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JP6721451B2 |
This member machining method comprises: preparing a rubber 30 and an aluminum pipe 20 which has a hollow shape extending in an axis L direction and an inner circumferential surface 21a of which has a cross-sectional shape, in the axis L ...
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JP6720240B2 |
To provide a manufacturing method of a casing member of an OLED display so as to prevent an end surface of a lamination material from exposing to an external side.By using a cutter, an edge part of a resin layer 104 is cut so as to be mo...
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JP2020093304A |
To provide a press brake mold capable of reducing residual stress at an end edge of a workpiece, and performing folding processing.In a press brake mold, a lifting member 11 that is relatively pressed and lowered by an upper table 25 of ...
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JP6712340B1 |
To reduce a difference in chamfering amount between a concave portion and a convex portion in a brake disc having a corrugated portion in which concave portions and convex portions are repeatedly formed over the outer periphery. In the b...
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JP6709681B2 |
To improve shape accuracy of a bent product 10 by enhancing mechanical strength of the bent product 10, while reducing weight and material cost of the bent product 10.An automatic program creation device 32 includes: an elongation amount...
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JP6707562B2 |
An apparatus for forming a curl on an article includes a first forming tooling having a first set of rollers mounted on a common head. The first set of rollers has a respective groove having a first groove radius. The apparatus further i...
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JP6703833B2 |
There is provided a method of making a metal panel assembly, the method comprising: - providing a first metal panel (10) having a first body portion (11) and a first flange (12) along a margin of the first body portion adjacent a first e...
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JP6702521B1 |
When a press-molded product having an overhanging portion is manufactured from a plate-shaped material, a blank process in which a surplus portion is attached to the outer shape of the developed shape of the press-molded product and punc...
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JP6699207B2 |
To provide a press apparatus that can reduce or eliminate failure in pressing.The disclosed press apparatus includes: a die body 111; a pressing member 112; a first support mechanism 113; a punch 121; and a blank holder 122. The die body...
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JP6698112B2 |
To provide an open type drum can capable of realizing a weight saving and a reduction in material cost while improving a pressure resistance and a drainage property of a barrel curl and a hood sealability.A method for manufacturing an op...
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JP6699579B2 |
To provide a press molding method which enables improvement of dimensional accuracy of a necking part while inhibiting occurrence of wrinkles in an outer peripheral flange part.In a press molding method according to an embodiment, a fron...
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JP6691710B2 |
To provide a chamfer processing method and a chamfer processing mold capable of performing a chamfer processing (or a deburring processing) of the cross section of a product easily while the material and the product are connected through...
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JP6686784B2 |
To form simply a bent R part to such a degree that a crack is not generated even if hemming processing is performed at a repair time, without lowering designability or the like.A bending tool 10 for a metal plate includes a body part 24 ...
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JP6684171B2 |
To manufacture a piston plate with fewer steps.A method of manufacturing a piston plate 6 includes the following steps (a) and (b). In the step (a), a plate 6 having a first opening portion at a center is prepared. In the step (b), a fir...
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JP6676448B2 |
To provide an assembly structure capable of suppressing occurrence of shavings.A hook-shaped locking piece 3 protrusively provided in a metal plate-based chassis 1 has a base part 3a and a continuous part 3b, and at an upper peripheral e...
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JP2020049498A |
To suppress increase in workload of an operator who holds a work-piece, and to achieve improvement in hemming workability.A punch metal mold 14 for hemming has a pressing part 24 which presses a bending flange Wf formed by acute angle be...
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JP2020049515A |
To provide a method of pressing, and an upper die, which enable burring of a plate-like workpiece.The method of pressing includes the steps of: (a) lowering a punch guide 15 vertically movably provided in a punch holder 7 in a punch pres...
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JP6670647B2 |
To provide a chamfering processing method and a chamfering metal mold capable of stably executing chamfering processing of the cutting edge of a work, by enlarging the area for pressing-fixing the work by upper-lower metal molds.In a cha...
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JP6665958B1 |
To provide a joint structure of a vehicle body skeleton component, a vehicle body skeleton component, and a method for manufacturing the vehicle body skeleton component, which improve the rigidity of a joint portion with another vehicle ...
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JP6661400B2 |
To provide a chamfering mold capable of suppressing generation of joints of a sagging trace caused by chamfering when chamfering is carried out along the cutting edge (ridge line) of a workpiece by a number of times.This chamfering mold ...
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JP2020032446A |
To provide a tube diameter expansion method which has few processing processes, forms an end face of a tube, which is inclined with respect to an axis, into a substantially linear shape, expands a diameter of the tube, and deviates the a...
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JP6656688B1 |
To provide a rotary press mold capable of setting a rotation center of a rotary mold with high accuracy. The rotary type is provided with a rotary type for forming a negative angle portion on a plate-shaped work and a fixed type which is...
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JP2020506054A |
The present invention relates to an air injection edge bender. The air injection edge bender has a sealing cavity. The air injection edge bender performs air injection and rotary pressure edge bending on the work in the sealed cavity. As...
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JP2020506055A |
The present invention relates to an air injection edge bender. The air injection edge bending machine has a rotary pressure edge bending device for edge bending a work, and the rotary pressure edge bending device has a rotary pressurizin...
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JP6654901B2 |
To realize space-saving by restraining an enlargement of the whole line, without largely increasing manhours, even if a part-joining process is incorporated into a press molding line.When starting processing of an upper mold shoe 5 after...
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JP6648624B2 |
To provide a burring processing device capable of realizing free molding of a corner part.A burring processing device for providing a molded part having a cylindrical elongation flange part by burring-processing a workpiece, comprises a ...
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JP6648867B1 |
Provided is a technique capable of easily and more stably suppressing stretch flange cracking at a curved portion. A top plate portion (2) having a curved outer peripheral edge portion (2a) curved so as to be recessed inward, a vertical ...
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JP6638983B2 |
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JP2020015071A |
To insert a male screw into a hole part without any inclination while increasing an amount of projection by burring and reliably fasten the male screw.A fastening structure includes a hole part with a burring part where female screw is f...
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JP6631759B1 |
It reduces molding defects such as cracks, wrinkles, and deterioration of dimensional accuracy of pressed parts that have a curved shape so as to be convex toward the top plate along the longitudinal direction. When viewed from the side,...
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JP6628858B2 |
In the present invention, a method for joining members involves preparing a steel component (10) having a bottom wall (11) in which a hole (15) is provided, and a hollow aluminum pipe (20). The aluminum pipe (20) is slipped through the h...
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JP2020001068A |
To provide a new hole expansion test method which can exactly evaluate press formability and so on even for a test piece having a strain history (plane strain).A hole expansion method by which a punch (P) is pushed into a hole (123) of a...
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JP2019218643A |
To provide a metallic heald produced by a processing method allowing carrier rod holes or eye holes formed in the heald to be processed with high productivity, and the method for manufacturing the metallic heald.In manufacturing a metall...
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JP6619654B2 |
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JP6602208B2 |
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JP2019177395A |
To acquire an end bent shape having less variation in a longitudinal direction of a steel plate.In a bending method of an end of a steel plate, bending molding of width direction end parts Sc, Sd is performed by a pair of molds 23, 24 fo...
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JP6590129B1 |
Provided is a technique capable of further reducing molding defects such as cracks, wrinkles, and deterioration of dimensional accuracy for a hat-shaped cross-sectional pressed part having one or more curved portions when viewed in a pla...
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JP6587698B2 |
workpiece bending method and a workpiece bending apparatus that allow setting of a trajectory of a bending implement based upon a pre-processed shape of a workpiece and an intended post-processed shape of the workpiece. The workpiece ben...
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JP2019527654A |
A square can with a top necking including a square can body (1) provided with a top wrapping (2) and a bottom wrapping (3) at the top and bottom, respectively, at the top and top wrapping of the reinforcing rib structure. A necking struc...
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JP2019155458A |
To provide a press molding method by which material yield can be improved without complication of processes.A press molding method in which an expansion process P1 has: first axis processing (introduction step) P210 such that a processin...
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JP6575036B2 |
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JP6573517B2 |
In a method for joining bumper members, a bumper reinforcement 10 including a rear inclined wall 14 provided with a hole 16, and a bumper stay 20 in a hollow shape are prepared. The method for joining bumper members includes the steps of...
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JP6566232B1 |
While intermittently transporting the steel plate (S) by the transport mechanism (21), the widthwise end portion (Sc, Sd) of the steel plate (S) is bent and formed a plurality of times by a pair of dies (23, 24). This is an edge bending ...
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JP6566231B1 |
While the steel plate S is intermittently transported by the transport mechanism 21, the widthwise end Sc and Sd of the steel sheet S are bent and formed a plurality of times by the pair of dies 23 and 24 to sc. This is an edge bending m...
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JP2019136736A |
To provide a flange molding mold and a flange molding method which performs molding processing of a flange on a cutting edge in a planar work-piece.In a flange molding mold provided with an upper mold 13 and a lower mold 15, the lower mo...
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JP6559141B2 |
An insert configured for flanging and widening of an end of a metal tube due to heat generated by the insert rotating within the end of the metal tube, the insert wherein the insert comprises a cylindrical body (15) configured to be coup...
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JP2019130576A |
To provide a flare tool capable of easily providing alignment means for aligning a metallic pipe.Alignment means is composed of a positioning pin storage hole 32d extending in the axial direction of a fastening clamp 18 and opening on it...
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JP6552468B2 |
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JP6551637B1 |
Provided is a press molding technique capable of reducing molding defects for a molded part having a hat-shaped cross section having a shape curved so as to be convex toward the flange portion when viewed from the side. The vertical wall...
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JP2019111567A |
To provide a press forming article which does not make a mold shape complex, does not perform heating treatment more than necessary, can suppress stretch flange cracking and does not cause defective forming.A manufacturing method of a pr...
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