| Patents for B21D 28 - Shaping by press-cutting; Perforating (12,707) |
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| 09/13/1994 | US5346454 Turret punch press |
| 09/07/1994 | EP0614261A1 Method for manufacturing a stator of a stepping motor |
| 09/07/1994 | EP0481971B1 Signature analysis control system for a stamping press |
| 09/07/1994 | EP0344190B1 Method for sequentially continuous machining of sheet pieces from sheet material |
| 08/31/1994 | EP0612275A1 Improving fatigue life of holes |
| 08/30/1994 | US5342276 Turret punch press with a die exchanging device |
| 08/24/1994 | EP0611615A1 Method to produce gearing, in particular toothed quadrants |
| 08/18/1994 | DE4322063C1 Method and device for cutting out a cutout from a wall of a hollow item produced according to the internal high-pressure forming process |
| 08/17/1994 | EP0611188A1 Punching die |
| 08/17/1994 | CN1025658C Die for notching metal tube |
| 08/10/1994 | EP0609520A1 Perforator for metal plate |
| 08/09/1994 | US5335702 Cutting and forming device for lead frame for the semiconductor device |
| 08/04/1994 | DE4402427A1 Punching machine |
| 08/02/1994 | US5333525 Apparatus and method for producing motor laminations from a blank |
| 07/27/1994 | EP0607498A1 Method for operating a cutting press and cutting press |
| 07/27/1994 | EP0607225A1 Apparatus to determine the operational effectiveness of a machine tool and method therefor. |
| 07/27/1994 | EP0493411B1 Method and apparatus for aligning mating form tools |
| 07/27/1994 | CN1089890A Device at a die cutter |
| 07/26/1994 | US5331831 Hardware sensor |
| 07/26/1994 | CA2020728C Adjustable guide for rotating cylindrical member |
| 07/19/1994 | US5330241 Hand apparatus |
| 07/19/1994 | US5329835 Adjustable length punch set assembly |
| 07/05/1994 | US5326085 Device for supporting slabs during the phases of punching and in general operations of plastic deformation |
| 07/05/1994 | US5325755 Punch press |
| 06/29/1994 | EP0603366A1 Assembly line for producing steel coffers for ceiling and/wall constructions from sheet metal plates |
| 06/28/1994 | CA2042830C Punch guide |
| 06/22/1994 | EP0603098A1 Magneto-repulsion punching with dynamic damping |
| 06/22/1994 | EP0491727B1 Combination punch press and laser cutting machine |
| 06/21/1994 | US5321969 Stamping and forming machine having adjustable stroke rams |
| 06/14/1994 | US5320595 Punch press and a tool magazine for the press |
| 06/14/1994 | US5320013 Method of blanking metal foil on piezoelectric actuator operated press, and die sets for practicing the method |
| 06/08/1994 | EP0600672A2 A trimming and forming machine and a die-punch set for the same |
| 06/07/1994 | US5318496 Method and apparatus for automatically exchanging a punch for a turret punch press |
| 06/07/1994 | US5317894 Quick change insert system |
| 06/07/1994 | US5317893 Single shaft punch press |
| 06/07/1994 | CA2006040C Mechanical force enhancer |
| 06/01/1994 | EP0599782A1 Method and machine for making expanded metal |
| 05/31/1994 | USRE34621 Self equalizing piercing machine |
| 05/31/1994 | US5315857 Stamping and forming machine having improved couplings |
| 05/26/1994 | WO1994011639A1 High-speed and high-load cylinder device |
| 05/26/1994 | WO1994011597A1 Metallic wall framing, method and apparatus for producing same |
| 05/26/1994 | WO1994011130A1 Forming openings in pipes |
| 05/24/1994 | US5313865 Turret station restoration apparatus |
| 05/11/1994 | EP0596016A1 Method and apparatus for reforming can bottom to provide improved strength. |
| 05/11/1994 | EP0592463A4 Assembly apparatus |
| 05/11/1994 | DE4237825A1 Press or punch for flat material esp. metal plate - has positioning arrangement with carriage having transverse guide on which placing rail can travel |
| 05/10/1994 | USRE34602 Multistroke punching method and apparatus therefor |
| 05/04/1994 | EP0594654A1 Machine tool with curved drive, especially for stamping and shaping the connecting pins of integrated circuits. |
| 05/04/1994 | EP0594652A1 Machine tool with curved drive, especially for stamping and shaping the connecting pins of integrated circuits. |
| 05/03/1994 | US5307715 Angle punching die arrangement |
| 04/28/1994 | WO1994008740A1 Method and machine for producing details from a sheet of metal |
| 04/28/1994 | DE4235972A1 Cutting tool for stamping sheets - includes two relatively movable upper and lower parts with punches and associated dies for stamping outer edge and openings of blanked part |
| 04/28/1994 | CA2145417A1 Method and machine for producing details from a sheet of metal |
| 04/27/1994 | EP0593894A1 Tool for a punch press equipped with a laser welding apparatus |
| 04/21/1994 | DE4334203A1 Tool forming rim holes in heat exchanger headers - has die axially insertable into header consisting of axially spaced support sections and coupling sections |
| 04/20/1994 | EP0592463A1 Assembly apparatus. |
| 04/19/1994 | US5304262 Controlled hardness, resistance to corrosion and wear |
| 04/14/1994 | WO1994007663A1 Adjustable length punch set assembly |
| 04/14/1994 | WO1994007625A1 Locking ring stripper plate assembly |
| 04/14/1994 | WO1994007624A1 Rotary apparatus with moveable die |
| 04/14/1994 | DE4334417A1 Press tool for punching holes - with an elastic tubular element positioning the punch prior to the punching operation |
| 04/13/1994 | CN2161401Y Manual shearing machine |
| 04/13/1994 | CN2161392Y Perforating die set of window aluminium squeezing type |
| 04/12/1994 | US5301585 Punch pressing machine |
| 04/12/1994 | US5301580 Locking ring stripper plate assembly |
| 04/05/1994 | US5299478 Method for controlling punch press noise |
| 04/05/1994 | US5299477 Method of selecting a tool in a punching press machine |
| 03/31/1994 | WO1994006604A1 Perforated metal sheet, its manufacture method, supporter and plate of cell using the sheet |
| 03/31/1994 | WO1994001234A3 Assembly line for producing steel coffers for ceiling and/wall constructions from sheet metal plates |
| 03/29/1994 | US5298843 Method for restarting punch press machine and numerical controller |
| 03/23/1994 | EP0588528A1 Apparatus and method for forming and hydropiercing a tubular frame member |
| 03/23/1994 | CN2159269Y Die for tapered hole |
| 03/22/1994 | US5295390 Method of burring |
| 03/22/1994 | CA1327881C Indexable multi-tool for punch press |
| 03/17/1994 | WO1994005488A1 Breakthrough buffer for presses and control method therefor |
| 03/17/1994 | WO1994005443A1 Angle punching die arrangement and punching press having such an arrangement |
| 03/16/1994 | EP0586725A1 Noise reducing structure of slide-cam die |
| 03/15/1994 | US5293767 Machine tool |
| 03/09/1994 | EP0585576A1 Punching machine |
| 03/08/1994 | US5292292 Epicyclic gear train planet carrier |
| 03/08/1994 | US5291814 Lead frame cutting apparatus for integrated circuit packages |
| 03/08/1994 | US5291647 Combined processing machine |
| 03/02/1994 | CN2157841Y Profiling guiding device for coordinate punching & shearing system of machine tool |
| 02/24/1994 | DE4227092A1 Cutter for production of slotted filter pipes for bore wells - consists of shear cutter or punch with guide outside and cutter plate inside pipe |
| 02/23/1994 | EP0583537A1 Arrangement enabling variably oriented punching with each tool in a multiple tool holder |
| 02/23/1994 | CN2156963Y Sheet puncher |
| 02/22/1994 | US5289096 Press machine stroke operation mechanism and operation control method therefor |
| 02/22/1994 | CA1327158C Die stamping system |
| 02/21/1994 | CA2087575A1 Arrangement enabling variably oriented punching with each tool in a multiple tool holder |
| 02/16/1994 | CN2155968Y Multi-purpose aluminium alloy end cutting and hole punching machine |
| 02/08/1994 | US5284069 Ball lock punch retainer |
| 02/08/1994 | US5284043 Method and device for separating a contoured product from sheet metal |
| 02/01/1994 | US5282378 Fluid actuated, double acting machine for punching, cutting, bending or the like |
| 01/27/1994 | DE4224649A1 Punch for sheet metal components with blades between two jaws - has blades exchangeably mounted between jaws, which has flexibly mounted pressure jaws |
| 01/26/1994 | EP0580124A1 Multiple tool for punch press |
| 01/20/1994 | WO1994001234A2 Assembly line for producing steel coffers for ceiling and/wall constructions from sheet metal plates |
| 01/20/1994 | WO1994001233A1 Two stage die set |
| 01/20/1994 | DE4223247A1 Producing small tubing from strip - using punching and cutting station, followed by U-forming of strip and O-forming of strip with final laser welding |
| 01/20/1994 | DE4222520A1 Appts. for operating on components esp. punching - with the axes of rotation of the tools and tool carriers forming an angle |
| 01/19/1994 | EP0579217A1 Multiple tool for punch press |