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6634075 |
Method and arrangement in connection with secondary coating line
The invention relates to a method and an arrangement in connection with a secondary coating line, in which method a fiber, fibers or fiber bundles are unwound from payoff reels ( 1 ) and guided to...
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6634198 |
Method for producing a circumferentially closed hollow profile and device for performing the method
In a method and a device for producing a circumferentially closed hollow profile, a hollow-profile blank is expanded by fluidic internal high pressure in an internal high-pressure forming tool,...
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6631630 |
Hydroforming of composite materials
The present invention provides an apparatus and a method which use hydroforming to shape complex structures from materials such as sheet metal or composites. In particular, an apparatus and a...
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6615468 |
System for manufacturing built-up camshafts
A process and system for manufacturing a built-up camshaft by which the operational safety of the camshaft is ensured in a simple manner in any engine operation and the camshaft can arbitrarily be...
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6609301 |
Reinforced hydroformed members and methods of making the same
A method of hydroforming a reinforced tube comprising providing a metal tubular blank having an interior defined by an inner surface and an exterior defined by an outer surface. A metal reinforcing...
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6601423 |
Fabrication of bent tubing
An approach to restoring the cross-section of a bent tube to circularity. The tube is placed into a fixture, so that pressurization does not remove the bend. Liquid is placed into the tube, and...
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6591649 |
Method and apparatus for pulsed discharge forming of a dish from a planar plate
An apparatus for forming a generally planar metal plate into a dish with a three-dimensional pattern is provided. The apparatus comprises a mold having a forming surface with a contour...
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6588084 |
Process for producing a circumferentially closed hollow profile
A process is for producing a circumferentially closed hollow profile, which is of frustoconical form in sections, from a sheet-bar blank. To produce hollow profiles of this type, the sheet bar is...
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6584821 |
Self-aligning non-pinching hydroforming dies
A pair of self-aligning non-pinching hydroforming dies have fingers and slots which are operable during closure of the dies on a tubular part to effect precise alignment of the dies as they are...
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6584689 |
Multi-section support rail apparatus and method of making
A multi-section support rail has a first section with an outer circumferential wall, a parallel inner circumferential wall and a transverse web extending longitudinally therealong, a second section...
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6581263 |
Process and apparatus for producing an assembly linkage on a hollow profile
A process and a device produces an assembly linkage on a hollow profile which is shaped for the installation of the assembly part by internal high-pressure remodeling. In order to achieve the...
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6581284 |
Device and process for joining fitting parts on hollow profiles by means of fluid high internal pressure
A device and method for joining fitting parts provided with a passage opening on hollow profiles through partial expansion of the hollow profiles at the location of the fitting parts is provided....
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6581428 |
Method and apparatus for superplastic forming
The present invention provides a method and apparatus for forming a sheet of ductile material by superplastic forming. Excessive wrinkling is prevented in the present invention by providing a...
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6575007 |
Device for forming a hollow profile by means of internal high pressure forming
A device for forming a hollow profile formed as a multi-chamber profile by an internal high pressure generated by a fluid pressure medium within the hollow profile containing a sealing die engaging...
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6574849 |
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
First and second hollow bodies each having at least one opening are joined by first forming a fracture zone in a joint region of the first body and then juxtaposing the bodies in a closed cavity of...
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6571450 |
Process for the monolithic molding of superplastic material
In the process for the monolithic molding of superplastic material, generation of wrinkles on the molded product can be prevented by avoiding local expansion generated in the no-bonding regions of...
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6557233 |
Method and intermediate product for producing a hollow body and a hollow body produced by said method
The invention relates to method for producing a hollow body ( 26 ) from sheet metal, especially from aluminum or aluminum alloys. According to the inventive method, a substantially flat sheet metal...
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6539604 |
Vehicle structure with integral node
A fluid formed node is provided to connect structure in an automotive vehicle. Another aspect of the present invention includes a method of forming a structural interconnection including the steps...
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6536252 |
Non-metallic hydraulic expansion mandrel
A hydraulic expansion mandrel for expanding tubes in a heat exchanger tube bundle into a tubesheet is formed from a non-metallic material, such a carbon fiber-reinforced material. The mandrel...
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6532639 |
Hydroformed tubular structures and methods of making
A hydroformed tubular structure includes at least two hydroformed members connected at a joint. At least one of said members includes a flattened portion having opposite sides in engagement. One of...
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6532658 |
Process for the manufacture of a blade/vane of a turbomachine
In a process for the manufacture of a blade/vane of a turbomachine, the blade/vane is made of a metallic enveloping structure and a supporting structure made of composite material provided inside...
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6532641 |
Method of manufacturing an aluminum-thermoplastic panel
A sheet of aluminum is formed to a mold by applying gas pressure. Thermoplastic resin is heated and applied to the aluminum in a selected pattern through a nozzle. In one embodiment, the...
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6530252 |
Hydroforming method and hydroforming device
A plurality of closing cylinder devices are provided between a bolster of a press machine and a bed containing a lower mold of a hydroforming device. An upper mold is attached to a slide of the...
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6519851 |
Air gap insulated exhaust pipe with branch pipe stub and method of manufacturing same
A method for manufacturing an air-gap-insulated exhaust pipe having a branch stub, as well as an exhaust pipe produced according to such a method and a tool for forming such an exhaust pipe. Two...
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6519992 |
Method for operating a forming press
A method of operating a metal forming press in which in a rigid press frame a workpiece is preloaded against a tool by means of a hold-down force, with at least one ram tool applying a ram force in...
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6516646 |
Device for manufacturing a hollow body from two plates
A device for manufacturing a hollow body from two plates. The device includes an internal high pressure forming tool having an interior surface defining a mold chamber corresponding to a shape of...
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6513359 |
Fluid form
A fluid form that is used to produce deep-drawn articles (cf. 10 ) on any presses, and includes a ram ( 2 ), a hold-down plate ( 3 ) and a die ( 4 ), which can be filled, preferably, with water,...
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6513242 |
Method of manufacturing a vehicle body and frame assembly including hydroformed side rails
A method is disclosed for manufacturing a vehicle body and frame assembly including a pair of side rails, each of which is formed from a single closed channel structural member that extends the...
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6513243 |
Method of producing front axles for industrial vehicles
A method of producing hollow front axles industrial vehicles including the steps of fluoforming a tubular blank to obtain an intermediate product having reduced-diameter ends, crushing the...
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6510720 |
Hydraulic pressure forming using a self aligning and activating die system
The present invention provides a hydroforming system and method eliminating the need for a solid steel die (or mold) set operated by a conventional high tonnage hydraulic press. The invention...
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6505389 |
Apparatus and method for forming a tube having an article attached thereto
In the present invention, at least one tubular blank and at least one article such as a metal stamping, to be attached to a hydroformed part, are loaded into a die. The tube is hydroformed using...
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6497030 |
Method of manufacturing a lead screw and sleeve mechanism using a hydroforming process
A method of manufacturing a sleeve mechanism without the use of machines by using a hydroforming process. The method includes the steps of providing an inner sleeve, an intermediate sleeve, and an...
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6497128 |
Method of hydroforming a fuel rail for a vehicular fuel delivery system
A method of manufacturing a fuel rail for use in a fuel delivery system, such as for an engine in a vehicle, includes the initial hydroforming step to deform a central portion of a workpiece to...
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6484384 |
Method of manufacturing an axially collapsible driveshaft assembly
A method of manufacturing a collapsible driveshaft assembly includes the steps of disposing an end of a first tube within a forming die having a non-circular cross sectional shape, expanding the...
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6474534 |
Hydroforming a tubular structure of varying diameter from a tubular blank made using electromagnetic pulse welding
A method of hydroforming a tubular structure of varying diameter along its longitudinal axis, comprising the formation of a tubular blank member by welding together, at their periphery, tubes of...
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6460250 |
Process for producing a tubular structural element
A process for forming an elongate structural element of desired shape being of large and small cross-sectional dimensions at spaced locations along its length, the process including the steps of: ...
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6442820 |
Method and apparatus for forming a tube having an article inserted therein
In the present invention a tubular blank and an article such as a bushing to be assembled are loaded into a die. The tube is hydroformed using typical methods and, while the blank is still...
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6438815 |
Windshield wiper arrangement for vehicles
A windshield wiper arrangement includes a mounting for a drive containing a wiper motor, a gear unit and a lever arm and two bearing brackets, spaced from the drive, containing wiper arm drive...
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6434989 |
Method and device for producing leadthroughs on hollow profiles
A method and a device for producing leadthroughs on hollow profiles acted upon by a high fluidic pressure in an internal high-pressure forming tool. Dome-like secondary shaped elements are formed...
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6425172 |
Homogenizing process for fiber-wrapped structural composites
The invention relates to a process for the manufacture of fiber-reinforced pressure vessels and the product produced therefrom. A vessel liner is wrapped with resin-impregnated fibers and cured...
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6418607 |
Method and apparatus for fabricating a hollow body
In a method and apparatus for fabricating a hollow body, preferably of sheet metal, such as for example automobile hoods and doors, at least two blanks are held sealingly together and the hollow...
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6408515 |
Method for manufacturing an engine cradle for a vehicle frame assembly
A method for manufacturing an engine cradle for use with a vehicular body and frame assembly includes the initial step of selecting desired materials for each of four hollow members that will be...
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6401509 |
Method for producing a hollow body made of metal
The present invention relates to a method for manufacturing a hollow body made of metal whose cross sectional shape changes in longitudinal direction, a tubular slug being sealed at its end and...
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6401507 |
Hydroforming, in-die hydropiercing and slug-ejecting method and apparatus
A die button flush mounted in the cavity surface of a lower one of two hydroforming dies has a backup plunger received therein that forms a part of this surface when the plunger is in a...
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6397449 |
Method for expansion forming of tubing
A frame member of rectangular cross section with rounded corners is formed by expansion of a tubular blank within a die cavity having an inner portion of corresponding cross section and an outer...
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6395217 |
Extrusion molding process and the related apparatus
An extrusion molding process including the steps of: i) extruding a material through an extruding die into a tubular molding, ii) driving two clamping devices to clamp the tubular molding at...
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6386009 |
Method and apparatus for hydroforming multiple components with reduced press loading
Apparatus and method for hydroforming multiple components simultaneously with a smaller capacity press than would be possible using conventional hydroforming methods and apparatus. Die pairs are...
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6354124 |
Method and apparatus for the hydraulic forming of workpieces
Internal high pressure forming at present takes place by exerting a pressure between sheet metal blanks fixed by a marginal weld. It has already been proposed to deform under high internal pressure...
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6352311 |
Method of manufacturing a backrest structure for a vehicle seat and backrest structure obtained by this method
A backrest structure for a vehicle seat comprises two hydroformed, tubular, horizontal crosspieces and vertical uprights engaged without any clearance in orifices punched into these crosspieces...
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6349615 |
Lever
A lever, for example, for transferring force to another structural component of a mechanism, has a prefabricated connecting piece disposed on at least one of its ends. The lever is constructed as a...
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