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Patent Searching and Data


Matches 401 - 450 out of 2,448

Document Document Title
WO/1999/025505
The invention relates to a method and device for reducing the wall friction during an internal high pressure forming process especially during expansion compression in which a controlled axial feeding of metal into the forming zones occu...  
WO/1999/025504
The invention relates to a method for hydraulically sealing a hollow profile section comprised of a metal material, especially steel, which is subjected to an internal high pressure forming process by an active means. The invention is ch...  
WO/1999/020414
The invention relates to a method for producing a shaft from a tube piece (R), said shaft comprising at least one dome-shaped component, such as a lifting bearing, a cam (N1, N2) or a bearing shoulder. The method facilitates an economica...  
WO/1999/017894
A method of hydroforming an angled tubular part comprising disposing an angled metal tubular blank within a generally correspondingly angled die cavity, the tubular blank having an exterior surface, wherein at an angled portion of the tu...  
WO/1999/016561
A pneumatic isostatic forging process for densification of near net shape workpieces is disclosed. A workpiece (22) is heated prior to the forging process, such as from a previous processing step (14). The workpieces is loaded into a pre...  
WO/1999/012730
A device for holding, in a braking manner, a preferably sheet-formed blank (31) when forming the blank in a fluid cell press. During the forming, a hydraulic forming pressure is applied, via an elastic diaphragm (4), to one side of the b...  
WO/1999/005239
Magnesium hydroxide or mixtures of magnesium hydroxide and boron nitride applied, e.g., by spraying in a liquid vehicle onto surfaces of a sheet (22) of a superplastic formable metal alloy facilitate the forming of such sheet material an...  
WO/1999/003616
The present invention relates to a method and apparatus for forming an elongated tubular metal member from a tubular metal blank. The method comprises: i) placing a tubular metal blank having a generally oval cross section into a die cav...  
WO/1998/054370
The invention concerns a method for manufacturing quenched metal hollow casings of steel by blow-moulding whereby a preheated hollow casing billet, preferably above austenitising temperature, is introduced into a blow-moulding tool (1) a...  
WO/1998/051425
A method for hydroforming a closed channel member (10) that allows the perimeter to be increased, but which maintains a uniform wall thickness throughout, includes the initial step of disposing a closed channel member (10), such as a tub...  
WO/1998/051427
A sealing unit capable of sealing engagement with an end of a tube (20). The tube has an outer wall and a bore surrounded by an inner wall. The seal unit comprises a tapered element (47) having a longitudinal axis. The tapered element is...  
WO/1998/051428
An apparatus and method for forming a complex-shaped frame member from a blank tube (20) having opposed ends are provided. The blank tube is placed in a first cavity (22) on a lower die (12). An upper die (14) is lowered from an open pos...  
WO/1998/046382
An apparatus for hydroforming a tubular metal blank has a die structure (12), a hydroforming fluid source, a hydraulically driven tube-end engaging structure (36), a hydraulically driven pressure intensifying structure (110), and a singl...  
WO/1998/046381
The invention relates to a method for forming a metal blank to produce a metal piece in a tool mould, said tool mould having a first mould half and a second mould half. A membrane can be inserted between these two mould halves and a meta...  
WO/1998/046943
A method and apparatus for enclosing, controlling and suppressing the explosive destruction of munitions, particularly cluster-bomb munitions in an explosion chamber. The explosions chamber (28) comprises a double-walled steel explosion ...  
WO/1998/043759
A forming device including discrete heating zones (18a-18d) along the axial length and circumferential portion of a mold cavity (23). One zone can be heated to cause the heated tube portion to become more elastic than the non-heated tube...  
WO/1998/043758
A frame member (510) is formed from a tubular blank (10) within a sectional die cavity (18, 19) having an inner portion (513) and an outer transition portion (21, 22). An outer end portion (513) of the tubular blank (10) is deformed by p...  
WO/1998/030354
A process for electromagnetically forming an elongated tubular workpiece (22) by applying an electromagnetic force provided by an energized workcoil (24) to the workpiece radially of its longitudinal axis, and by simultaneously applying ...  
WO/1998/029286
The invention relates to a wiper, comprising a fixing member (10) or a four-bar coupler (12), a joint element (14) and a wiper arm (16) with a coupled wiper blade, having at least one clamping element (18, 20), wherein at least one of th...  
WO/1998/025713
A metal tube is cold formed into a stamped member by filling the tube with a liquid change-of-state material, freezing the change-of-state material, sealing the tube containing the solid change-of-state material, and stamping the tube in...  
WO/1998/024569
The invention relates to a molded part (10) which is configured by initially forming a tubular body (2) with a soldered flange (7). Subsequently, the body (2) is shaped in a mold (8) by securing the flange (7) under high internal pressur...  
WO/1998/025051
A device for turning rotary motion into translatory motion, which device comprises at least three concentrically arranged threaded elements (2, 3, 4, 5). An externally threaded first element (2) is in engagement with an internally thread...  
WO/1998/023400
A novel apparatus for pulse magnetic forming of a tubular workpiece is provided. The apparatus forms functionally a single wind coil and is particularly suitable for joining or welding of a tube onto another tube or a cylindrical object.  
WO/1998/020991
Sheet materials are superplastically formed and optionally diffusion bonded into structures, by directly electrically resistance heating the sheets and forming them with a controlled gas-mass flow while the dies (362) in which they are f...  
WO/1998/019805
Process for connecting a metal tube (2) provided with an elastic plastic coating (3) to a member (5) provided with a tube-like portion (6) having outer dimension which is substantially equal to the inner dimension of the tube (2), which ...  
WO/1998/017415
Disclosed is a method for hot-forming hollow profile metal workpieces (2) enabling substantial deformation of up to 100 % and more, even for complicated hollow profile metal and non-straight workpieces at very short cycle times and low s...  
WO/1998/013166
Compression diffusion bonding according to the present invention uses a CRES template to apply increased pressure in the areas designated for diffusion bonds (DB) to improve the bond quality and to reduce the processing time. The CRES te...  
WO/1998/008633
A die assembly having die structures that are cooperable to define a die cavity into which a metallic tubular blank can be disposed. A first die structure is moveable to seal the die cavity, and after the die cavity is sealed, the first ...  
WO/1998/007547
A method of forming a hollow structure having a predetermined shape from a sheet of superplastic material. The sheet is initially formed into a preform configuration (10). A reusable fluid inlet tube is placed in the preform configuratio...  
WO/1998/003797
A method and apparatus for coupling tubular elements (12, 14, 16, 18, 20 and 22) of a frame (10) without welding or adhesive bonding. Connection elements (24, 26 and 28) are used with which mechanical connections may be accomplished by r...  
WO/1997/046341
In order to be able economically to produce longitudinal hollow body components, especially camshafts, not only with a saving in tooling and working steps but also with increased efficiency, projections or cams (6) from a hollow shaft (5...  
WO/1997/045216
A method of fabricating or forming a tubular member (10) to produce a torque joint wherein the torque joint is formed using an external die arrangement (64) for electromagnetic concurrently forming longitudinal and circumferential or rad...  
WO/1997/041979
This invention relates to a process of manufacturing a body substantially hemispherical in shape, comprising the steps of: (a) bonding a plate (1) to a substantially cylindrical shaped body (3) to form a two-piece body; (b) bonding the o...  
WO/1997/038807
The invention relates to a process for producing a region of greater wall thickness in a longitudinal hollow section (1) which, to this end, is subjected to a radial and axial pressure and plastically deformed thereby. The hollow section...  
WO/1997/034789
The invention concerns a vehicle windscreen-wiper system with a mounting for a drive comprising a wiper motor, a gear unit and a lever arm, the installation also having two bearing brackets spaced a certain distance apart and, in each be...  
WO/1997/029868
The invention concerns a method and device for producing a mounting on a sheet metal shaped part (2) made of thin sheet metal, in which the sheet metal shaped part (2) is provided with a dome (6). The object of the invention is to be abl...  
WO/1997/029869
A device and process for hydrostatic forming is disclosed. The device for hydrostatically forming an article (22) comprises an expandable bladder (14) for shaping the article (22); a fluid (16) for expanding the bladder; and a device (28...  
WO/1997/027970
A method of making an expanded metal sandwich structure (42) includes cleaning the appropriate parts prior to each bonding step in the process to remove metal oxides and residues that would interfere with the bonding steps. The core shee...  
WO/1997/027045
A superplastically formed, diffusion bonded sandwich structure (30) having integral metal hardpoints (40), made by joining two superplastic metal core sheets (36) together into a core pack (38) by welding or diffusion bonding along a pat...  
WO/1997/025165
Various methods and devices are disclosed for shaping/embossing thin-walled work pieces (e.g., drawn and ironed container bodies having a sidewall thickness of no more than about 0.007). One aspect is particularly apt for realizing compl...  
WO/1997/024558
A method and apparatus for enclosing, controlling, and suppressing the detonation of explosives in an explosion chamber is disclosed. The device comprises an elongate double-walled (1, 3) steel explosion chamber anchored to a concrete fo...  
WO/1997/022426
Two workpieces are joined together or welded to one another by inducing movement in a first of the two workpieces or a portion thereof by means of a pulsed magnetic force, whereby the first workpiece or portion impacts onto the second of...  
WO/1997/013683
A hollow, integral asymmetrical metal structure, e.g. an aircraft wing slat trailing edge, including two gradually diverging outer skins (16, 18) with differing curvatures joined together at one edge (20). The structure further includes ...  
WO/1997/012705
A method of manufacturing a metallic can body (24) that is shaped distinctively in order to enhance its visual presentation to consumers includes, in one embodiment, steps of providing a can body blank (10) that has a sidewall that is of...  
WO/1997/012706
A method of manufacturing a metallic can body (24) that is shaped distinctively in order to enhance its visual presentation to consumers includes, in one embodiment, steps of providing a can body blank (10) that has a sidewall that is of...  
WO/1997/012704
A method of manufacturing a metallic can body (24) that is shaped distinctively in order to enhance its visual presentation to consumers includes, in one embodiment, steps of providing a can body blank (10) that has a sidewall that is of...  
WO/1997/010907
A process and apparatus for electromagnetically forming the end of an electrically conductive aluminum tube (32) onto an end fitting (34). The apparatus includes a main coil (104) and a field concentrator (156) movable into an opening (1...  
WO/1997/005022
An aerosol container cover having a central opening for a nozzle and an outer edge adapted for sealing attachment to the open end of an aerosol container body. The aerosol container cover being of a relatively thin walled metal and havin...  
WO/1996/041692
A hydraulic pressure boosting unit (11) is used in particular in a press operating according to the high inner pressure extrusion process. The hydraulic pressure boosting unit has a docking cylinder (10) with a docking piston that slides...  
WO/1996/041957
A known hydraulic pressure boosting unit has a pressure booster (11) with a primary piston (40) that slides axially in a first cylinder chamber (16), a secondary piston (41) located on one first side of the primary piston (40) and that p...  

Matches 401 - 450 out of 2,448