| Patents for B21H 1 - Making articles shaped as bodies of revolution (2,244) |
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| 06/29/2011 | CN201880835U Feeding ball rolling device |
| 06/29/2011 | CN101480688B Three-wheel roll forging machine for ring piece |
| 06/22/2011 | CN101712063B Rolling forming method of large and medium scale stainless steel solid disk forgings |
| 06/21/2011 | US7963016 Circular-shaped metal structure, method of fabricating the same, and apparatus for fabricating the same |
| 06/15/2011 | CN201862722U Novel bearing ring rolling-broaching tool |
| 06/15/2011 | CN102099134A Method and apparatus for producing a circular cylindrical body comprising a workable mass and having internal helical recesses |
| 06/15/2011 | CN102091750A Ball forming mechanism of steel ball rolling mill with quickly assembled ball rolling rollers |
| 06/15/2011 | CN102091749A Axial rolling device for vertical ring rolling machine |
| 06/08/2011 | EP1346801B1 Apparatus for loading and unloading a metal ring |
| 06/08/2011 | CN102085556A Roll forming method of GH4033 high-temperature alloy thin-wall ring piece |
| 06/08/2011 | CN102085555A Roll forming method of TC25 titanium alloy thin-walled ring forging |
| 06/08/2011 | CN102085554A Roll-forming method of 0Cr12 stainless steel thin-wall ring piece |
| 06/08/2011 | CN102085553A Roll forming method of 0Cr19Ni9 stainless steel thin-walled ring forging |
| 06/08/2011 | CN102085552A Roll forming method of 2A70 aluminum alloy thin-walled ring forging |
| 06/08/2011 | CN102085551A Roll forming method of iron-based high-temperature alloy high cylinder ring forging |
| 06/08/2011 | CN102085550A Rolling molding method for nickel-based high-temperature alloy high cylindrical ring forged piece |
| 06/08/2011 | CN102085549A Roll forming method of aluminum alloy high cylindrical ring forging |
| 06/08/2011 | CN102085548A Roll forming method of titanium alloy high cylindrical ring forging |
| 06/01/2011 | EP1588867B1 Unequally thick rim, and method of manufacturing the rim |
| 06/01/2011 | DE102009056038A1 Method for manufacturing bearing ring for roller bearing, particularly for thin-section bearing, involves rolling wire and bending wire in partial ring- or ring shape |
| 06/01/2011 | CN201848496U Hoop grinding machine |
| 05/26/2011 | WO2011061444A2 Method for manufacturing a tubular metal part |
| 05/25/2011 | CN201841230U Automatic lifting and landing device for core roller of ring rolling machine |
| 05/25/2011 | CN201841229U Numerical control special-shaped cross section looping mill |
| 05/25/2011 | CN201841228U Main roller of numerical-controlled ring rolling mill for special-shaped end sections |
| 05/19/2011 | US20110113846 Method and device for producing a circularly cylindrical body, which consists of plastics material, with internally disposed helical recesses |
| 05/18/2011 | EP1177610B1 Method for producing a shaft and a device containing a shaft of this type |
| 05/11/2011 | CN201823856U Combined type cross wedge rolling front wedge module capable of being replaced quickly |
| 05/11/2011 | CN101758153B Rolling formation method of large and medium stainless steel hollow disc-shaped forge piece |
| 05/11/2011 | CN101758152B Rolling formation method of large and medium hollow titanium alloy disc-shaped forge piece |
| 05/10/2011 | US7937835 Composite ceramic substrate for micro-fluid ejection head |
| 05/10/2011 | CA2679751C Method of spinning multiple parts |
| 05/04/2011 | EP2316589A1 Device and milling machine for forge rolling a workpiece |
| 05/04/2011 | CN201815612U Rolling and forging device for producing copper balls |
| 05/04/2011 | CN102039360A Safe, airtight and low-noise feeding equipment of copper balls during skew rolling |
| 05/04/2011 | CN102039359A Vertical numerically-controlled ring cold rolling machine tool |
| 04/27/2011 | EP2313218A1 Method and apparatus for producing a circular cylindrical body comprising a workable mass and having internal helical recesses |
| 04/27/2011 | CN201807690U Cold ring rolling mill for refined bearing ring blanks |
| 04/27/2011 | CN201807689U Holding roller mechanism for ultra-large ring rolling machine |
| 04/27/2011 | CN102036767A Circular rolling mill with shaping roller |
| 04/27/2011 | CN102029342A Method for rolling and forming TC11 titanium alloy thin-walled rings |
| 04/27/2011 | CN102029341A Roll-forming method for 15CrMo steel thin-wall ring member |
| 04/27/2011 | CN102029340A Rolling forming method for 5CrNiMo steel thin-wall ring |
| 04/27/2011 | CN102029339A Rolling and forming method for 0Cr25Ni20Mo2 stainless steel thin-wall ring |
| 04/27/2011 | CN102029338A Rolling and forming method for 0Cr25Ni20 stainless steel thin-wall ring |
| 04/20/2011 | CN102019333A Rolling and forming method of cobalt-base superalloy high cylindrical ring forging |
| 04/20/2011 | CN101695734B Guiding device of upper tapered roller box body of ring rolling machine |
| 04/20/2011 | CN101279350B Horizontal type machine for rolling ring of flange |
| 04/13/2011 | CN201791881U Main transmission input shaft device for ring rolling machine |
| 04/13/2011 | CN102009113A Novel bearing ring rolling and reaming tool |
| 04/13/2011 | CN102009112A Method for thickening annular outer edge of circular plate material |
| 04/13/2011 | CN102009111A Hobbing cutter centering holding device |
| 04/06/2011 | CN102000752A Bispherical ring rolling forming method |
| 03/23/2011 | CN201773307U Rolling wheel numerical control system |
| 03/23/2011 | CN201768859U Cross wedge rolling mould for connecting rod forge piece blank |
| 03/23/2011 | CN201768858U Main transmission output shaft apparatus for numerical control rolling machine |
| 03/23/2011 | CN101439384B Technique for rolling multiple-variety multiple-station spline threaded shaft |
| 03/17/2011 | US20110061513 Musical instrument and method of forming a surface thereof |
| 02/16/2011 | EP1648637B1 Method of flow forming a metal part |
| 02/16/2011 | CN101972778A Method for determining stable formation domain for radial-axial ring rolling |
| 02/09/2011 | CN201735716U Rolling device for surface of vehicular gas spring piston rod |
| 02/09/2011 | CN101970150A Method of manufacturing outer ring, outer ring for double row angular contact bearing, double row angular contact bearing, and bearing device for wheel |
| 02/09/2011 | CN101410193B Ring rolling mill and ring rolling method |
| 02/03/2011 | WO2011012070A1 Roll forming method for wheel spoke |
| 02/03/2011 | US20110027547 Methods of making reactive composite materials and resulting products |
| 02/02/2011 | CN201728316U Balling mechanism of steel ball rolling machine |
| 02/02/2011 | CN201728315U Rotary rolling device of integral axle head for transportation semitrailer |
| 01/27/2011 | US20110016942 Shaping station of a wire shaping machine with annular tool holder arm |
| 01/26/2011 | CN201720371U Rolling forming die for manufacturing auto transmission synchronous sliding sleeve blank |
| 01/26/2011 | CN201720370U Milling wheel for ring milling machine |
| 01/26/2011 | CN201720369U Automobile rear axle bevel gear blank rolling forming die |
| 01/20/2011 | DE202010014708U1 Axial-/Radialringwalzwerk Axial / radial ring rolling mill |
| 01/19/2011 | EP2274118A1 Circular rolling mill with shaping roller |
| 01/19/2011 | CN201711474U Drive roll supporting adjustment device of ultra-large type ring rolling machine |
| 01/13/2011 | DE112009000609T5 Verfahren zur Herstellung eines Außenrings, Außenring für zweireihiges Schräglager, zweireihiges Schräglager und Lagervorrichtung für Räder Process for the preparation of an outer ring, outer ring of double row angular contact bearings, double row angular contact bearings and bearing device for wheels |
| 01/12/2011 | CN201702307U Improved retainer plate mechanism |
| 01/12/2011 | CN201702304U Improvement of fine rolling and expanding mechanism of broaching machine |
| 01/12/2011 | CN201702303U Annular piece axial positioning device for a ring rolling device with a horizontally arranged roller |
| 01/05/2011 | EP2268430A1 Method of producing a stepped shaft |
| 01/05/2011 | CN101934334A Balling mechanism of steel ball rolling machine |
| 01/05/2011 | CN101934333A Numerically-controlled special-shaped cross-section ring-shaped rolling mill |
| 01/05/2011 | CN101934332A Main roll of numerical control special end section ring mill |
| 12/29/2010 | CN201684875U Cross wedge rolling mill special mould with blade |
| 12/22/2010 | CN101920298A Automatic hoisting, rising and falling device for core roller of ring rolling machine |
| 12/15/2010 | CN201669359U Rolling device of ring rolling machine |
| 12/15/2010 | CN101913058A Blank-making rolling method for synchronous sliding sleeve of automotive transmission |
| 12/15/2010 | CN101222989B Method and device for producing metal rings |
| 12/01/2010 | CN201659231U Novel bottle cap-rolling device |
| 12/01/2010 | CN101903667A Double-row angular bearing, bearing device for wheel, method of producing outer ring, and method of producing inner ring |
| 12/01/2010 | CN101898223A Rolling and molding device of blank roller pair |
| 11/30/2010 | CA2531435C Method of flow forming a metal part |
| 11/24/2010 | CN101590509B Matched structure for guide plate and guide plate seat of ball forming mechanism of bar ball rolling machine |
| 11/17/2010 | CN101885028A Roll forming method for high-neck flange |
| 11/17/2010 | CN101337256B Aluminum alloy ring piece rolling technique and device |
| 11/03/2010 | CN201618824U Cold rolling machine tool of medium-large-sized numerical control ring piece |
| 11/03/2010 | CN201618724U An anti-cone roller for producing bearing rings |
| 11/03/2010 | CN101875093A Method for processing non-ferrous alloy rings |
| 10/28/2010 | DE102009018413A1 Cam shaft for internal-combustion engine, has shaft pipe and multiple cams with respective depressing opening, by which respective cam is attached to shaft pipe |
| 10/27/2010 | CN101869909A Machining technology for cross-wedge-rolling shaft blank |
| 10/20/2010 | CN201609745U 辗环机上锥辊箱体的导向装置 Ring Rolling Machine cone roller guides cabinet |