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Patent Searching and Data


Matches 801 - 850 out of 8,591

Document Document Title
JP5302878B2  
JP2013184200A
To provide a method of rolling-processing a hollow member, wherein processing accuracy on an outer peripheral surface of the hollow member is improved when the outer peripheral surface of a cylindrical hollow member is processed with dic...  
JP2013184172A
To provide a form rolling method capable of sufficiently improving accuracy of a tooth trace, and executing the form rolling of a helical gear without machining any unnecessary portion.A form rolling method includes: a first form rolling...  
JP2013173168A
To determine any chipping of a fillet roller with good accuracy with simple control.The maximum pressure change ΔPmaxj and the integrated pressure change value ΔPj are calculated by using the sequentially calculated pressure change ΔP...  
JP5280783B2  
JP5281020B2  
JP5280085B2  
JP2013169563A
To provide a ring rolling method by which the occurrence of an inner gap, i.e. a void in a product obtained by ring rolling can be suppressed.There is provided a rolling method comprising ring rolling in which, for an inner void occurrin...  
JP2013169583A
To enable high-accuracy form rolling in a form-rolling device without necessitating adjustment of distance between a center of a pair of dies and a center of an object workpiece.Form rolling is performed in a sate of sandwiching an objec...  
JP2013154355A
To increase the number of projections per one lead of a thread and further enhance a locking effect in a method of manufacturing a male screw provided with the projections which project in the normal direction of a flank of the thread at...  
JP2013152019A
To provide a steel tube with polyethylene powder lining having excellent form rolling workability in which any excessive diameter reduction occurs during the form rolling, and the fitting property to a tube end anti-corrosion joint is im...  
JP5256460B2  
JP5249367B2  
JP2013142471A
To provide a bolt that causes no fastening fault due to an inevitable hit mark during a bolt manufacturing process without re-rolling using a thread rolling machine.The bolt has a thread ridge with its thread ridge height h4 and its thre...  
JP5239933B2  
JP2013132645A
To provide a rolling method and apparatus that can form, by rolling, a gear having a small addendum radius and a small bottom radius and excelling in smoothness of tooth side faces.A gear with a large tooth depth is preliminarily formed ...  
JP5228303B2  
JP5228707B2  
JP5224423B2  
JP2013126794A
To provide a method for manufacturing a light alloy wheel for a vehicle in which cracks in a rim flange part can be suppressed without changing a shape of a wheel rim flange, and the light alloy wheel for the vehicle.The method for manuf...  
JP2013126667A
To provide a gear rolling method using circular dies, capable of producing teeth of an appropriate shape while causing no movement during processing.A work piece 3 having a cylindrical outer surface is supported on a support part 5 in su...  
JP2013116689A
To provide a bearing device for a wheel and a method of manufacturing the same, for improving durability, by securing support rigidity to a moment load, while reducing weight and the size.A pitch circle diameter PCDi of an inner side rol...  
JP5206275B2  
JP5210192B2  
JP5206260B2  
JP5210714B2  
JP5203556B2  
JP2013104071A
To provide a raw material for form rolling made of a copper alloy, for obtaining a form-rolled product having excellent strength and corrosion resistance.In the raw material for form rolling, a portion to be form-rolled is made of a Cu-Z...  
JP2013105057A
To provide a metal tube formed by providing a sure and stable spiral pattern shape on a metal tube with thin wall thickness by spinning and roughing the outer peripheral surface thereof, and to provide a manufacturing method thereof.The ...  
JP2013104122A
To provide an aluminum alloy wire for bolts, which is excellent in workability upon processing into a bolt and is capable of yielding a bolt with sufficient strength.The aluminum alloy wire for bolts comprises, by mass%, 0.60-1.5% Si, 0....  
JP2013099840A
To provide a high-accuracy and high-strength hollow threaded shaft with a low wall thickness, a method for manufacturing the same, and a small and light-weight ball screw unit.The method for manufacturing the threaded shaft includes step...  
JP2013094797A
To effectively reduce eccentricity between a center axis of a first cylindrical part and a center axis of a second cylindrical part without inviting increase in a manufacturing cost.A main metal fitting as a cylindrical member has a scre...  
JP2013092212A
To provide an inexpensive screw shaft that is superior in original mechanical performance as well as dimension accuracy, and achieves both the price and accuracy, and to provide a method for manufacturing the same.The screw shaft is manu...  
JP5195788B2  
JP2013081984A
To provide an apparatus for manufacturing an unequal thickness rim that can shorten a working time while surely preventing a hollow cylindrical material ring from moving along an axis direction during plastic working.The respective outer...  
JP5190885B2  
JP5188283B2  
JP5183116B2  
JP2013063457A
To provide a method for rolling a die-cast product which can improve workability in rolling without controlling the composition of a die-cast product.The method for rolling the die-cast product includes a step where rolling is applied to...  
JP5180669B2  
JP2013056366A
To provide a method of manufacturing an inner and outer ring for a bearing in which in a finishing process, the process is simplified securing finishing accuracy, and that can perform cost reduction.In the finishing process of a heat-tre...  
JP2013510001A  
JP2013052442A
To provide a method of manufacturing a wheel rim for a vehicle capable of improving productivity than before, light in weight and high in deformation resistance.The method of manufacturing the wheel rim for the vehicle includes a squeezi...  
JP2013049094A
To reduce manufacturing cost by improving yield by preventing the occurrence of a micro crack starting from a groove bottom of a fracture surface when an annular third intermediate material 21 is diametrically enlarged by form rolling to...  
JP2013049305A
To provide a wheel bearing device that can be made light in weight and small in size, reduces the number of processing man-hours, and can be made at lower cost through the simplification of assembly work.An L-shaped ring 17 is fit into t...  
JP2013507256A  
JP2013043183A
To provide a rolling die structure of a both-screw body with which both-screw bodies each having a right screw part and a left screw part on the same region can be highly accurately mass-produced using a cylindrical screw material withou...  
JP2013039614A
To provide a deformed cross-section structure that improves quality caused by a reduction of surface roughness, and prevents poor surface roughness to reduce the manufacturing cost, and to provide a method for manufacturing the same.The ...  
JP2013040635A
To provide a tapping screw made of a high hardness stainless steel, which can be screwed into a workpiece made of a low-carbon steel while forming a female screw.A screw raw material 1a integrated with a head portion including a drive po...  
JP2013035034A
To provide a method of manufacturing a spline shaft capable of obtaining superior working precision with a simple composition.In a method of roll-processing the spline shaft having crownings by using rolling racks 31 and 32 containing di...  

Matches 801 - 850 out of 8,591