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7621201 |
Hot forming tools for aluminum and magnesium sheets
A ferrous metal tool is provided for the forming of light metal sheet workpieces at elevated temperatures, with the forming surface of the tool prepared to minimize friction and adhesion when...
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7614270 |
Method and apparatus for superplastic forming
The present invention provides a method and apparatus for forming a ductile sheet or work piece into a part or component. The method includes using a forming apparatus wherein the workpiece is...
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7587920 |
Hydro forming apparatus for making U-shaped products
A hydro forming apparatus comprises a lower base; a lower mold mounted on the lower base and provided with an U-shaped lower cavity; an upper mold provided with a U-shaped upper cavity...
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7574884 |
Apparatus and method for sheet material forming
The present invention relates to a heating and forming apparatus for sheet material and method for rapid heating and shaping of sheet material. The apparatus comprises a first and second...
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7520153 |
Bursting disk and method for manufacturing the same
A method for manufacturing a bursting disk from a sheet or foil is disclosed. The bursting disk has an edge for clamping the bursting disk in a clamping device and a middle region enclosed by the...
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7484393 |
Profile mother pipe for hydraulic bulging, hydraulic bulging apparatus using the same, hydraulic bulging method, and hydraulic bulged product
A profile mother pipe for hydraulic bulging of the present invention has a peripheral length whose outer diameter is gradually increased or decreased from one end to the other end in an axial...
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7472572 |
Method and apparatus for gas management in hot blow-forming dies
A method and apparatus for forming a sheet of ductile material by superplastic forming is disclosed. The method is directed to first creating a pre-form by mechanical forming in which the pre-form...
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7454936 |
Method and device for forming an essentially flat metal blank to produce a thin-walled, shell-type body, and the use of same
The invention relates to a vacuum-assisted method and a device for forming an essentially flat blank ( 12 ) of metal into a thin-walled, shell-type body ( 14 ), especially for performing the method...
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7363790 |
Method for vaccum assisted preforming of superplastically or quick plastically formed article
Method of preforming and forming a sheet metal article from a preheated blank of sheet metal uses opposing dies including a punch having a punch surface defining a final configuration for the...
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7343768 |
Method of net-forming an article and apparatus for same
A method of forming an article such as a helical gear and an apparatus for forming the article are provided. The method includes applying pulsating pressure downward to extruding the work piece...
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7320239 |
Forming tool for multiple-thickness blanks
An apparatus for forming blanks having two thicknesses separated by a blank step includes a forming tool defining a binder surface that is characterized by a tool step, a first region on a first...
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7318333 |
Superplastic forming tool
A superplastic forming tool for forming a workpiece to make a part. The forming tool includes a forming die having first and second die members. At least one of the die members having a cavity...
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7313939 |
Hydroforming machine and a method of hydroforming
A hydroforming machine characterized by a die 2 having an opening on the upper surface and a fluid tank 2 a filled with fluid, a holder 3 being able to hold a periphery part between the die ...
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7284405 |
Pressure controlled fluid pressure extrusion method
The lower part of a material to be molded forms a lower, seal with a die. A punch applying a molding force to the material forms an upper seal with the perimeter of the die. The space between the...
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7284402 |
System and process for superplastic forming
A system and method for superplastic forming a workpiece. The system includes a superplastic forming cell formed of a plurality of individual stations or modules, each one performing a specific...
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7266982 |
Hydroforming device and method
An apparatus ( 10, 110 ) and method to form a workpiece ( 32, 132 ) into a useful product ( 28, 128 ) using a pressurized fluid ( 14 ), also termed as “hydroforming”. The workpiece may be a...
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7234481 |
Safety pressure relief device
A safety pressure relief device comprises an annular flange portion ( 22 ), a concave/convex dome portion ( 24 ) and a transition portion ( 26 ) between the flange portion ( 22 ) and the dome...
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7210323 |
Binder 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...
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7194883 |
Method for forming of tubular work-pieces using a segmented tool
The hydroforming tool of the present invention comprises a pair of upper and lower tool inserts having open axial ends and defining an elongated cavity there between when the tool inserts are...
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7188499 |
Method and device for processing outer shape of can shell
A pressing member 44 is pressed from the outside against a peripheral wall of a can shell 4 whose interior is maintained at a predetermined pressure by gas, to form a recess-deformed portion ...
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7150177 |
Hydraulic 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...
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7150170 |
Apparatus and process for hydraulic high-pressure forming of a sheet
An apparatus for hydraulic high-pressure forming of a sheet, the apparatus having a top tool and a bottom tool as well as at least one pressure generating unit arranged between the press ram of a...
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7124618 |
Clamp 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...
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7112249 |
Hot blow forming control method
A sheet material is gripped at its edges and hot blow formed by a pressurized working gas against a forming tool surface. The flow characteristics of the material are determined at increasing gas...
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7100259 |
Method of metallic sandwiched foam composite forming
Disclosed is a method of forming metallic composite structures The method utilizes superplastic and quickplastic formation methodologies in conjunction with the use of appended engineered metallic...
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7096700 |
Method for performing a hydroforming operation
A method for performing a hydroforming operation on a hollow workpiece includes the initial step of filling the interior of the workpiece with a hydroforming fluid. The pressure exerted by the...
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7080535 |
Spring-loaded part extractors for heated forming tools
A hot blow-forming apparatus includes opposed and complementary forming tools adapted for hot blow forming a surface of a heated sheet-metal workpiece against a forming surface of one of the tools....
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7047779 |
Curvilinear punch motion for double-action hot stretch-forming
A method for forming sheet metal articles, such as automotive body panels, having complex curvatures. Opposing, complementary, pre-form and finish-form tools are used in a single press. A sheet of...
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7028519 |
High throughput quick-plastic-forming
A method of quick-plastic-forming a component from a sheet metal blank in multiple forming stages of single-action tooling along a transfer line. The blank is transferred from a prebending station...
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7021099 |
Extraction system for hot formed parts
The distortion-free removal of a heat softened sheet metal part from a heated forming surface is enabled by the elevation of lift pads in the forming surface. Strategically located and sized pads...
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7007531 |
Forming tool for hydromechanically deep-drawing workpieces from sheet metal blanks
A forming tool ( 1 ) for hydromechanically deep-drawing workpieces from sheet metal blanks ( 2 ), the tool comprising a water tank ( 3 ), which acts as a lower tool and can be filled with a liquid...
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6961998 |
Method for producing a hollow shaft, in particular a camshaft and a camshaft produced according to said method
Hollow shafts, and particularly camshafts, are produced using an internal high-pressure forming (IHF) process. Cams and/or machine elements are mounted at intervals onto the outer surface of the...
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6955070 |
Device 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...
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6952941 |
Apparatus and method for forming an article and performing a secondary operation in-situ
An apparatus and a method for forming an article and performing a secondary operation on the article in-situ. The apparatus includes a closure and a die having a cavity. A source of pressurized gas...
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6941786 |
Component specific tube blanks for hydroforming body structure components
A hydroforming system includes a dual conical tube formed from a blank. The dual conical tube has a first end, a second end and a central portion positioned between the first and the second ends....
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6941785 |
Electric fuel pump condition monitor system using electrical signature analysis
A pump diagnostic system and method comprising current sensing probes clamped on electrical motor leads of a pump for sensing only current signals on incoming motor power, a signal processor having...
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6938449 |
Hydraulic 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 21 b with a hollow section 21 a formed on a lower die 21 filled with hydraulic fluid A....
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6923030 |
External activation mechanism for pressurized forming cavity
A mechanical mechanism is disclosed for supplementing the action of a pressurized working gas in hot blow forming of a sheet material. Opposing complementary heated forming tools grip the sheet...
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6910358 |
Two temperature two stage forming
A method is disclosed for two-stage stretch forming of a sheet metal blank workpiece between a preform tool with a concave cavity and an opposing finish-form punch tool. Both tools are...
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6886383 |
Method for stretch forming sheet metal by pressing and the application of gas pressure
A method is disclosed for forming sheet metal articles, such as automotive body panels, having significant curvatures in front-to-back and side-to-side directions. Opposing, complementary,...
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6880377 |
Method for double action gas pressure forming sheet material
A method is disclosed for forming sheet metal articles, such as automotive body panels, having significant curvatures in front-to-back and side-to-side directions. Opposing, complementary,...
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6865917 |
Flanging and hemming process with radial compression of the blank stretched surface
A method and tool for forming a hem flange pre-hem and a final hem on a sheet metal panel wherein elastomeric tooling elements are used to apply radial compression during a forming operation. The...
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6843089 |
Method of producing surface features in sheet metal using superplastic forming
The present invention provides a method of embossing or imprinting patterns in the surface of a sheet metal article using superplastic forming at suitable SPF temperatures. A template having a...
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6843088 |
Raised surface features for hot blow-forming tooling
Apparatus and method for hot blow-forming an article from a blank of sheet metal. Simultaneously, a surface of the blank of sheet metal is formed against a form tool body that partially defines a...
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6837088 |
Blow-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...
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6832501 |
Method for producing components using a flowable active medium and a forming tool
The invention is for a method to produce components from a blank made of deep-drawable material using a free-flowing action medium. The method consists in clamping the blank in a forming device in...
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6820449 |
Apparatus for fabricating a hollow body
An apparatus for making hollow bodies, preferably components made from blanks, includes a press table, a slide movable upwardly and downwardly relative to the press table, a tool upper part...
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6807839 |
Cold folding method for a hollow tube of magnesium
A method cold folds a hollow tube of magnesium material. The method includes providing an inner rib at opposite sides of a hollow square tube made of magnesium material, accommodating the square...
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6805011 |
Sensor for recording extension and stress in solid material
A force transducer is inserted into a small boring inside a test object. Inside the boring, it can measure the elastic extensions caused by the surrounding stress matrix. The force transducer is...
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6776953 |
Method and device for forming a hollow body
The invention relates to a process and apparatus for the forming of a hollow body. The process includes providing a forming mold comprising an upper mold and a lower mold which form a mold cavity...
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