | EP2350746A1 Method of making a bottom plate for a watch |
| 08/03/2011 | CN201913125U 平面分模曲轴终锻前的滚挤制坯模具 Roll extrusion billet mold parting plane crankshaft forging before final |
| 08/03/2011 | CN102139337A Dual-controlled composite forming method for casting and forging of magnesium alloy |
| 08/03/2011 | CN101492788B Microalloy non-hardened and tempered steel and controlled forging and cooling process |
| 07/20/2011 | CN101648251B Temperature control device and temperature control method of movable blank inside intermediate-frequency diathermanous furnace |
| 07/13/2011 | CN101767179B Method for forging screw and nut |
| 07/06/2011 | CN101190453B Press forging method |
| 06/29/2011 | CN101716645B Method for controlling isothermal precision formed forging flow line of complicated disk cake forging |
| 06/22/2011 | CN201871657U Steel rail heater for realizing uniform heating temperature |
| 06/22/2011 | CN102105604A Manufacturing method for machine parts having superior rolling-contact fatigue life |
| 06/16/2011 | WO2011071196A1 Titanium alloy bolt manufacturing facility and method for manufacturing titanium alloy bolt using same |
| 06/08/2011 | CN102085559A Method for producing light alloy vehicle wheel |
| 06/08/2011 | CN101695736B Method for making titanium alloy diaphragm plate forged piece |
| 06/08/2011 | CN101543948B Processing technology of Ti5Mo5V2Cr3Al alloy |
| 06/01/2011 | CN101705437B Heat-resistant stainless steel with high-lasting strength and manufacturing method thereof |
| 06/01/2011 | CN101693980B Flat steel and manufacture method thereof |
| 05/18/2011 | EP2322295A2 Metal manufacturing method, apparatus of the same and metal object |
| 05/18/2011 | CN101695739B Forging process of large tee and large skew tee |
| 05/11/2011 | CN101658914B Surface forging maintenance process of mold for the production of graphite cast iron pipe by centrifugal method |
| 05/11/2011 | CN101440462B Economical long service life material for mechanical press forging die and manufacturing method thereof |
| 05/11/2011 | CN101254518B 1Mn18Cr18N steel guard ring forgeable piece forging technique for electric generating set |
| 05/05/2011 | WO2011051496A1 Method for producing a hollow body |
| 05/04/2011 | CN102039363A Method for manufacturing overlong internally thickened drill rod |
| 05/04/2011 | CN102039361A Composite extrusion forge forming method for automobile flange fork |
| 05/04/2011 | CN101774107B Method for forging Venturi tubes |
| 05/04/2011 | CN101690965B Hot extrusion forming process of half-shaft casings and special device |
| 04/27/2011 | CN102029352A Method for manufacturing pressboard for rail wagon |
| 04/20/2011 | CN102019534A Manufacturing method of valve part |
| 04/20/2011 | CN102019338A Punching method for forming integrated top cover |
| 04/20/2011 | CN102019337A Rolling method for shaping integral top cover |
| 04/20/2011 | CN102019335A Cold forging processing method of hardened and tempered structural steel |
| 04/13/2011 | CN102011852A Method for processing transmission gear ring |
| 04/13/2011 | CN101760682B Preparation method of aluminum alloy semi-ring for fairing of launch vehicle |
| 04/07/2011 | WO2011005722A3 Application of electric induction energy for manufacture of irregularly shaped shafts with cylindrical components including non-unitarily forged crankshafts and camshafts |
| 03/30/2011 | CN101353762B Silver copper composite deep punch type ferrite antibiotic stainless steel, steel plate and manufacturing method thereof |
| 03/30/2011 | CN101270451B Plastic mold steel and method for manufacturing same |
| 03/24/2011 | DE102009042026A1 Verfahren zum Vorbehandeln und Bereitstellen eines Blechteils Method for pretreating and providing a sheet metal part |
| 03/23/2011 | CN101987344A Method for forging nuclear power equipment pressure vessel large end sealing plate blank |
| 03/23/2011 | CN101987343A Forging method of conical cylinder body of nuclear power equipment |