| Patents for B21D 26 - Shaping without cutting otherwise than by using rigid devices or tools or yieldable or resilient pads, e.g. shaping by applying fluid pressure or magnetic forces (5,593) |
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| 09/05/1990 | CN1009481B Assembling camshaft |
| 09/04/1990 | US4953778 Method of making torsional vibration damper having a roll spun housing |
| 08/29/1990 | EP0281813B1 Casing for a medical, especially a dental instrument |
| 08/28/1990 | US4951492 Hydraulic expansion of tubing |
| 08/28/1990 | US4951491 Apparatus and method for superplastic forming |
| 08/14/1990 | US4947667 Method and apparatus for reforming a container |
| 07/05/1990 | DE3928241C1 Explosion chamber for metal processing - has steel upper section with impact absorbing lining |
| 06/27/1990 | EP0374735A2 Optical monitor for superplastic forming |
| 06/27/1990 | EP0374407A2 Assembling method |
| 06/27/1990 | EP0374394A2 Assembled shaft |
| 06/26/1990 | US4936128 Control of cavitation in superplastic forming through use of acoustic emission |
| 06/13/1990 | EP0372360A2 Method of making tubular construction parts |
| 06/13/1990 | DE3840938A1 Method for the production of tubular components |
| 06/07/1990 | DE3840939A1 Method for the production of flat components |
| 06/06/1990 | EP0371834A1 Method and device for fastening sliding parts onto piston heads of hydraulic pumps by electromagnetic shaping |
| 06/06/1990 | EP0371018A1 A method of forming metal. |
| 05/29/1990 | US4928509 Method for manufacturing a pipe with projections |
| 05/23/1990 | CN1042321A Hydraulic expansion method and its installation for ring-shape work pieces |
| 05/08/1990 | US4922785 Tubular camshaft assemblies and the like |
| 04/18/1990 | CN1007592B Process for preparing sculpture of cold-forging metal |
| 04/17/1990 | US4916928 Stops for curved SPF/DB sandwich fabrication |
| 04/10/1990 | US4916027 Stacks of diffusion bonded metal truss cores and sheets |
| 03/21/1990 | CN1040525A Development method of geometrically undevelopable curved surface and its application in processing of curved surface |
| 03/14/1990 | EP0358523A1 Domed structures and a method of making them by superplastic forming and diffusion bonding |
| 02/20/1990 | US4901552 Apparatus and a method for fabricating superplastically formed structures |
| 01/18/1990 | DE3923358A1 Method and press for producing cold-formed tubular fittings - uses tubular blank subjected to mechanical axial stress and hydraulic internal pressure |
| 01/17/1990 | CN1038779A Externally feeding type hydraulic device for swelling and strengthening protective ring |
| 01/10/1990 | EP0350329A1 Process for producing composite metallic structures |
| 01/03/1990 | CN2050354U Ball cell shapped by one section cylinder and frustum through explosion |
| 12/26/1989 | US4888973 Heater for superplastic forming of metals |
| 12/20/1989 | EP0347369A2 Method and apparatus for hydraulically enlarging hollow profiles |
| 12/20/1989 | CN2049566U Hydraulic tube expander |
| 12/13/1989 | CN1037856A Curved superplastic forming / diffusion bonding sandwich fabricated structures |
| 12/05/1989 | CA1263692A1 Continuous casting of metal in an electromagnetic mold |
| 11/28/1989 | US4882823 For hollow structures |
| 11/08/1989 | EP0341168A1 Method and device for forming a metallic foil |
| 11/02/1989 | WO1989010218A1 Curved superplastic forming/diffusion bonding sandwich fabricated structures |
| 11/01/1989 | CN1036718A Hydro-forging method of complex workpiece |
| 10/18/1989 | CN1036347A Method for making assembled crank-shafts by enlarging sleeves pivoted in seperated plugs |
| 10/17/1989 | US4874596 Production of crystalline structures |
| 10/10/1989 | US4872369 Torsional vibration damper having a roll spun housing and other improvements |
| 10/04/1989 | CN1035966A Making technique of cold forged metal sculpture works |
| 09/19/1989 | US4867004 Small-diameter and long-length expansion sensor |
| 09/05/1989 | US4863460 Suture rings for heart valves |
| 08/16/1989 | EP0328328A2 Apparatus and a method for fabricating superplastically formed structures |
| 08/16/1989 | EP0328010A1 Composite camshaft and its manufacturing process |
| 07/26/1989 | CN1034153A Line type ram used in a pressure reducing type hydraulic expanding protective ring unit |
| 07/26/1989 | CN1034152A Making method of closed-top in pairs by means of expanding |
| 07/19/1989 | EP0324499A1 Method for producing a composite shaft |
| 07/12/1989 | EP0216828B1 Device for the treatment of work pieces |
| 07/12/1989 | CN2040816U Tube expander |
| 07/12/1989 | CN1033760A Sealed negative-camber moulding method using high-pressure liquid |
| 06/27/1989 | US4841627 Apparatus for making tubular camshaft assemblies |
| 06/21/1989 | EP0320789A2 Connecting method |
| 06/20/1989 | US4840053 Method for manufacturing a pipe with projections |
| 06/06/1989 | US4835832 Method of assembling tubular shaft assemblies |
| 06/06/1989 | CA1255341A1 Process for forming removable fluid tight sealing connections for high pressure ducts |
| 06/06/1989 | CA1255080A1 Manufacturing process of single-faced integrated circuit panels |
| 05/30/1989 | US4833768 Curved SPF/DB sandwich fabrication |
| 05/16/1989 | US4829803 Method of forming box-like frame members |
| 05/10/1989 | EP0315136A1 Method of manufacturing crank shafts made of several parts by expanding sleeves engaged in divided crank pins |
| 05/09/1989 | US4827747 Method for producing a bellows with oval cross section and apparatus for carrying out the method |
| 05/09/1989 | US4827585 Cam shaft manufacturing method and device used therein |
| 04/25/1989 | US4824373 Swaged metal denture base |
| 04/18/1989 | US4821546 Two-step superplastic forming method |
| 03/22/1989 | EP0307473A1 Discharge device for magnetopulse processing and welding of metals |
| 03/14/1989 | US4811890 Method of eliminating core distortion in diffusion bonded and uperplastically formed structures |
| 03/14/1989 | US4811582 Strain rate control of superplastic forming |
| 03/08/1989 | CN1031493A Production method of spherical pressure container |
| 03/01/1989 | EP0305061A2 Method of forming reinforced box-section frame members |
| 02/28/1989 | US4807351 Method for attaching an end-fitting to a drive shaft tube |
| 02/08/1989 | EP0302283A2 Torsional vibration damper having a roll spun housing and other improvements |
| 02/01/1989 | CN1030712A New method for substantially increasing the speed of expansive forming |
| 02/01/1989 | CN1030711A Method of forming box-like frame members |
| 01/05/1989 | DE3720901A1 Method and forming press for the production of a can-like metal container with tapered side walls |
| 12/14/1988 | CN88103053A Hollow shaft fixing drive element with axially different property of stoff to it by expanding itself |
| 12/07/1988 | EP0294034A2 Method of forming box-like frame members |
| 12/07/1988 | EP0293652A1 Expension mandrel having a small diameter and a great length |
| 12/06/1988 | US4789094 Device for alignment of cylindrical workpieces for magnetic-discharge welding |
| 12/06/1988 | US4788843 Method and apparatus for hydraulically forming a tubular body |
| 11/30/1988 | EP0292795A1 Hollow shaft with driving elements affixed by means of expansion and with axially differing material properties |
| 11/10/1988 | DE3726793C1 Device for forming and joining a material in the form of a hollow body or sheet-metal formed part provided with external reinforcements |
| 11/02/1988 | EP0288705A2 Method of making complicated sheet metal parts, and device for carrying out the method |
| 10/20/1988 | WO1988007899A1 A method of forming metal |
| 10/13/1988 | DE3710565A1 Verfahren zum einpressen von rohren durch elektrische zuendung sowie einrichtung fuer die durchfuehrung des verfahrens A method for press-fit of tubes by electric ignition and device for carrying out the method |
| 10/04/1988 | US4774826 Method of making a container from a material exhibiting superplasticity |
| 09/22/1988 | WO1988006937A1 Discharge device for magnetopulse processing and welding of metals |
| 09/14/1988 | EP0282166A1 Assembled camshafts. |
| 09/14/1988 | EP0281813A1 Casing for a medical, especially a dental instrument |
| 09/08/1988 | DE3716176A1 Method and device for reshaping hollow bodies, and use of the method or the device and can body |
| 08/25/1988 | WO1988006248A1 Hollow shafts and a process for their manufacture |
| 08/17/1988 | EP0278676A1 Cam shaft manufacturing method and device used therein |
| 08/17/1988 | EP0278292A1 Hollow shaft and method of manufacturing it |
| 08/10/1988 | EP0216809B1 Gas feeding device to admit a combustible gas mixture consisting of at least two components |
| 08/09/1988 | US4761982 Method and apparatus for forming a heat exchanger turbulator and tube |
| 08/09/1988 | US4761870 Method for making a camshaft |
| 08/02/1988 | US4760630 Thermal deburring system |
| 07/26/1988 | US4759111 Method of forming reinforced box-selection frame members |
| 07/13/1988 | CN87105773A Manufactruing method of spherical pressure container by exploding and expanding a container in form of frustum of cone and with multiple nodes |
| 07/06/1988 | CN87205452U Hydraulic bidirectional self-lock sealing casing roller |