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JP2004141959A |
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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JP3524727B2 |
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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JP2004512962A |
The method involves continuously bending a section of a spring band; cutting the bent section of the band into a spring rail; discontinuous reverse bending to reduce the internal stress of the bent cut-to length spring rail by subjecting...
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JP2004130321A |
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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JP2004114083A |
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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JP3519452B2 |
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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JP3515151B2 |
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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JP3506702B2 |
PCT No. PCT/EP93/00813 Sec. 371 Date Dec. 7, 1994 Sec. 102(e) Date Dec. 7, 1994 PCT Filed Apr. 2, 1993 PCT Pub. No. WO93/19864 PCT Pub. Date Oct. 14, 1993A universal positioning and support structure for tools usable by a machine for ben...
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JP2004060727A |
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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JP2004052849A |
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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JP3490653B2 |
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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JP3491440B2 |
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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JP3477043B2 |
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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JP3474242B2 |
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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JP2003329072A |
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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JP3462527B2 |
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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JP3451185B2 |
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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JP2003523285A |
Workpiece controlled shaping of metal, preferably in the form of plates or bands of high tensile limit, preferably above 1000N per square mm, comprises heat treating the workpiece in planar form along notches or zones to reduce locally t...
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JP2003211228A |
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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JP2003520136A |
Apparatus for manufacturing multi-layer metal feedstock material for stamping shaped parts eliminates the need for rolls of metal at the stamping site. Multilayer metal feedstock material is assembled from multiple rolls of metal stock, ...
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JP3407180B2 |
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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JP2003136148A |
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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JP2003130568A |
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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JP2003117632A |
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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JP2003118367A |
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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JP2003103308A |
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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JP3394791B2 |
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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JP3393185B2 |
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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JP3390447B2 |
A table for defining the position of a piece to be bent by means of an automatic system including a bending machine and a manipulator which can grip a piece to be bent comprises means (134) for defining a position for the location of the...
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JP3387211B2 |
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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JP3383370B2 |
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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JP3378923B2 |
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JP2003039110A |
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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JP2003025021A |
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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JP2003001352A |
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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JP2003500210A |
The present invention regards methods of projecting, producing and bending continuous stretches of circular cylindrical bodies, such as stretches of piping, handrails and rails for stair lifts. The invention also regards a tool for use w...
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JP3358159B2 |
To provide a forming press for a crank shaft high in safety, high in slide strength, excellent in pressing precision and permitting high cycle control. In this forming press for a crank shaft in which a torsional forging part and a shapi...
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JP3349834B2 |
The invention relates to an apparatus for automatically bending a strip-shaped blade material to a predetermined configuration. An oscillating arm (3) provided with a movable clamp portion (2) for holding the blade material (1) at the fr...
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JP2002331573A |
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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JP2002321017A |
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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JP2002316217A |
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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JP3333221B2 |
PURPOSE: To obtain a formed leaf spring different in spring load by fixing the spring forming part of a workpiece to a lower die and executing bending after the starting position of bending by the spring forming part of a workpiece is ad...
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JP3332052B2 |
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JP3321046B2 |
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JP2002224775A |
To provide a method for bending a flat loop-shaped wire-binding element, where a method using a flat loop-shaped element for wire-comb binding is so improved as to be suited to each different thickness of the stacked sheet material to be...
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JP2002224772A |
To make it possible to efficiently manufacture a ring-like member with high circularity.An intermediate molding 2 where a belt-like metallic material is bent into a circular shape and its end parts are mutually superposed by a prescribed...
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JP2002192238A |
To provide an apparatus capable of manually caulking a rock washer with efficiency and accuracy.A torque-controlling wrench 12 is provided on a rotating shaft 11 for tightening a polygonal head 3. The handle part 34 of the torque- contro...
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JP2002178034A |
To provide a bender capable of bending a sheet metal to impart a stepped shape of high accuracy.A punch 6 having a bending surface 6a is fixed to the lower surface of the die 4 of an upper die 2, an ironing holder 7 is freely supported b...
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JP3295109B2 |
PURPOSE: To easily bend material to be worked with good bending accuracy by irradiating a bending part of the material to be worked with heating beam, heating it, then, bending it with a bending machine. CONSTITUTION: A laser beam LB osc...
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JP2002172432A |
To provide a pressing die unit having an excellent press formability capable of further restraining a reduction of the plate thickness excellent in slidability of a cut steel plate.The pressing die unit is provided with an upper die 1 wh...
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