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Class 72/63 - Utilizing diaphragm between fluid and work


Subclass of Class 72 - Metal deforming
Definition: Subject matter comprising a step of, or means for, utilizing
No. of patents: 89
Last issue date: 02/24/2009


1      
NumberTitleIssue Date
7493787Electro-hydraulic forming tool having two liquid volumes separated by a membrane
An electro-hydraulic forming tool is disclosed in which a membrane is retained between two volumes of liquid that are separated by a membrane. Electrodes are provided with a high voltage impulse to create a shockwave in one of the volumes of fluid that is transferre...
02/24/2009
7461531Press plant and a method and use for it with a pressure cell and a divisible tray
A press plant includes a press of pressure cell type, into which a tray device, which defines a space intended to receive a workpiece and, optionally, a forming tool, is insertable. The tray device comprises a tray plate and a tray frame. The tray frame is adapted t...
12/09/2008
7380429Tubular local expansion apparatus and method of locally expanding tubular member for vehicles
An apparatus and method for locally expanding tubular member includes a pre-form die having a cavity with an expansion chamber therein to receive a portion of a tubular blank between ends thereof. The apparatus also includes a bladder apparatus for insertion in the ...
06/03/2008
7320211Method of exchanging a diaphragm device
The invention relates to a press of pressure cell type, which comprises a press chamber in which a diaphragm device is arranged. The diaphragm device includes a diaphragm which together with a press plate forms a pressure cell and is adapted to exert a forming press...
01/22/2008
7296449Dry hydraulic can shaping
A method for shaping an aerosol container (10) to a desired body contour. A container body (12) is formed into a cylindrical shape and installed into a mold (30) whose inner surface defines the desired body contour. A bladder (74) is fitt...
11/20/2007
7225542Vehicle body compartment lid method of manufacturing
A vehicle body compartment lid includes a unitary, one-piece panel. The panel has both an inner panel portion and an outer panel portion, and is bent or folded such that the inner panel portion and the outer panel portion are in juxtaposition with one another. A met...
06/05/2007
7217331Method for shaping structures comprised of aluminum alloys
A method is provided for forming complex structures from aluminum alloys, particularly from naturally hard AlMg alloys, naturally hard AlMgSc alloys and/or age-hardenable AlMgLi alloys. The method, in a simple manner by means of as few process steps as possible, for...
05/15/2007
7210323Binder apparatus for sheet forming
A forming apparatus and method for minimizing wrinkling in the forming of a three-dimensional component from a two-dimensional blank. The forming apparatus includes vertically opposed sets of tools or binders. A first tool or binder apparatus has first and second se...
05/01/2007
7197910Die cushion apparatus of a press machine and surge pressure reduction method for a die cushion apparatus
In a die cushion apparatus, a pressurizing force acting on a die cushion pad is applied to a first piston of a hydraulic cylinder unit by the operation of a slide, the first piston slides inside a first cylinder and pressure oil in a first hydraulic chamber is press...
04/03/2007
7165301Motorcycle rear suspension swingarm assembly
An off-road motorcycle incorporates a swingarm assembly for pivotally supporting a rear wheel relative to a frame of the motorcycle. Preferably, the swingarm includes right and left arms extending rearwardly from a forward connecting portion. Right and left rear whe...
01/23/2007
7163121High temperature isostatic pressure bonding of hollow beryllium pressure vessels using a bonding flange
A bond joint and process of bonding metal parts to one another to form seamless, hollow metal articles, particularly made from beryllium. Tooling is assembled to the parts, prior to hot pressing, to cause pressure to be applied to flanges that extend peripherally fr...
01/16/2007
7155948Forming tool
The invention relates to a forming tool for forming sheet blanks in a diaphragm press of the kind comprising an openable, closed pressure chamber, which is divided in a gas and liquid tight manner by means of a flexible diaphragm. The forming tool is arranged on one...
01/02/2007
7155949Fluid cell press with a gripping arrangement and method and use of the press
The present invention relates to a method in a press of pressure cell type comprising a forming tool and, separated therefrom, a diaphragm, which define a forming space in which a blank is inserted for forming thereof against the forming tool by pressing the diaphra...
01/02/2007
7150171Pressure cell press comprising a tray, and a method for manufacturing said tray
The present invention relates to a press of pressure cell type, a tray for use in a press of pressure cell type and a method. The tray comprises a tray frame, which defines a space for arranging a forming tool and/or a work-piece. Prestressing means are arranged on ...
12/19/2006
7150177Hydraulic press with a pressure cell and a method and use for it, whose press body consists of prestressed lamellas
A press of pressure cell type includes a press body part. The press body part comprises a number of plates with the planes of the plates oriented parallel to the planes of the adjacent plates. Each plate has a through hole which has the same center axis as the hole ...
12/19/2006
7127925Diaphragm support and a method for initial sealing in a pressure cell
A press of pressure cell type, which comprises a press chamber in which a diaphragm device is arranged. The diaphragm device comprises a diaphragm which together with a press plate forms a pressure cell and is adapted to exert a forming pressure on a workpiece in th...
10/31/2006
7124618Clamp assembly for hydroforming die
A clamp assembly for a hydroforming die includes a stationary lower bed to support a lower die half of the hydroforming die, a stationary upper bed spaced above the lower bed, at least one guide post extending between the lower bed and the upper bed, a movable slide...
10/24/2006
7093470Methods of making integrally stiffened axial load carrying skin panels for primary aircraft structure and fuel tank structures
Methods for making skin panels suitable for use in aircraft structures and fuel tank structures, such as fuselages and reusable launch vehicle propellant tanks. A first method includes the following steps: machining a starting plate to a final part geometry; and exp...
08/22/2006
7080536Device for manufacturing formed parts by internal high pressure deformation
A device for manufacturing formed parts by internal high pressure deformation. The device includes a housing composed of two tubular members which are placed one into the other and are connected by shrinkage, wherein the tool support unit is mounted in the concentri...
07/25/2006
6969821Airfoil qualification system and method
A method for qualifying airfoil blades includes securing an airfoil blade into a fixture, taking digital measurements of the airfoil blade, comparing the digital measurements of the airfoil blade with measurements of a target model, calculating deviations between th...
11/29/2005
6955070Device for punching work pieces in an internal high-pressure forming tool
A device for punching work pieces in an internal high-pressure forming tool includes a punching die guided displaceably in a bore of the forming tool. The device also contains a drive with which the punching die is moved back and forth between the in-use position an...
10/18/2005
6938449Hydraulic forming process, hydraulic forming device and metal separator for a fuel cell formed by hydraulic forming process
By using a hydraulic forming device 20, a metal plate body 11 is placed on a support section 21b with a hollow section 21a formed on a lower die 21 filled with hydraulic fluid A. Subsequently, a blank holder 23
09/06/2005
6938447Apparatus and method of correcting deformation of gas turbine blade
An apparatus for correcting deformation of a gas turbine blade includes a stationary die fixed to a backside of a tip shroud of a gas turbine blade to hold a back surface thereof and a pressing die pressing a front surface of the tip shroud so as to press the tip sh...
09/06/2005
6935150Superplasticity forming mould and mould insert
The mould (10) includes at least one part (20), intended to be in contact with the component (12) being moulded, made from sintered vitreous silica. According to the process, said component (12) is formed by the superplastic forming in th...
08/30/2005
6837088Blow-forming flask and tool assembly
A flask and tool assembly includes a forming tool insert that is housed within an insulated flask having four vertical sides. An insulation enclosure surrounds the flask and the flask contains a heater plate for contacting the bottom of the forming tool insert. The ...
01/04/2005
6631630Hydroforming 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 method for shaping complex structures using composites such as ...
10/14/2003
6591649Method 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 corresponding to said three-dimensional pattern, and having edges corr...
07/15/2003
6513359Fluid 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, wherein the sheet metal (10) to be deep-drawn is guided transversel...
02/04/2003
6354125Apparatus and method for hydroforming workpieces
An apparatus for hydroforming workpieces includes a first (11) and a second tool part (13) and a press device (1, 6, 7) which closes and holds together the tool parts during a forming cycle. The first tool part (11) is mounted in the press device (1, 6, 7...
03/12/2002
6308545Method and apparatus for forming blanks
For shaping small radii in edge and corner regions of preformed workpieces or blanks, the invention provides for a postforming of exclusively said edge and corner regions by high liquid pressure. For performing the method an apparatus has a die part (form...
10/30/2001
6178796Device and method for shaping flat articles
A device and a method for shaping a flat article under high pressure, in which a one-sided forming tool is used together with a high pressure press equipped with a membrane. The one-sided forming tool comprises at least one first trimming device, a second...
01/30/2001
6079245Device and method for straightening out damaged metal and plastic elements
The invention concerns a device and a method for straightening out damaged metal and plastic elements. The device for straightening out a deformed element is characterized in that it comprises means for exerting pressure (3) on the deformed element (2), m...
06/27/2000
5927120Apparatus for performing a hydroforming operation
A hydroforming apparatus capable of deforming relatively large and thick-walled workpieces, yet which is relatively small, simple, and inexpensive in construction and operation, includes a pressure vessel that is disposed within a frame. The pressure vess...
07/27/1999
5829137Method for manufacturing wheels
A method for manufacturing a vehicle wheel includes the steps of providing a wheel rim and a spider and holding the spider inside the wheel rim. The wheel rim and the spider are positioned in a high capacity forming machine. At least one of a portion of t...
11/03/1998
5671629Hydrostatic forming device and process
A device and process for hydrostatic forming is disclosed. The device for hydrostatically forming an article comprises an expandable bladder for shaping the article; a fluid for expanding the bladder; and a device for moving the fluid into the bladder for...
09/30/1997
5649438Method and apparatus for pneumatic forming of thin foil materials
A method and apparatus using pneumatic pressure and reduced, controlled clamping pressure to provide reliable, high speed pneumatic forming of thin foil workpieces at ambient temperatures without lubricants or cull plates. Forming elements are provided wh...
07/22/1997
5638724Method of making a ceramic die
A method of producing a ceramic die for use in superplastic forming includes designing a free standing generally block-shaped ceramic monolithic die base with a bottom surface on which the die rests, and a top surface, opposite to the bottom surface, in w...
06/17/1997
5540075Method and apparatus for shock release of thin foil materials
A method is provided for releasing a thin foil workpiece from adherence with a resilient surface to which it adheres due to compression occurring in a forming operation. The method includes the steps of applying pneumatic pressure greater than ambient pre...
07/30/1996
5533372Controlled material flow hydroforming
A self-contained apparatus for forming metal sheet is adapted for operation within a standard double action press having a base and outer and inner vertically reciprocating slides. A basic die is mountable to the press and specific tooling is replaceably ...
07/09/1996
5415021Apparatus for high pressure hydraulic forming of sheet metal blanks, flat patterns, and piping
A method for augmenting an apparatus with pumps and a high pressure multiplier in such a manner that the apparatus can be altered to perform as a draw die press, hydroform press, tube bender, and as a hydraulic bulge form press by utilizing appropriate qu...
05/16/1995
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