Patents for B21C 25 - Profiling tools for metal extruding (3,331)
04/2001
04/03/2001US6209379 Large deformation apparatus, the deformation method and the deformed metallic materials
03/2001
03/21/2001CN1063359C Method and mould for pressing lock clip of air valve
02/2001
02/27/2001US6192730 Process for extruding a hollow section or the like from a billet and a device for that purpose
02/21/2001CN2420077Y Improved forming mould for connection shaft
02/20/2001US6190595 For manufacturing bent workpieces, having an extrusion die which presses material through a bottom die, further bottom die elements are displaceably, rotatably disposed so their openings form extrusion duct of variable curvature and twist
02/14/2001CN2418978Y Liquid pressing mould for flywheel cover for gear chamber of multi-cylinder diesel engine
02/01/2001WO2001007405A2 New vitamin d derivatives with cyclic substructures in the side chains, method and intermediates for their production and their use in the preparation of medicaments
02/01/2001DE19935771A1 Neue Vitamin D-Derivate mit cyclischen Substrukturen in den Seitenketten, Verfahren und Zwischenprodukte zu ihrer Herstellung und die Verwendung zur Herstellung von Arzneimitteln New vitamin D derivatives with cyclic substructures in the side chains, to processes and intermediates for their preparation and to the use for the preparation of medicaments
02/01/2001CA2376465A1 New vitamin d derivatives with cyclic substructures in the side chains, method and intermediates for their production and their use in the preparation of medicaments
01/2001
01/23/2001US6176153 Process for manufacturing an extrusion tool using a CVD process
01/10/2001CN2413815Y Top mould board for aluminium exturding type die
12/2000
12/14/2000DE19925029A1 Deforming process used for extruding workpieces comprises pre-tensioning the mold using a tensioning cone before or during extruding and unlocking before ejecting
12/13/2000CN1059380C Method and device for continuous manufacture of profiled sections
12/06/2000EP1056554A1 Forming tool
12/05/2000US6155092 Apparatus and method for forming a double ended upset pipe
11/2000
11/30/2000WO2000071275A1 Device for manufacturing metal objects
11/28/2000US6153131 Determining optimal extrusion process parameters such as temperature and speed and then designing an extrusion die based on these parameters
11/22/2000EP0747145B1 Die for extrusion of variable cross section and extrusion molding method for variable cross section
10/2000
10/26/2000DE19916566A1 Die for heavy duty hollow shaping tool, with reinforcement consisting of reinforcing fibers or fiber strings round circumference of pressing bush
10/24/2000US6134936 Mold for heat sink
10/18/2000EP1044741A2 Large deformation apparatus, the deformation method and the deformed metallic materials
10/11/2000CN2400197Y Double-coupled gear blank profiling die
10/04/2000CN2399128Y Solid section extruding mould
09/2000
09/12/2000US6116074 Extrusion arrangement and process for manufacturing hollow-profile workpieces made of metal
07/2000
07/26/2000CN2389025Y Improved aluminium-extruding type hollow tube formation structure
07/12/2000EP1017527A1 Continuous extrusion process and device for rods made of a plastic raw material and provided with a spiral inner channel
07/12/2000CN2386901Y Novel aluminium alloy combination compressing die
07/12/2000CN1259897A Extrusion molding process and related apparatus
07/12/2000CN1054321C Teeth extrusion mould for working iron door hinge teeth end and method for extruding teeth end
06/2000
06/28/2000EP1011884A1 Extrusion die, production and use
06/07/2000CN2381410Y Structure of indirect extruding mould
05/2000
05/16/2000US6062059 Manufacture of extrusion dies
05/09/2000US6058757 Machining of sheet by compression without removal of material
04/2000
04/26/2000CN1051729C Extruding mould
04/20/2000WO2000021696A1 Apparatus and method for forming a pipe with increased wall-thickness at its ends
04/20/2000CA2346705A1 Apparatus and method for forming a pipe with increased wall-thickness at its ends
04/12/2000CN2373201Y Mould for producing give-up positive pole zonal magnesium
04/04/2000US6044680 Machining of sheet without removal of material
03/2000
03/30/2000DE19842293A1 Process for extruding hollow profiles from ingots comprises inserting the ingot material under pressure into a central feed of a molding tool and feeding the ductile mass produced at an angle to a pressing device
03/23/2000WO2000015862A1 A method and a device for the treatment of a tool, and a medium
03/23/2000DE19842291A1 Verfahren zum Strangpressen eines Hohlprofils od. dgl. Körpers aus einem Barren sowie Vorrichtung dazu Process for extruding a hollow section od. The like. A device body from an ingot, as well as to
03/22/2000EP0987068A2 Method and device for the extrusion of a hollow section or similar body from bars
03/15/2000CN1247110A Technology and mould for manufacturing Al-alloy heat radiator with ultrahigh tooth-form ratio
03/01/2000CN2366197Y Automobile safety air-bag air generator-shell damping type cold extruding dies structure
02/2000
02/23/2000CN1245094A Tool set for extruding metal
02/22/2000US6027822 Core material coated with a solid-phase extruded, corrosion-resistant metal, wherein the metal has a longitudinally oriented grain structure and a uniform grain size; rechargeable batteries
02/22/2000US6027683 Extrusion molding process and apparatus
02/09/2000EP0769334B1 Variable cross section extruding die and variable cross section extrusion molding method
02/09/2000CN2362606Y Composite mould for one-step cold-extrusion formation of multi-section spline shouldered shaft
01/2000
01/19/2000CN2359022Y Flat extrusion tube for forming aluminium section bar
12/1999
12/23/1999WO1999065622A1 Improvements in or relating to the manufacture of extrusion dies
12/23/1999CA2334667A1 Improvements in or relating to the manufacture of extrusion dies
12/21/1999US6004489 Method for designing an extrusion process and die
12/14/1999US6000269 Method of forging and forging equipment
12/08/1999CN2352276Y Dies for cold extruding valve core
12/07/1999US5996393 Extrusion die for tungsten alloys
12/01/1999EP0906160A4 Extrusion die
12/01/1999CN2351225Y Feed-through extruder
11/1999
11/24/1999EP0958121A1 A method for continuous manufacture of profiled sections and a device for performing the method
11/23/1999US5989466 Variable section extrusion die set and variable extrusion molding method
11/17/1999EP0626059B1 Intermetallic alloys for use in the processing of steel or glass
11/16/1999US5983675 Method of preparing intermetallic alloys
11/03/1999CN2346520Y Inner frame processing mould improved structure of aluminium door/window
11/02/1999US5974850 Extrusion die
10/1999
10/27/1999CN1045912C Mold-extruding expanding and forming process for multi-way pipe and its die
10/20/1999CN2344107Y New type aluminium alloy squeezing die
10/12/1999US5964120 Hot extrusion forging die for use in titanium alloy
09/1999
09/29/1999CN1045265C Combined mold for extrusion pressing and method of extrusion pressing
09/07/1999US5948523 Tool for coldforming operations
09/01/1999CN2335718Y Non-ferrous metal hot extrusion die
08/1999
08/24/1999CA2129523C Intermetallic alloys for use in the processing of steel
08/19/1999DE19804700A1 Formwerkzeug Mold
08/18/1999EP0719189A4 Continuous metal strip production having an alignment system
08/12/1999WO1999039848A1 Forming tool
08/11/1999CN1225689A Tool for coldforming operations
07/1999
07/21/1999CN1223178A Machining of sheet without removal material
05/1999
05/19/1999EP0916421A1 Machining a sheet metal without removing material, by compressing
05/19/1999EP0916419A1 Working of sheet without removing material, by drawing
05/18/1999US5904939 Extruder for extrusion manufacturing
05/13/1999CA2250991A1 Sheet metal machining by way of stretching and without removal of material
05/12/1999EP0914487A1 Tool for coldforming operations
04/1999
04/28/1999CN2316057Y Hydraulic die frame for hot extrusion formation of half-axle sleeve
04/28/1999CN2316056Y Fixed dummy block device for aluminium section material
04/22/1999DE19810013A1 Extrusion tool
04/07/1999EP0906160A1 Extrusion die
03/1999
03/24/1999CN2311322Y Steel combined with golden empiecement die assembly
03/24/1999CN2311321Y Disposable vulcanizing mould for gasket of internal combustion engine
03/18/1999WO1999012671A1 Extrusion die, production and use
03/11/1999DE19810015A1 Strangpreßwerkzeug, Verfahren zu dessen Herstellung sowie seine Verwendung Extrusion die, a process for its preparation and its use
03/09/1999US5878616 Centering plug for pipe press
02/1999
02/25/1999CA2236129A1 Billet for molding aluminum
02/24/1999CN2308453Y Hard alloy column tooth and drill sheet pressuring die
02/16/1999US5870922 Process and system of calculation for construction of dies for extrusion of solid aluminum profiles
02/16/1999US5870921 Extrusion die for semi-hollow and hollow extruded shapes and tube
01/1999
01/20/1999CN2304481Y Flat extruding cylinder
12/1998
12/23/1998WO1998057793A1 Extrusion molding process and the related apparatus
12/23/1998CA2294015A1 Extrusion molding process and the related apparatus
12/15/1998CA2100356C Method and apparatus for production of continuous metal strip
11/1998
11/17/1998US5836191 Continuous extrusion apparatus
11/11/1998CN2296779Y Combined terrace die for extruding deep hole
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