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JP6075304B2 |
A hot press-forming method includes a forming step that clamps a steel sheet heated to a temperature not less than an austenite transformation temperature and press-forms the steel sheet into a desired shape by causing a forming concave ...
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JP2017024081A |
A low pressure system for cooling a ram bushing is provided. The low pressure system includes at least one check valve disposed on a T-coupling at a downstream side of a low pressure pump. The check valve allows pressure to be maintained...
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JP6068934B2 |
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JP6066234B2 |
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JP6068627B2 |
The invention relates to a method for producing a shaped sheet-metal part from a panel or a semifinished part made of a material consisting of steel with at least 60 wt. % Fe and a residual austenite content of at least 5%, in which the ...
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JP6057421B2 |
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JP6056981B2 |
In hot press forming a thin steel sheet K, when cooling the thin steel sheet K by supplying a refrigerant to an ejection hole (27) communicated from a supply path (28) inside a lower mold (12), precooling in which an ejection amount per ...
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JP6057422B2 |
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JP6059291B2 |
A die cushion device (200) of a press machine (100) includes: a plurality of cushion pads (210-1 to 210-N); a plurality of die cushion force generators (220-1 to 220-N) that supports the plurality of respective cushion pads (210-1 to 210...
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JP2017001040A |
To solve the problem of reduction in a material yield, in a metal mold for molding a work different in the orifice depth by the direction.In an orifice molding device for executing different operation by respectively independently consti...
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JP2016221569A |
To perform the drawing of a press molding having no constant deformation and wrinkles by quickly releasing a gripped state of the press molding caused by a punch and a pat conforming to the rise timing of a die by using an in-die locking...
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JP6050382B2 |
The invention relates to a device for producing shell components having at least a lower region, a frame region and optionally a flange region from a planar or preformed plate with a drawing die and a drawing punch, the drawing die havin...
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JP6051052B2 |
A pressed component is formed by pressing a preform having a tapered tubular portion and a sloping portion provided at an end of the tubular portion and curved in a circular arc. Pressing is performed by a forming die apparatus including...
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JP6050835B2 |
A heating device for hot stamping (1) is configured to heat a plated metallic material (9) while conveying the plated metallic material. The heating device for hot stamping comprises: a first heating tank (3A) provided in a conveyance pa...
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JP6050912B1 |
[Subject] A prevention method which occurs in a reducing work article of a high-tensile steel sheet and which places and breaks is provided. [Means for Solution] Tensile strength carries out reducing work of the 1st high-tensile steel sh...
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JP2016539009A |
The hot metal forming apparatus has a pair of molds that are movable relative to each other between the open position and the closed position. The mold has opposing metal forming surfaces that correspond to the desired shape of the press...
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JP6041899B2 |
A low pressure system for cooling a ram bushing is provided. The low pressure system includes at least one check valve disposed on a T-coupling downstream of the low pressure pump. The check valve allows for the pressure to be maintained...
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JP6032374B2 |
[Object] In forming a press-formed product (10) that is made of a high-tensile steel sheet having a tensile strength of 390 MPa or more, and has a substantially gutter-shaped cross section and an outward continuous flange (16), wrinkling...
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JP6032829B2 |
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JP6032373B2 |
To reduce the generation of cracking in the edge of the ridge flange (7a, 7b) and wrinkling near the base of the ridge flange and can suppress an increase in the pad load, while press forming the structural member (1) that is made of a h...
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JP6032750B2 |
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JP6037054B2 |
A hat shaped cross-section component manufacturing method includes: a supporting process of disposing a semi-finished formed component with a hat-shaped cross-section between a restriking punch and a restriking die, and supporting a top ...
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JP6036729B2 |
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JP6028956B1 |
[Subject] It is in controlling generating of wrinkles by shrinkage flange modification at the time of press-forming parts curved crosswise from a metal plate of high intensity, and generating of a crack by growth flange modification. [Me...
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JP6028885B1 |
This press molding method is a press molding method which manufactures a press-forming article from a board to be processed using a press forming device provided with a punch, Di, a punch pad, and The die pad , When the board to be proce...
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JP6024636B2 |
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JP6022229B2 |
A mold for hot stamping is disclosed. The mold may include: a base plate configured to receive and exhaust coolant, at least one lower mold and at least one upper mold. The at least one lower mold may be mounted at a surface of the base ...
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JP6022364B2 |
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JP6022363B2 |
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JP2016187813A |
To prevent intercrystalline cracks due to zinc heated to a predetermined temperature range as much as possible in the hot forming of a galvanized steel material.A hot forming method of a galvanized steel material includes: a step prepari...
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JP6020596B2 |
The invention provides technology for manufacturing a press component that has a hat shaped cross-section and that is curved in an L shape along the longitudinal direction using sheet metal having a tensile strength of from 500 MPa to 18...
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JP6016368B2 |
To provide a die for drawing capable of shaping a trihedral corner at an angle closest to orthogonal to high sidewall portions.A die (1) for drawing includes a punch (10) for inserting a material plate so as to form an inner shape of a p...
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JP6015639B2 |
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JP6012133B2 |
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JP6010328B2 |
A mold for hot stamping is disclosed. The mold may include: a base plate configured to receive and exhaust coolant; at least one appearance block mounted at a surface of the base plate and positioned along a shape of a product, the appea...
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JP2016179486A |
To maintain a clearance between metal molds by suppressing deflection generated in the metal mold by reaction on press molding in spite of avoiding an increase in cost and in size of a press device.A press device 10 related to this inven...
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JP6002205B2 |
An apparatus for checking an inclination 300 of a cushion pad includes: a plurality of height position detectors 220LF, 220RF, and 220LB that detect a plurality of respective height positions in a vertical direction at a plurality of pos...
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JP6002284B1 |
[Subject] A source of a drive containing a servo motor used for a die cushion device is used together as a source of a drive of a conveying machine of a press machine, and a conveying machine combination die cushion device which can rais...
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JP6002285B1 |
[Subject] A source of a drive containing a servo motor used for a die cushion device is used also for a slide cushion device, and added value of a comparatively expensive source of a drive is raised. [Means for Solution] Slide cushion de...
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JP2016173186A |
To enable a heating time for making a workpiece into a predetermined temperature to be shortened while suppressing heat quantity of a heater, and even in this case, enable the shape of a heating furnace to be downsized.A heating furnace ...
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JP2016168619A |
To provide a bottomed cylindrical component of high molding height and a manufacturing method thereof only by near flexure molding by using cold press molding which not only dispenses with paired special works to each of both dies (die a...
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JP5996198B2 |
To provide a die for drawing capable of shaping a trihedral corner at an angle closest to orthogonal to high sidewall portions.A die (1) for drawing includes a punch (10) for inserting a material plate so as to form an inner shape of a p...
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JP5996199B2 |
To provide a die for drawing capable of shaping a trihedral corner at an angle closest to orthogonal to high sidewall portions.A die (1) for drawing includes a punch (10) for inserting a material plate so as to form an inner shape of a p...
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JP5994055B2 |
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JP5990338B2 |
Provided is a far-infrared radiation multi-stage type heating furnace for steel sheets for hot stamping, the furnace including far-infrared radiation heaters having flexibility that are prevented from deflecting even during heating at te...
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JP5991493B2 |
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JP5990923B2 |
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JP5987934B2 |
This press forming method includes: a first step for forming such that linear length in the longitudinal direction of a flange portion undergoing stretch flange deformation is greater than linear length of the flange portion in a product...
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JP5987420B2 |
To make a desired temperature distribution in a to-be-heated member formed into a non-rectangular shape and in a to-be-heated member different in energizing direction between electrodes in thickness when heating the to-be-heated member b...
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JP5984300B2 |
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