Patents
Sitemap › B21 - Mechanical metal-working without essentially removing material; Punching metal › B21C - Manufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling; Auxiliary operations used in connection with metal-working without essentially removing material › B21C 37 - Manufacture of metal sheets, rods, wire, tubes, profilesor like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
Patents for B21C 37 - Manufacture of metal sheets, rods, wire, tubes, profilesor like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape (9,784)
08/2003
08/20/2003CN1436869A Aluminium alloy pipe with excellent multi-section mouldability
08/20/2003CN1436614A Method and equipment for producing bypass annular orifice on pipe
08/20/2003CN1118429C Spiral screw with external field replaceable flight and replacing method
08/19/2003CA2209612C A method of producing an overhead contact wire for supplying power to electrically driven vehicles
08/14/2003US20030151273 Automobile strengthening member
08/14/2003US20030150585 Method for manufacturing composite materials
08/14/2003US20030150114 Method for making a structural element having a generally tubular metal wall and structural element
08/12/2003CA2324730E Method and apparatus for reducing slot width in slotted tubular liners
08/12/2003CA2139829C Partially thick-walled elongated metallic member and methods of making and connecting the same
08/07/2003US20030145977 Directionally solidified superalloy weld wire
08/07/2003US20030145913 Seam welding; electrical resistance; diameter reducing rolling
08/07/2003US20030145465 Method of forming heat exchanger tube
08/06/2003EP1332807A1 Method and apparatus for making a branch collar in a pipe
08/06/2003EP1332011A1 Method for producing strip-shaped input stock, especially from metal, which is profiled in subsequent sections, and corresponding device
08/06/2003CN1433855A Method and structure for fin and connector automatic formation
08/05/2003US6601427 Method of manufacturing pipe body and pipe body manufactured by the method
08/05/2003US6601299 Tapered fin and method of forming the same
08/05/2003CA2417573A1 Aluminum alloy pipe having multistage formability
07/2003
07/30/2003EP1331649A1 Method and apparatus for producing keystone type superconducting formed strand
07/30/2003CN1433343A Device and method for manufacturing soft metal tube
07/29/2003US6598441 Method for forming metal parts by cold deformation
07/29/2003US6598287 Apparatus and method for sizing a galvanized tube
07/24/2003WO2003059791A1 Support for moving cylindrical elements and a method and conveyor using such supports
07/24/2003US20030135976 Apparatus and method for sizing a galvanized tube
07/24/2003US20030135971 Bundle draw based processing of nanofibers and method of making
07/23/2003EP1329269A1 Apparatus for hydro-forming and its use
07/23/2003EP1328358A1 Method of reducing slot width in slotted tubular liners
07/23/2003EP1250199B1 Method and forming tool for the production of cylindrical tubes by extrusion
07/23/2003EP1114426A4 Medical devices incorporating at least one element made from a plurality of twisted and drawn wires
07/22/2003US6594900 Method for manufacturing a pipe connector of a gas isolated switchgear
07/17/2003US20030133810 High internal pressure forming process
07/17/2003US20030131913 Deformed metal composite wire
07/17/2003CA2416088A1 High internal pressure forming process
07/16/2003EP1100636B1 Metallic shell component
07/15/2003US6591653 Production method of multi-gauge strips
07/10/2003US20030127782 Air suspension piston
07/10/2003US20030127494 Metal tubular body and manufacturing method thereof
07/10/2003US20030127149 Metal tube and its production method
07/10/2003US20030126730 Tubular assembly having hydroformed interconnecting member and method for making same
07/10/2003DE20220397U1 Forming device for bending edges of hole in pipe to form flange or neck, includes expansion mandrel for pressing into flange from outside pipe
07/09/2003EP1324879A1 Metallurgically bonded layered article having a curved surface
07/09/2003EP1324853A2 Apparatus and process for assembling exhaust processor components
07/09/2003EP0882939B1 Heating tube for absorber and method of manufacturing same
07/09/2003CN1428533A Metal pipe and its production method
07/09/2003CN1428215A Metal pipe and its mfg. method
07/09/2003CN1428211A Heating exchanger pipe with two-sided structure and its manufacturing method
07/09/2003CN1113710C Method for machining bent and deformed part of metal plank and metal blank adopted thereof for plastic machining
07/08/2003US6588648 Method and device for transferring a hollow-profile blank
07/03/2003US20030121304 Apparatus for the production of stretched wire
07/02/2003EP1323484A2 Metal tubular body and manufacturing method thereof
07/02/2003EP1323483A2 Metal tube and its production method
07/02/2003EP1015669A4 Article, method, and apparatus for electrochemical fabrication
07/02/2003EP0814937B1 Method of forming seamed metal tube
07/01/2003US6586110 Contoured metal structural members and methods for making the same
07/01/2003US6584669 Method for producing metal shapes with a polygonal cross-section by means of continuous casting on a double-flanged wheel and continuous rolling
06/2003
06/26/2003WO2003052337A1 Tube and method for manufacturing tube, tube for heat exchanger and method for manufacturing tube for heat exchanger, and heat exchanger and mehod for manufacturing heat exchanger
06/25/2003EP1321203A2 Forming press
06/25/2003EP1321199A2 Method for preparing ultra-fine grain titanium and titanium-alloy articles and articles prepared thereby
06/25/2003CN1426489A Steelpipe having high formability and method for production thereof
06/25/2003CN1426332A Method for manufacturing of plate involving intermediate proforming and final shaping
06/25/2003CN1426331A Gilled pipe
06/24/2003US6581433 Method of manufacturing a metal pipe with an eccentrically expanded open end
06/24/2003US6581431 Eccentric pipe sections
06/19/2003US20030111510 Concentric, insulated tubular conduits and method for assembly
06/19/2003US20030111222 Variable OD coiled tubing strings
06/19/2003US20030111215 Internally finned heat transfer tube with staggered fins of varying height
06/19/2003US20030111147 Homogenizing by stirring; metal working; aerospace structural components such as fasteners
06/19/2003US20030110825 Manufacture of metal tubes
06/19/2003US20030110612 Method for making metallic cord
06/18/2003EP1318880A2 Apparatus and methods for forming internally and externally textured tubing
06/18/2003DE20023235U1 Finishing process to consolidate the material of a curved/shaped pipe to carry a motor fuel feed at high pressure has external mechanical clamps to retain the pipe geometry while the interior is subjected to a high fluid pressure
06/18/2003CN1111717C Refrigerent tubes for heat exchangers
06/17/2003US6578400 Internal high pressure forming method for a workpiece
06/12/2003WO2003047783A1 Method and device for changing the rolls of a tube welding stand
06/12/2003US20030106599 Gilled pipe
06/12/2003DE10217621C1 Two part metal profile has channel section with grooves to receive edges of pressed in closing strip
06/12/2003DE10151585C1 Wire shaping system for manufacture of polygonal-shaped steel shot for use in sporting shotguns involves rolling to square-section, cutting to form cubes and then partial rounding to make polygonal shape
06/12/2003DE10143836C1 Flachprodukt aus Metall, insbesondere als Wandung für Wärmetauscher sowie Wärmetauscher mit einer doppellagigen Wandung aus Kupfer und Titan Flat product made of metal, in particular as a wall for heat exchangers and heat exchangers with a two-ply wall consisting of copper and titanium
06/11/2003EP1317975A1 Device for producing stretched wire
06/10/2003US6575198 Method of connecting two elongated portions of metallic plate, method of manufacturing exhaust pipe of two-passage construction, and exhaust pipe of two-passage construction
06/10/2003US6574849 Method for deforming through high inner pressure at least two hollow bodies having each at least one opening, especially metal tubes or metal hollow profiles
06/07/2003CA2411623A1 Apparatus for the production of stretched wire
06/05/2003WO2003045601A1 Device for production of a tube
06/05/2003DE20217256U1 Grinding device for cross direction welds in steel pipes, has support for moving it in pipe axial direction and safety device for preventing casing movement in this direction
06/04/2003EP1316384A2 Method of manufacturing an exhaust pipe of two-passage construction and exhaust pipe of two-passage construction
06/04/2003EP1316371A2 Welding device for tubes
06/04/2003EP1315592A1 Hollow member, manufacturing method therof, fluid distribution system using the hollow member, and forming apparatus of hollow member
06/03/2003US6572742 Apparatus for electrochemical fabrication using a conformable mask
06/03/2003US6571593 Continuous shear deformation device
06/03/2003US6571473 Method and system for manufacturing refrigerant tubes for condensers
05/2003
05/28/2003DE10153144C1 Device, for producing a polygonal pipe, comprises a pipe-welding unit, a roller unit, and a camber roller unit located downstream of the roller unit and having convex rollers on opposite-lying pipe sides
05/28/2003CN1419976A Metal pipe and method for mfg. same
05/27/2003US6568060 Method and fixture for filled billet packing
05/22/2003US20030094272 Heat-exchanger tube structured on both sides and a method for its manufacture
05/22/2003US20030094209 Two-layer clad pipe and method for making the same
05/21/2003EP1312885A2 Heat exchange tube structured on both sides and process for making same
05/21/2003EP1312244A1 Formation of metal wire
05/21/2003EP1311382A2 Contoured composite structural members and methods for making the same
05/21/2003CN1108917C Manufacturing apparatus of composite pipe and manufacturing method thereof
05/20/2003US6565675 Multistage wet drawing; reinforcement for pneumatic tires
1 ... 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 ... 98