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WO/1989/002792 |
Method for forming an adjusted surface sheet element (1, 2) from a planar sheet of titanium or titanium alloy by hot pressing in a press (17). The planar sheet element is preheated to a temperature at least equal to 730�C, the preheate...
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WO/1989/002322 |
In a device for edging and folding metal sheets, a press roller (9) secured to operating levers (6) can be brought into at least one additional position. The metal sheet (11), together with a cylindrical shell (10) is fixed between the f...
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WO/1988/009703 |
This invention discloses a method of bending a band knife, comprising the step of forming a bent portion of a predetermined angle on a band knife (1), which is sent out intermittently from an outlet of a mold (20), by using a push member...
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WO/1988/005350 |
A method of producing lightweight metal structures provides for feeding a strip material from a coil (2) and straightening it. Then, before bending, the strip material is cut along a zigzag line into at least two elements (5, 6, 7), the ...
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WO/1988/005351 |
A method of producing lightweight metal structures provides for feeding a strip material from a coil (2) and straightening it. Then, before bending, the strip material is cut along a zigzag line into at least two elements (5, 6, 7), each...
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WO/1988/004967 |
Machine (1) for cutting and bending of sheet material, which comprises a snaker built of two members (14, 40) and two cutting edges (41, 42), one member (40) of the snaker and one cutting edge (41) being supported by a first beam (24). T...
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WO/1988/004968 |
A pair of slit type horizontal fin rolls (18) and a pair of vertical side rolls (19) having such a shape as having the conventional vertical side roll (19) formed by contracting its center portion are utilized, and due to the constructio...
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WO/1988/001916 |
A computer-based control for a press brake (1) of the type having a ram (6) for bending a sheet metal workpiece to a desired bend angle. The control incorporates a teach mode which collects ram force and position data during the bending ...
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WO/1987/005838 |
The press comprises a flanging device (1) equipped with a retainer, a slide (5) with a gripping system (16) for the metal sheet and a rotary drive (37) for the latter. To reduce dead time and improve accuracy of flanging, the flanging de...
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WO/1987/005651 |
A cold-forming method for thinning localized, longitudinally extending portions of sheet metal (21) by lateral shear deformation without any substantial longitudinal deformation. With such method, it is possible to produce elongated memb...
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WO/1987/004374 |
An edging machine which comprises a frame (1) supporting a counterpart (2) and a hydraulically operated pressing tool (3) by means of which a sheet is pressed against the counterpart (2). For the manufacture of a profiled sheet without a...
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WO/1987/004096 |
A forming roll for pipe mills, which is used to form pipes such as a seam-welded pipe by means of the continuous roll forming, and to a method of and an apparatus for forming strip material by using this forming roll. The forming roll ha...
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WO/1987/003518 |
A method of and apparatus for press forming sheet metal into articles, such as roof cladding element (10), having intersecting fold lines. A strip of metal is advanced through a forming die which has first (20) and second (21) stages and...
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WO/1987/001977 |
Apparatus (10) for the roll forming of sheet metal components wherein a plurality of roll forming stations (12) are mounted on a support frame (18, 19, 33), each station having a pair of complementary forming rollers (17, 17a). Individua...
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WO/1987/000773 |
A roll forming process utilizes as a feedstock hot rolled steel strip (1) and during the roll forming process the surface of the steel strip (1) is cleaned and polished by the combined effects of deformation and frictional contact betwee...
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WO/1986/000102 |
A process designed to make it possible to manufacture a seal-holding profile, meant especially for the panels of industrial cubicles, and obtained from the same piece of plate metal. The profile obtained from this process is also describ...
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WO/1985/005297 |
The method and apparatus for rolling a section of metal plate (W) into a cylindrical pipe section wherein leading and trailing edges of said plate section are pre-crimped to the final desired radius of said cylindrical pipe section, feed...
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WO/1985/000766 |
Improved bending machine for forming bends on the edges of sheet metal panels. In a bending machine in accordance with the invention comprising clamp means (8), for clamping part of the sheet material (5), and forming tool (3), with whic...
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WO/1984/002666 |
A structural member of the type consisting of a metal strip (12) of non-flat cross-section is made by coiling a metal strip of substantially flat cross-section into a roll (11) for rotation in a carrier box (10), a section of the strip b...
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WO/1984/002094 |
A plate bending apparatus for use with a work bench, which comprises a generally rectangular plate clamping member (1) having a rectilinear bending edge (2), a pair of adjustable clamping devices (4), one at each end of member (1) for cl...
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WO/1984/001911 |
Apparatus for continuously punching, shearing and forming sheet metal (10) comprising a frame, and punching (16), shearing (18) and forming (20) stations thereon. Rollers (38, 52-61) are provided for continuously feeding sheet metal thro...
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WO/1984/000392 |
An elongated sheet metal panel (96) comprising a first portion including a major central portion (96A) having transverse corrugations formed therein to a depth of at least about 0.100 inch, a transition portion (96B) adjacent said first ...
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WO/1983/003987 |
A roll edging machine for folding up a flange along the longitudinal edges of a sheet metal panel comprises two sets (16; 17) of pairs (18; 19) of driven forming rolls (18A, 18B; 19A, 19B) positioned at opposite longitudinal edges of a h...
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WO/1983/003382 |
A hydraulic press including a frame with platens, at least one of which is carried or formed by a pressure plate structure (47) adapted for transferring pressing force to an object between the platens, is adapted such that said structure...
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WO/1983/002077 |
A hand held tool for use by a panelbeater when folding over an edge of a metal sheet comprises a tool body (6) with a flat upper face (11) and a die block (13) which is reciprocally mounted for movement parallel to the upper face (11). T...
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WO/1982/003805 |
A sheet metal folding tool comprising a guide tongue (2) in space parallel relationship to a folding tongue (1) at lest partially in register therewith. The internal faces of such tongues defining a channel therebetween, such tongues bei...
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WO/1982/002914 |
Novel panel and panel assembly for use in building-type structures, together with panel forming apparatus which are especially suitable for using portable, point-of-use, continuously operable, roll-forming techniques. One panel disclosed...
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WO/1982/002360 |
The hydraulic press comprises a fixed apron (4) and a moving apron (5) and incorporates, inside the fixed apron, pressure means (2) to compensate the deformations occuring during the operation of the press. A processing central unit (7) ...
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WO/1982/000607 |
At present, accurately measured, thick-walled pipes to be used as rolls must be manufactured in a plurality of working steps. The manufacture of pipes of accurate diameters is complicated e. g. due to inner stresses in pipe blanks which ...
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WO/1981/003631 |
Method and apparatus for preforming the long edges of steel plate (11) prior to manufacture into pipe (47) by the U-O process or the like by utilizing plate of a width exceeding that required for pipe of a given diameter by an amount at ...
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WO/1981/002535 |
Bending of shaped sheet metal, which shows alternatingly occuring longitudinal ridges and valleys, the lateral portions of which constitute lateral portions of the ridges, about an axis, which extends perpendicularly to the longitudinal ...
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WO/1981/001258 |
The method can be used for manufacturing side plating. The method of bending the metal sheet consists in heating and bending thereof with the use of gravity. The stage heating is done by means of high-frequency currents, whereas the shee...
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WO/1981/000222 |
This method is used for bending sheets having a continuous profile in one direction, for example sheets having a trapezoidal or rectangular profile. In order to achieve an economical bending of such sheets without decreasing their streng...
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WO/1980/002810 |
A forming leveller establishes one or more datum or reference planes (227, 226, Figs. 7, 9 and 10, for example) to facilitate subsequent roll forming. The reference planes may be established on the same side or opposite sides of the stoc...
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WO/1979/000805 |
Process and device used for adjusting the depth of penetration of a hydraulic folding press. They allow to adjust the depth stop (3) of the pressure bed (4), without being necessary to lift the pressure bed from the workpiece. The depth ...
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JP2012016742 |
To provide a method for manufacturing a cylindrical shaft with a stabilized shape.The method for manufacturing the cylindrical shaft 16 includes: a cylinder working step of bending a metal plate cylindrically so that a pair of opposite e...
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JP2012006083 |
To provide a novel roll forming method of parallel bending type, capable of improving a demerit wherein the center of a forming load in an FF forming method exists in a cluster forming part weak in a forming function, without impairing a...
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JP2011245589 |
To provide a toolbox made of steel that is strongly built and easily bent in the manufacturing.The toolbox has a body 1 and a lid 2 and, in an opening of the body 1 and the lid 2, there are formed square tubular parts 21, 36 having end p...
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JP2011245506 |
To provide a step bending processing device which can perform step bending processing by one process, can improve the quality of products, and can lengthen the life of a die.A parted angle α formed by an inclined plane continuous from a...
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JP2011235352 |
To provide an automatic handling device of a bending member, which drastically shortens a working tact per workpiece by suppressing a grab change of a workpiece down to a minimum frequency, thereby increasing the work efficiency and redu...
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JP2011235301 |
To provide a method of predicting the failure in a bent part of a metal sheet at press forming excellent in accuracy.When performing bending by pressing a taper-shaped punch 2 through the metal sheet 3 in the state where tension is appli...
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JP2011235324 |
To provide a squeeze mill for producing an electric resistance welded tube capable of aligning top rolls of a squeeze roll stand with a welding seam by moving the top rolls in right-left and horizontal directions.The squeeze mill for pro...
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JP2011235290 |
To provide a bending machine in which dies are easily changed, since anyone can safely lift a heavy die, moves it from the storage place of dies to a mounting position or, oppositely, moves it from the mounting position to the original s...
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JP2011230141 |
To provide an apparatus and a method capable of stably forming a high-quality steel pipe by preventing variation in the outer peripheral length of a material to be formed even in high-speed welding in forming the steel pipe.The apparatus...
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JP2011230172 |
To provide an apparatus for cold rolling, which prevents an embrittlement phenomenon during forming, removes residual stress from a formed article with a finished or nearly-finished cross section without having a bending process, and for...
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JP2011218388 |
To provide a press forming method by which the wall warp in vertical wall parts of a press-formed part is prevented.In a method for press-forming a metallic member product 7 having a hat-shaped cross-sectional shape which has a ceiling p...
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JP2011219241 |
To preventing the lowering of conveying accuracy.A conveying apparatus includes: a conveying roller that an opposing pair of tips of a metal plate are formed in a cylindrical shape to abut on or formed closely each other and that a high ...
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JP2011218443 |
To provide a panel folding device high in accuracy and reliability by automatically adjusting and making up a deficiency of ram pressing force for every filling-up of a die according to a difference in workpiece bending diameter.In the p...
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JP2011206800 |
To suppress the generation of breaking when bending a tabular forming plate in a circular arc using a press forming method in a press forming machine.The press forming machine 2 for a circular steel pipe pillar is prepared with two roll ...
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JP2011206823 |
To improve the accuracy of bending by enabling a pair of die members to evenly rock while the leading edges of the die members keep to be joined to each other without being separated from each other even when offset load acts on the die ...
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