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JP3555904 |
PURPOSE: To efficiency bend a bar without causing a torsion on a bar by deforming a receiving base following the lowering of a punch and setting the axis of the bar and the axis of the center shaft of the receiving base in right angle. C...
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JP3555903 |
PURPOSE: To prevent a bar from slipping off and to prevent the generation of torsion on the bar by always setting the axis of the bar and the axis of a horizontal shaft of a receiving base in right angle with a positioning means. CONSTIT...
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JP2004141960 |
To provide a bending method of blade material and a bending apparatus of blade material which performs bending in such a manner that the unprocessed part is not left on the end part of blade material when the belt-like blade material is ...
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JP2004141959 |
To provide a method and a apparatus for bending blade material which performs bending continuously in such a manner that the unprocessed part is not left on the end part of blade material when the belt-like blade material is bent in the ...
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JP3553573 |
PURPOSE: To manufacture a spiral-shaped cylindrical stator with good finish and ease by assigning each magnetic plate in spiral shape and relatively rotating at least an inner end part of each magnetic plate in the spiral direction again...
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JP2004130321 |
To provide a cold-worked steel product with which even in the case of giving a load exceeding elastic range during use, the development of brittle fracture can be avoided.In the cold-worked steel product which receives the large plastic ...
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JP3544312 |
To provide a press forming machine for a crank shaft which permits torsional forming in a state that a backlash causing the variation of torsional precision is suppressed and which enhances torsional precision. In this press forming mach...
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JP2004114083 |
To provide a pipe forming apparatus with which the efficiency of the forming work of a tubular pipe is improved and the accuracy of the roundness of the tubular pipe by enabling working and forming within the same apparatus after evaluat...
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JP2004082161 |
To fold a suspension at a load bending part and an angle adjusting part with excellent accuracy.A laser beams irradiation area 211 is set in a load bending part 202 and an angle adjusting part of a suspension in a folding direction, and ...
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JP2004074200 |
To provide a method for producing a metal sheet having a curved surface by which even an inexperienced operator can work a steel sheet having a complicated curved surface shape such as a hull outer sheet into a targeted shape at the same...
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JP2004060727 |
To provide a thread structure capable of always providing sufficient tightening force.This thread structure is achieved by forming a threaded hole 23 in a metallic plate 22, forming a notch 25 on part of an inner-periphery edge 24 of the...
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JP2004058067 |
To easily manufacture a plate-made shift york by securing an inner diameter size of a shift-shaft bent part, a circularity and a surface roughness and reducing a working process only with a bending-work to a platy member, in a method for...
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JP3524727 |
To automatically bend a steel plate into a target shape with a shape of complicated curved surface such as hull outer plate. Many universal poles 20 are provided which support the steel plate 2, a member to be heated, from the lower side...
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JP2004052849 |
To reduce cost and weight, reduce processing time, and enhance durability by using a metal annular body as a spring seat.An annular groove 15 of predetermined depth is formed to a straight tip outer peripheral surface 5 of a female joint...
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JP3519452 |
PURPOSE: To surely keep the accurate bending dimension by compressing an increased mass of the thickness of a material to be worked generating in a bending time with a low pressure. CONSTITUTION: After a metal blank to be worked is inser...
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JP3515151 |
PURPOSE: To allow torsion forming on a work by forming nearly rectangular slits on a work remaining the oppositely facing minute connecting parts, making a line between these connecting parts as a folding line and thereby folding the wor...
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JP2004017141 |
To provide a machine for bending a steel bar into a helical shape which is used for working and forming a helical shaped steel bar which is added to a reinforcing bar to enhance the sticking strength of concrete to the reinforcing bar of...
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JP2003329072 |
To manufacture initially coned disc springs with better yield and reduced man-hours.A long strip-shaped material is sent in its longitudinal direction and bent in its widthwise direction to be annularly shaped. It is fitted in a cutting ...
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JP3491440 |
To correct the error of deformation-after-working caused by various thermal deformation factors in the lump and to raise working accuracy by correcting a strain generating formula for determining heating conditions using measured deflect...
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JP3490653 |
To provide the forming press for crankshafts capable of adjusting the twist angle freely and correctly, which is simple composition, low cost and high press accuracy. The pressure block 23 is mounted on the piston rod of a torsional cyli...
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JP2003311332 |
To provide a plate working machine with a bending function for bending a bend piece having two or more bends, and performing the bending different in bending direction, bending size, bending angle or the like by a same die.An upper die 2...
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JP3477043 |
To provide a manufacturing method for a hollow blade of a turbine engine, and a stepwise hot twist device used in its manufacturing method. A manufacturing method of a hollow blade for a turbine engine includes a stepwise hot twist work ...
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JP3474242 |
PURPOSE: To prevent a bending part of a metal plate from being damaged in its appearance even if a part of the metal plate is bent into a L-shape. CONSTITUTION: Plural long slits 3 are formed with machining in a same straight line on a m...
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JP3462527 |
PURPOSE: To reduce handling steps in assembling a large spheical tank by producing a composite plate blank and forming it into a spherical shape. CONSTITUTION: Commercially available metal plates or partial sheets 1a, 1b, 1c of similar p...
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JP2003211230 |
To realize a target shape of a curved surface, with practically sufficient accuracy even by the control of one control parameter.A distribution of bending principal strains giving a target shape of a curved surface is obtained (Step S1),...
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JP2003211228 |
To provide an apparatus and method of controlling a leg length of a hairpin tube such that the leg length of a hairpin tube is accurately measured and that adjustment is possible to make the length come within a tolerance, and also to pr...
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JP3451185 |
To surely bend and form a belt-like member without deforming into a saddle shape, moreover to uniformalized thickness, to improve flatness and to realize high-accuracy bending and forming. The upper and lower surfaces of the belt-like me...
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JP2003136148 |
To provide a heater apparatus 23 for use in performing a bending operation through heating and cooling of a steel member 1 of grooved sectional surface capable of performing an efficient heating operation and hardly producing any twisted...
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JP2003136149 |
To provide a method for bending and machining a steel member 1 having a grooved sectional shape within a plane through its heating and cooling capable of hardly producing a twisted state at the steel member, performing an efficient bendi...
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JP2003130568 |
To improve heat transfer efficiency and to manufacture a tube with a spiral fin shaped preferable to flow resistance.The tube 2 is rotated and simultaneously moved in the axial direction. A band plate having a twisted edge part is moved ...
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JP2003117632 |
To provide a method for manufacturing a stock 1 for a transition piece used for a gas turbine with a small amount of material.In the method for manufacturing the stock for the transition piece used for the gas turbine, a circular ring 2 ...
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JP2003118367 |
To buckle both webs to the outside or the inside when an aluminum alloy extruded material is pressed and crushed by a press in the vertical direction to a flange face in the aluminum alloy extruded material for a door beam constructed of...
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JP2003103308 |
To provide a method for controlling a twisting work capable of improving working throughputs by accurately reaching a target of a material to be worked to a predetermined target position and by transforming the target in a short period o...
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JP2003103319 |
To manufacture by a press-forming a formed article having an expanding interference shape which causes a stacked portion at the time of development.A portion shifted to walls 40a, 40b from a plate material 40 is formed by punching the pl...
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JP3407180 |
To automatically execute the binding of an angle and twisting. This angle forming machine is provided with a fixed frame 21 having a horizontal reference axis L extending in the front and rear direction and a vertical reference axis. M o...
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JP2003039110 |
To provide a device for molding a hollow tubular body which is lightweight and scarcely causes deformation as it has an excellent strength and its manufacturing process is simple, and to provide its product. A metallic strip 41 is shifte...
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JP3394791 |
PURPOSE: To simplify the structure of the cooing tube, and also, to allow it to have high cooling performance by inserting a spiral structure body formed by repeating a twisting process and a cooling process into the cooling tube, allowi...
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JP2003025021 |
To improve the working efficiency and the working accuracy when performing the work of giving the curvature to a plate-like work by the shot- peening, and other works concurrently.Before forming a compound-curved surface of an arbitrary ...
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JP2003025025 |
To form a plate-like work into a compound curved surface of high accuracy with a simple structure.When forming the plate-like work 63t into a compound-curved surface of an arbitrary shape by performing the shot-peening, the plat-like wor...
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JP3393185 |
To remarkably improve elongating formability of an aluminum alloy sheet subjected to age hardening. In elongating forming of an aluminum alloy using a punch 32 and a die hollow part 42 suitable therefor, elongating forming formability of...
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JP2003010920 |
To provide a method for manufacturing a multi-blade fan capable of efficiently manufacturing a plurality of constituent blade pieces by progressive working from a piece of backing material of a strip metal plate.After the plurality of co...
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JP3387211 |
PURPOSE: To obtain high welding strength between convergence electrodes and a lead piece. CONSTITUTION: A plate-like lead piece 4 to be welded to a pair of convergence electrodes 2 is bent in the same plane with the main surface 4b, and ...
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JP2003001352 |
To bend a band-shaped blade stock across the width without any unprocessed part on the edge-of the blade stock remaining.The band-shaped blade stock 1 is subjected to a compressing- stretching process in which the blade stock 1 is compre...
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JP3383370 |
PURPOSE: To curve the fitting piece so as to be projected to the outside by press working, in the fitting material which has a base part, and the fitting piece bent and formed from this base part, and by which the fitting piece is fitted...
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JP2002361330 |
To provide an inexpensive twister device capable of easily and quickly executing a die step change work of a die set and improving peripheral space efficiency. The twister device 1 is provided with twisting bars 4, 5 integrally connected...
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JP2002346640 |
To provide a bending device with simple structure for a long product, which can bend tubes, bars and hoops or the like with unsymmetrical cross sections. In the bending device for the long product with a bending head and a material feedi...
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JP2002346649 |
To provide a stretch forming apparatus which can stretch form large parts precisely. A tension mechanism 62 holds both ends of a guiding member 12 movably between a pair of arm members 28, 30 located on both sides of a material 6, and al...
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JP2002331573 |
To provide a bending method for a plate-shaped material by a laser which needs no mold for molding materials and can easily bring an object located out of reach of the hand, or a part of the object after assembly, into a state of being h...
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JP2002321017 |
To provide a reinforcing bar bending machine capable of two types of bending, one being bend with rounding and the other being bend with a step on the straight portion, securing rapidness and safety in performance.Above a rightward and l...
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JP2002316217 |
To provide a manufacturing method of a pipe having a knot part, by which two plates as preliminary formed bodies can be handled in a unit, the two plates are positioned to each other by overlapping and joining each first plate part of th...
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