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JP3515493B2 |
To provide a plastically working method which can easily give a shape with a sectional area thereof gradually reduced to the tip of a metal bar. The bar 3 is stored in a forming groove 2 provided in a die 1 with an end 2a thereof having ...
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JP2004100916A |
To provide a linear motion guide bearing device capable of securing precision required to satisfy a function as a bearing in case of molding raceway grooves of a guide rail and a slider by rolling work and furnished with load capacity en...
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JP2004090083A |
To provide a thread rolling apparatus with which even in the case of rolling the teeth of a spline etc., a stable working can be performed at a low cost.In the thread rolling apparatus for performing the rolling to the spline etc., by mo...
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JP2004090085A |
To obtain a roll-forming die for producing a self lock bolt with which a self lock bolt with a slit part having loosening preventive effect is easily and inexpensively produced, and to obtain a self lock bolt 10 which has a slit part for...
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JP2004508957A |
A method is proposed for forming a toothing (7) and/or a profile (5) onto a shaft (3). This is distinguished by the following step: forming the toothing (7) and/or the profile (5) onto the shaft (3) mounted in a unit (1).
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JP2004089825A |
To prevent degrading of the yield due to waste coating of a coating agent in a region outside of the coating part when the coating agent is to be applied on the objective member to be coated having a wider dimension than the coating part...
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JP3508966B2 |
To form a chamfered part on the corner of a gear simultaneously with the roll forming of the gear by pressing a backup roller provided with an inclined part for chamfering at the position oppositely facing the chamfered part of the gear ...
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JP3510184B2 |
To provide a spring lock washer incorporated bolt in which a spring lock washer can be incorporated into the bolt before a heat treating stage by selecting the material for increasing the temper softening resistance of the spring lock wa...
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JP2004082186A |
To provide a method for manufacturing a deformed stock of a section similar to a product shape (a deformed bar) without via a long manufacturing process.In the method for manufacturing the deformed stock having at least one step of diffe...
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JP2004074174A |
To provide the manufacturing method of a double heat transfer pipe by which a long size double heat transfer pipe is manufactured.A groove connected in the longitudinal direction is cut on one side by rolling a base bar 1 with a grooved ...
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JP2004076909A |
To obtain a method for manufacturing a kinetic pressure sleeve bearing and a kinetic pressure sleeve bearing capable of forming a precise kinetic pressure groove on an inner wall face in a short time with a small facility without deterio...
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JP2004074163A |
To roll a plurality of gears having different specifications integrally on the same axis and accurately at the same time.In a gear rolling apparatus, teeth corresponding to a tooth form of each flat die 3-6 are imparted to a base stock f...
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JP2004066272A |
To provide a ball screw form rolling die for enhancing the durability by reducing stress concentration generated in a boundary part between a columnar part and a bevel lead.A conical bevel lead 13 formed on one end of a columnar part 12 ...
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JP3502790B2 |
To provide thread-rolling dies for miniature screw, with which the machining cost of the screw part in the die for forming a male screw in the miniature screw having ≤ almost 3 mm pitch can be reduced. The thread root width W of a thre...
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JP3501387B2 |
PURPOSE: To mass-produce a bolt at a low price and to reduce the engaging resistance by providing a surface of a threaded shank ranging form its underhead part to its shank-end, with a groove-like flowing passage and forming a top of an ...
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JP2004060802A |
To provide a manufacturing method of a guide rail for a linear guide capable of manufacturing the guide rail for the linear guide having a required hardness accurately and in a relatively short time.When a thermal treatment is applied to...
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JP3499233B2 |
To provide a thin and high-accuracy metal cylindrical body which can be used as a photoreceptor roller or a fixing roller for an electrophotographic printer or a copying machine. A metallic material having heat conductivity and high dura...
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JP2004504944A |
The present invention is to a lightweight threaded bolt type fastener having a shank with a large diameter portion and small diameter portion connected by a transition portion; a thread is roll formed on the small diameter portion and te...
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JP2004050250A |
To provide a technology for controlling the length of an incomplete threaded portion formed in a rolling starting portion not longer than a permissible value only by the through-feed rolling.A rolling method of performing through-feed ro...
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JP3498312B2 |
A cold roll forming method for reducing the diameter of a metal pipe and a metal pipe product having the diameter reduced by such method are disclosed, wherein the method includes the steps of passing a raw metal pipe through a set of pr...
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JP2004042259A |
To realize such a grooved roll and its manufacturing method by which paper feeding in a contact area between grooved rolls is carried out as uniformly as possible.In particular, the manufacturing method of the grooved roll for a corrugat...
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JP2004042114A |
To provide a method for roll-forming a rolling body rail groove with which the rolling body rail groove having high forming accuracy can be roll-formed to a guide rail blank.In the roll-forming die for producing a direct-moving guide rai...
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JP3495915B2 |
To provide a cold forming device of a metallic ring by which the circularity of a bearing race is increased and the metallic ring is manufactured with excellent productivity. A forming roll 10, a mandrel 20, a mandrel receiving roll 30, ...
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JP2004034050A |
To provide a toothed wheel shaft having splines and gears which can be easily built and flat dies for rolling to work such toothed wheel shaft.An extension part 15 from an end 15a of the bottom up to a front end 16 near the shaft part of...
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JP3491129B2 |
To provide a rolling method for obtaining a special shaped steel bar having extremely high dimensional accuracy by satisfying the degree of fullness in the nodal grooves of a roll and simultaneously preventing excessive over-filling in t...
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JP3490489B2 |
PURPOSE: To cost advantageously produce precision racks in a time saving manner and simultaneously to achieve the improvement in the quality of the racks as far as possible. CONSTITUTION: Relative movement is executed in a feed direction...
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JP2004017157A |
To provide a die for manufacturing a not-straight-preventive bolt with excellent accuracy at low cost, and a method for manufacturing the same.Notch shape forming parts of the bolt rolling number are formed on a complete thread starting ...
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JP2004003840A |
To provide a heat transfer fin structure of a heat exchanger for a gas boiler capable of increasing heat transfer area to extremely increase heat exchanging efficiency, reducing cost of a product, and compacting the product.The gas boile...
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JP2004001103A |
To provide a thread forming tap with a stable lifetime by preventing the threads of the tap from being chipped.The thread forming tap 1 has a screw part 2 with a tapered bevel lead 3 whose tip is narrower and a parallel screw part 4 cont...
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JP2004001044A |
To provide the structure of dies with which a screw is easily manufactured from a screw base stock having a circular cross section by roll forming regardless of the size of the screw.In the structure of a pair of dies for rolling non-cir...
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JP3483185B2 |
To provide a groove machining tool capable of arranging a spherical body circumferentially at substantially equal intervals and replacing the spherical body without causing any deformation to the area of the spherical body where the groo...
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JP3484334B2 |
To provide a cold rolling method for ring bodies by which internal cracks are not generated and good ring-shaped products having high circularity are obtained. In the cold rolling method of the ring bodies in which rolling accompanying e...
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JP3483845B2 |
To enable an external thread to be form-rolled even in the case of a thin- walled gas pipe or a thin walled SUS pipe. The core jig 11 is used to be inserted in the pipe end of a thin walled pipe when cutting an external thread for pipes....
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JP3475044B2 |
To improve economical efficiency and productivity of a damper pulley excellently, by molding a damper mass and a pulley main body, by reducing a cost and shortening a work time with a high yield rate, from a metal material of single kind...
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JP3472069B2 |
To prevent a grooving ball from deviating with respect to a tool shaft or falling out. The tool shaft 3 is provided with a shaft part 3a, and respective balls 31 are held between ball holding members 41, 42 and held with the shaft part 3...
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JP2003334630A |
To output a command signal for discharging defective products, by detecting deviation of a screw phase or a defective product such as a ring screw.In a rolling inspection system, a rolling start timing signal band (formed by the signals ...
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JP2003334629A |
To provide a device and a method for manufacturing a highly accurate ring member simply with a low power.The method for manufacturing a ring member 1 by rolling includes the following processes (1) to (6): (1) a ring blank is heated; (2)...
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JP3467397B2 |
To prevent the involving of a blank into rolls and to improve the shape of a product by arranging a guide apron at the outlet side of the embossing rolls and forming a thickness reduction part at the one side of tip edge in the inserting...
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JP2003320434A |
To shorten the machining time in manufacturing a form rolling die for a drum-shaped worm M.A rotary tool 20 is applied to a disk-like workpiece 10 the outer peripheral face 11 of which bulges out in a cross-sectionally arc shape. The axi...
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JP2003305528A |
To provide a manufacturing method for a loosening preventing bolt capable of manufacturing the loosening preventing bolt provided as a double- thread at the shank of the same bolt by one rolling operation.The manufacturing method for the...
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JP3456995B2 |
A method for work-hardening a component to be loaded along a loading axis includes rolling in a notch extending approximately at right angles to the loading axis. The notch has a minimum radius of curvature to be determined in a cross-se...
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JP3455892B2 |
To manufacture a stepped rotary body having light wt., excellent concentricity without strain, uniform thickness and good rotating balance. In the manufacturing method of the stepped rotary body composed of a boss part and a cylindrical ...
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JP2003285135A |
To improve a product quality and extend the life of a tool by attempting proper processing condition by more accurately grasping the load when form-rolling a screw.More accurate load for form-rolling the screw can be obtained by measurin...
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JP2003285134A |
To provide a method for forming an inner face groove of a copper tube capable of manufacturing the inner face grooved pipe of which the crystal granular diameter is small and the mechanical property is homogeneous.After hot extrusion of ...
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JP2003278729A |
To provide a screw part with a cut portion for removing painting formed simultaneously with a screw thread by thread rolling, and a manufacturing method therefor.A shaft part 5 of a screw part raw material formed in series of a head part...
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JP2003275838A |
To provide a ring body forming device which is not affected by the backlash or temperature difference but form a work of high circularity, high accuracy and high quality by providing a movable member to move a forming roller in the press...
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JP2003269426A |
To provide a threaded fastener that is improved to be suitable for special purposes and materials by a creative lead form.A threaded fastener 10 includes leads 18 and 20 having bosses separated from one another by bases along the thread ...
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JP2003269432A |
To provide a manufacturing method that allows manufacturing of a screw body with a washer without an expensive device for roll threading.In this method of manufacturing a screw body with a washer, stepped screw bodies A and A' and main b...
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JP3449449B2 |
To unnecessitate a sheet material, to easily wind and to prevent it from being fallen-in or entangling at the start of winding by winding a special shape steel material on a winding core in a layer, practically winding it in a spiral lik...
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JP3448754B2 |
To attain the long service life of a tooth forming jig and to form the tooth without causing crack, in a roll-forming of the tooth. In the roll-forming method for a gear of roll-forming the tooth of the gear with a die for roll-forming o...
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