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JP09155647 |
To prevent a deformation by a recidual stress, by finding the length from the point of the recidual stress zero, to the front surface, and cutting the inner surface of a ring form member at the length more than the above found length. Th...
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JP09141361 |
To stably and inexpensively obtain a heat transfer tube having plural number of fins extending straightly in the axial direction of a arranged at intervals in the circmferential direction. A tube 1 to be machined is moves through the ins...
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JP09141364 |
To obtain a thin-walled seamless ring with a remalably easy method. A work composed by laminating plural numbers of plates of metal protect materials being thicker than the thickness of a metal blank on upper and lower faces of the thin ...
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JP09141362 |
To provide a device to easily produce a heat transfer tube in which plural fins linearly extending in the tube axial direction are formed on an outer surface at an interval in the circumferential direction under a short installation spac...
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JP09125150 |
To provide a producing method of a stainless steel sheet excellent in the surface glossness dissolving cloudy finishing, grayish and gray stripe pattern defect after cold-rolling by a simple process and in a short time, regardless of fer...
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JP09112202 |
To easily machine a cast screw rotor having a lightening hole for lightweight and a less inertial moment, with a high degree of accuracy. A cast screw rotor 1 having a lightening hole 9 which is formed in each of screw-like tooth parts 5...
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JP09108954 |
To enable an extra fine metal bar for chamfering an end to be machined so that the whole may be of an uniform diameter. An extra fine metal bar 1 of a specific length and a diameter is first somewhat ground to a required diameter by a gr...
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JP2618576 |
PURPOSE: To secure the structure of a retinal work of a plastic semi-finished article not to be deformed and damaged by affixing the smoothed side to a vacuum chuck device, and cutting the side of the plastic semi-finished product which ...
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JP09038832 |
To provide a manufacturing method of an electrocast mandrel in which workable resin is heaped up and is directly NC-machined to obtain a surface of a predetermined shape without using a copying process of a reverse die. After a height of...
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JP09029549 |
To provide a die of excellent flatness capable of preventing the deformation of a working groove in a manufacturing method for a penetration type screen die to be obtained by winding the sheet around a cylindrical roll, and achieving the...
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JP2600097 |
PURPOSE: To manufacture various kinds of parts, which have minute and complicated shapes, such as electronic parts, machine parts, precisely by means of a simplified process. CONSTITUTION: An optional position on a base plate 1 is charge...
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JP09027379 |
To improve the productivity of a spark plug by imparting satisfactory gap tolerances for spark gaps and aerial discharge gap to the spark plug having a semi-creep discharge part. A thread rolling process for rolling a mounting screw part...
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JP08324450 |
PURPOSE: To improve mass-productivity by combining a first member made of aluminum push out material for constituting one part of the bearing installation main body of a vehicular knucle and an arm for installing a car body support membe...
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JP2567563 |
PURPOSE: To improve durability of a torsion bar by way of improving coaxial precision of one end part, the other end part and a torsional part under a manufacturing method of the torsion bar of a power steering device. CONSTITUTION: A to...
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JP08252729 |
PURPOSE: To restrain deformation at cutting off by providing intermittent slit cut parts leaving uncut parts along prescribed cutting lines of a steel plate, and after drilling on prescribed positions by a NC drilling machine, cutting th...
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JP08218827 |
PURPOSE: To prevent breakage of a padded layer, or pitching of a cutting tool by adding a pre-stage cutting process for forming a flank work surface of a larger diameter than a guide surface of an applicable diameter to a cutting tool fo...
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JP08211679 |
PURPOSE: To make concentricity among a cylindrical body and end-part coupling members coupled to both ends extremely high and to prevent it from being largely deflected in the midst of rotation. CONSTITUTION: A work W obtained by press-f...
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JP08197393 |
PURPOSE: To prevent growth of a deep flaw, etc., on a machined surface by polishing an outer surface of an aluminium pipe by using an elastic polishing tool containing abrasive grains Young's modulus of which is lower than the aluminium ...
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JP08178808 |
PURPOSE: To obtain an impact test piece generating no 'burr' without requiring any additional step by making a notch in a surface after the surface and its opposing surface are subjected to facing. CONSTITUTION: A partially fabricated it...
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JP08174294 |
PURPOSE: To provide a slide guide device of a press with the high dynamic precision and unbalanced load resistance. CONSTITUTION: The up and down movement is guided by abutting with sliding a slide-give 15 installed on an uprights 4 side...
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JP08174340 |
PURPOSE: To provide a low-cost part for machine structure which is constituted to being excellent in a surface fatigue strength, such as a pitching resisting strength and a flaking resisting strength, and wear resistance. CONSTITUTION: A...
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JP08155701 |
PURPOSE: To provide a manufacturing method for a metal mirror that effectively uses accuracy of a polygon mirror blank obtained by press working and improves productivity. CONSTITUTION: This is a manufacturing method for a metal mirror t...
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JP08155747 |
PURPOSE: To improve dimensional accuracy of the whole length of a workpiece by cutting a shaft part to a required length from the end of an umbrella part after grinding the outer periphery of the shaft part with a centerless grinder. CON...
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JP08155748 |
PURPOSE: To sufficiently suppress the maximum surface roughness of the surface of aluminum tube to a small value, and to surely remove burrs which may cause the defective image or the like. CONSTITUTION: After the outer circumferential s...
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JP08150948 |
PURPOSE: To prevent breaking of an O ring from being caused in a torsion bar inserting part, and prevent the occurrence of external leakage even if deburring work is not performed by forming a small diameter inside surface part by perfor...
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JP08141993 |
PURPOSE: To provide a manufacture and a device of a porous plate by which a plate member cut to the specified length, and to which porous processing and surface treatment are applied is obtained from a band-like body formed into a coil s...
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JP08141849 |
PURPOSE: To provide a method of machining the movable sheave of a pulley device for a continuously variable transmission that can obtain high machining accuracy without the accumulation of workpiece fitting errors to a chuck. CONSTITUTIO...
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JP08132322 |
PURPOSE: To work a moulded body made of polytetrafluoroethylene or an ultra- high molecular weight polyethylene at favorable dimension precision. CONSTITUTION: A moulded body of polytetrafluoroethylene or an ultra-high molecular weight p...
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JP08118162 |
PURPOSE: To provide a structural member to be embedded in a frame member such as a concrete column or a concrete beam, at low cost. CONSTITUTION: Numerous holes 3a are punched in a hot-rolled structural steel plate 2 before cooling, and ...
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JP08117911 |
PURPOSE: To obtain shapes forming device, which enables reduction in flat working force and the cost of equipment, by providing a means for working groove bottom and also for flat working to pressurize both sides of a groove. CONSTITUTIO...
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JP08118161 |
PURPOSE: To enable the simultaneous machining of plural workpieces while saving space by fitting a pair of turrets to a horizontal rotating shaft, and providing this pair of turrets with pipe holding means at the specified pitch in the c...
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JP08090350 |
PURPOSE: To enable it to automate a series of operations ranging from the induction of a plate blank to positioning, edge preparation, cutting and parts delivery relatively easily, in time of manufacturing a plate part with a weld groove...
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JP08071856 |
PURPOSE: To provide a coil winding machine being compact, inexpensive and extremely efficient with shape return scarcely caused to a ring. CONSTITUTION: Metallic wire 4 delivered from a delivery roller 5 is cut by a cutter 16, and the me...
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JP08047740 |
PURPOSE: To provide a crowning surface forming method excellent in the working efficiency and capable of obtaining a smooth crowning surface in forming the crowning surface in mechanical parts, etc. CONSTITUTION: A surface 1a to be worke...
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JP08047821 |
PURPOSE: To extend a service life by making a through-hole in a plate before coated, when manufacturing the plate with a coated surface having the through- hole, so that a machining tool should be only designed so as to be adjusted to a ...
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JP08047822 |
PURPOSE: To provide a crowning face machining method by which smooth crowning face can be obtained with excellent machining efficiency, in machining for the crowning face of a machine component and the like. CONSTITUTION: A member 1 to b...
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JP08039359 |
PURPOSE: To shorten the working time by setting a plurality of cavity parts so as to be arranged on a common metal plate, performing a cluster NC machining such as milling, and cutting individual metal mold parts by wire cutting. CONSTIT...
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JP08025116 |
PURPOSE: To provide a machining method, by which a high quality through-hole or a high quality internal thread can be machined at low costs and compactification can be carried out, for a through-hole and an internal thread in a sheet met...
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JP08011021 |
PURPOSE: To manufacture a thin-walled parts with high yield of the material and reduction in the wear of a tool by preparing a disk-shaped slug from a cut round bar through the cold upsetting, making this slug to a cutting blank of the s...
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JP08003721 |
PURPOSE: To obtain a piston rod surface excellent in smoothness and furthermore satisfactory in corrosion resistance, wear resistance and flawing resistance only by subjecting the surface of a machined rod to simple pretreatment. CONSTIT...
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JP07299631 |
PURPOSE: To improve durability of a cutter, facilitate work operation, and reduce cost. CONSTITUTION: Roundness 3a having comparatively small curvature R2 is worked along a spiral shape in a corner part between a board 2 and a spiral par...
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JP07276147 |
PURPOSE: To efficiently manufacture a U-bolt having a seat plate, and correctly mount the seat plate by press-fitting the seat plate to the position of a stepped part through a tapered part. CONSTITUTION: A rod is cut to the prescribed l...
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JP07251327 |
PURPOSE: To provide a centering sleeve capable of being simply manufactured at a low cost in view of manufacturing technique and having an improved operating characteristic over a longer time in use even under an increasing bending load ...
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JP07241726 |
PURPOSE: To improve work processing efficiency and prevent generation of die marks by respectively detecting flaws of linear material in the circumferential direction and in the lengthwise direction, flaw positions, and the running speed...
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JP07241627 |
PURPOSE: To realize burr-free working of a forming work part and to contrive the reduction of all working time and the rationalization of working flow by carrying out punching, forming and deburring by a single machine. CONSTITUTION: A d...
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JP07227721 |
PURPOSE: To make troublesome cutting machining unnecessary and shorten a processing time drastically and improve productivity by correcting the projection degree of ribs into a size that corresponds to a bearing by push-pressing plural r...
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JP07223125 |
PURPOSE: To manufacture a disk drive swing arm without occurrence of a deposit and a material grain, and the generation of internal gas leak by making a base material having an outline form of the swing arm at an extrusion process. CONST...
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JP07204944 |
PURPOSE: To shorten machining time and reduce machining cost by forming different kinds of part shapes in one metal sheet material and making possible multiple part machining by one setup continuously and consistently. CONSTITUTION: The ...
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JP07185948 |
PURPOSE: To make a plastic deformation at a low cost in a limited space with no problem at all by plastically deforming a recess until the diameter of the recess corresponds to that of a half-shell bearing. CONSTITUTION: The raw material...
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JP07124807 |
PURPOSE: To increase the processing accuracy of a topping size between the center of a crankshaft bearing hole and the upper surface of a cylinder block without the use of a special positioning fixture, etc. CONSTITUTION: In the processi...
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