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JP4505100B2 |
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JP4498027B2 |
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JP2010142865A |
To properly manufacture a cylindrical body in which the thickness of a cylindrical part is thicker than that of a flange. After pressing the base stock part 18 of the flange by the pressing surface 43 of a die 42 by the deflection of the...
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JP2010144479A |
To provide a uniform working quality by facilitating the working and enhancing the workability when a skirt part is formed at the longitudinal one end of an accessory for a metal external wall. This working tool for an accessory is provi...
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JP4495184B2 |
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JP4495194B2 |
A lower platen is provided with a hem punch and a slide cam. The hem punch is floating-supported to the slide cam. An upper platen is provided with a hem punch driver cam and a liner. The hem punch driver cam is used to change the hem pu...
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JP2010137265A |
To provide a plastic processing method for executing in order a burring step for forming a boss at the center hole brim part of a disc-like raw material by pressing the center hole brim part of the disc-like material onto the burring hol...
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JP4488405B2 |
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JP4486186B2 |
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JP4483437B2 |
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JP4476447B2 |
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JP2010120066A |
To eliminate the risk of breakage caused by vibration or the like and to evade the increase in weight and the number of parts.The method is provided with: a diameter widening stage where the diameter of the opening end part in a tube bod...
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JP4471533B2 |
A hemming machine has a single bending block (48) having a surface (48a) for carrying out a preliminary bending process and another surface (48b) for carrying out a final bending process, a lower block (14) for receiving an outer panel (...
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JP4473983B2 |
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JP2010517785A |
A load-bearing three-dimensional structure including a skeletal structure formed by a sheet of material having a plurality of bend lines, each bend line including a plurality of folding displacements, wherein the sheet of material is ben...
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JP4469784B2 |
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JP2010110811A |
To provide a method for crush-forming a pipe end capable of preventing the occurrence of cracks owing to local elongation of materials, and capable of processing a round part of a V-shaped tip of an approximately ginkgo leaf shaped cross...
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JP4464457B1 |
To provide a brim forming machine for a pipe material having a simple structure, high bending accuracy and excellent versatility. This is a processing machine 10 for performing brim forming on an end portion 1a of a pipe material 1, has ...
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JP2010104994A |
To provide a locking pawl calking apparatus for easily and surely calking a locking pawl so that the locking pawl is locked to the rib while bending the locking pawl being another member arranged on one surface of a base material with a ...
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JP4450447B2 |
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JP2010075931A |
To propose a method of press-forming for accurately manufacturing a thin-wall cylindrical metallic part having a flange on the outer peripheral surface by press forming.A pilot hole 11 is formed in the center portion of a press-forming r...
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JP2010075950A |
To achieve a method of forming a screw thread hole for efficiently stably obtaining a structure capable of securing strength of a screw.A chamfer part 33 is formed at an opening on a broken section side of a lower hole 14a formed at a pa...
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JP4439237B2 |
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JP2010058132A |
To provide a method for accurately manufacturing, by press-forming, a ring-shaped belleville spring having a central circular hole, whose inner surface is rounded.A small-diameter central circular hole is press-blanked by applying upper ...
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JP4435376B2 |
To produce the cost of a machine and equipment, to improve the working efficiency, and to reduce the product cost by forming a prepared hole and tapered surfaces on the obverse and reverse by sides series of pressing operations. This for...
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JP4425772B2 |
To install a discharging part simply and surely by using a pipe which is inexpensive and excellent in universal applicability in the case the discharging part is integrally installed on the discharging port in the fixed position of an oi...
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JP4424580B2 |
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JP4422200B1 |
To have a drawback that a conventional sheet metal bending tool cannot accurately adjust the thickness of a sheet metal due to a configuration in which a gap is forcibly used between a pair of rotary guide rings provided with through hol...
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JP4418838B2 |
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JP2010036218A |
To provide a hemming apparatus, wherein the working accuracy of a hemming work is raised, and the working speed is increased to raise productivity and also reliability is improved by reducing components.There is disclosed the hemming app...
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JP2010029877A |
To provide a hemming machine capable of reducing the wear of a guide roller itself, thereby improving its durability and reducing the manufacturing cost of the hemming work.The hemming machine is provided with: the working rollers for pe...
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JP2010005663A |
To provide a hemming metal mold achieving continuous hemming of car parts such as a door panel, an engine hood, a trunk lid and an end gate of a pickup truck, having different shape of some parts with high production efficiency by making...
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JP2009544472A |
The invention relates to a method for forming a steel container (1) having a curled open end, comprising the steps of: i) providing a steel cup (11); ii) deep drawing the steel cup (11) into a drawn container preform (12); iii) thin draw...
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JP4383532B2 |
To manufacture a heat radiator having cylindrical heat radiation fins excellent in heat radiation effect by a simple and inexpensive method. This method for forming the heat radiator comprises at least a pressing process in which an appr...
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JP2009279642A |
To enhance the insertable property of a pipe in a boss, and to suppress wear and damages of the pipe inserted in the boss.A burring die includes a first plate, a second plate arranged opposite to the first plate to hold a platy workpiece...
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JP4377973B2 |
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JP4375704B2 |
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JP4374335B2 |
The machine has suction pads holding body panels (20) and has a first set of rollers (14a) and a second set of rollers (15a). The rollers shape the edge (22) of an outer body panel (21) and fold it over the edge of an inner panel (24). T...
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JP3155434U |
To provide a peripheral wall plate for duct assembly in which twisting or distortion of a peripheral wall plate with a goby for assembling a square tubular duct is eliminated by attaching a reinforcing rib. A process of roll-forming male...
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JP4359821B2 |
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JP2009255158A |
To provide a method of burring a metallic material by which the workability of punching work of a metallic material and the formability of burring work after that are improved.In the method of burring the metallic material in which the b...
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JP4358584B2 |
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JP4352777B2 |
To enhance the reliability and durability of a shell type roller clutch, a shell type needle bearing or a needle bearing having a press holder by forming an outer ring 2a or the like of high quality having a flange 6c on an edge without ...
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JP2009241089A |
To solve the problem that, when performing a bending work, because the vicinity of the surface on the outside of the bent part is stretched and the vicinity of the surface on the inside is compressed, the compressed potion generates and ...
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JP4346951B2 |
A method for manufacturing a fuel inlet having a good sealing property and a screw structure formed in a precise position involves expanding one end of a long-length stainless pipe (metal pipe) using a cored bar, the tip of the expanded ...
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JP4343763B2 |
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JP2009226413A |
To provide a drawing device with which a stage for removing burrs which are generated on a cut surface is performable as a stage continued to the drawing stage and a cutting stage.In a drawing device which is provided with a roller mount...
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JP2009204216A |
To improve reliability of brazing of a connection part between a tube end part of a heat exchanger and a tank.An annular protrusion 4 is formed on periphery of the end part of a tube 3, and a sectional periphery of a top part of the prot...
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JP4329294B2 |
To provide press processing equipment which can carry out draw-back bending cam and punching to an end of the same workpiece with one turning cam without damaging a punching die formed at the turning cam by the running of a piercing punc...
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JP4328061B2 |
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