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JP3830250B2 |
To prevent chips from gathering and sticking to a periphery of a tool or a workpiece by arranging plural opening annular cover plates through which a foreign matter and the chips can pass in a deep rolling process. An annular opening 14 ...
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JPWO2005014194A1 |
To provide a method for manufacturing a left and right screw which satisfies both left and right screws with an effective diameter defined by a standard by an inexpensive rolling process. A screw material is rolled with respect to a die ...
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JP2006255765A |
To provide a method for manufacturing a screw parts with a through hole formed therein to pass a cable or other wires.The method for manufacturing the screw parts with the through hole in which the through hole from a tail end to a top e...
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JP2006247694A |
To provide an apparatus and a method for machining fine recessed portions, by which apparatus and method, fine recessed portions having a constant depth with respect to the inside peripheral surface of a cylinder bore can be formed, and ...
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JP3822572B2 |
To provide a cold forming tap which improves a tool life through reduction of working torque. In a profile of a projected part of a cold forming tap, an exact round part (margin) is arranged to stabilize cold forming. The exact round par...
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JP3822282B2 |
To provide an angle and its production method not requiring a large scale iron melting equipment, capable of cold forming or warm forming and welding well in forming an external wall, etc., of building material. The angle is produced so ...
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JP2006231385A |
To provide a forming rack which is a flat form-rolling die with which the metal flow of a plastic flow in a plastic working is reduced and which does not require additional machining such as the removal of round edge in a tooth trace in ...
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JP2006224161A |
To provide a method and a device for producing a cylindrical component with a bend, wherein the full length accuracy and edge face plane shape of the cylindrical component after working can be formed with high precision, and further, the...
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JP2006224159A |
To provide a flat die for rolling with which there is no need of providing a work with a flat part in a fixed width, thus the limitation of workpiece shape is reduced, and its bending by rolling is reduced, thus the straightening of bend...
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JP3816343B2 |
To provide a method for manufacturing a piston with which the number of processes is small without developing axial dislocation of a spherical part, and a working time can be shortened and also, a material loss and consumed tools can be ...
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JP2006218509A |
To provide a ring shape blank for roll-forming work, which ring shape blank can reduce a machining allowance in cutting work after performing the roll-forming work to a minimum, and further can form a ring shape product having a high str...
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JP2006218496A |
To provide a method for manufacturing a pulley at the load lower than the load during the forging by the conventional manufacturing method.The method for manufacturing the pulley includes a step of forming an intermediate-shaped pulley h...
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JP2006218492A |
To provide a form rolling die capable of forming a thread which has a base parallel to the axial direction of a screw and a sectional shape symmetric to the perpendicular bisector of the base while the lead angle is variable.The round-di...
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JP3812329B2 |
To provide a working method which can integrally form a boss part having arbitrary internal and external diameter dimensions at a disk-shaped work. While the disk-shaped work W is rotationally driven, the flat plate part of the work W is...
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JP3812201B2 |
To provide a production method for a form-rolled gear from a sheet metal having a characteristic in a pre-process for tooth generation. In the production method for a form-rolled gear from a sheet metal, by using a sheet like stock 1 of ...
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JP2006212701A |
To provide a thread rolling apparatus capable of preventing the occurrence of tip breakage of apex parts of threading portions of a roller form rolling die and a fixed form rolling die.The thread rolling apparatus is provided with the ro...
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JP3809265B2 |
To advantageously produce a metal product in which a cylinder part is integrally formed and a recessed part has a side face continuously extending in a peripheral direction on an outer peripheral face of a cylinder part with good quality...
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JP3807698B2 |
To permanently realize the smooth rolling condition of a work roller while preventing meaningless complicated constitution in the case of forming an inside diameter groove on an inner circumference of a cylindrical body as designed. A gr...
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JP3807521B2 |
To efficiently produce a double wall turbine composing member of complicated shape by rolling a preform including a sacrifice material to obtain a prescribed dimension, removing the sacrifice material after welding and assembling into a ...
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JP3807699B2 |
To form a groove in an inner circumferential surface of a cylindrical body in an optimum manner so that a smoothly rolling condition of a work roller can be permanently realized. A grooving device comprises a guide member 1 which is inse...
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JP2006198759A |
To provide a method for manufacturing a hourglass worm gear for improving mass-productivity as a whole by making a hourglass worm combined with a gear excellent in mass-productivity by using the gear it is as a worm wheel, in considerati...
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JP3804871B2 |
A method and apparatus for knurling a workpiece in which the knurl pattern has an oblique helix angle relative to the longitudinal axis of the cylindrical workpiece. Also disclosed is a method of molding a molded article with the knurled...
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JP2006192456A |
To suppress the deterioration of roundness of a shaft after forming and to prevent the deterioration of the shape of a reformed groove pattern by forging the groove pattern having a highly precise groove depth on the shaft.By reforming t...
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JP2006192492A |
To obtain a form rolling machine which can improve workability of a workpiece and a manufacturing method of a shaft.In the form rolling machine 10, when a taper ring 168 attached on the peripheral part of a main body 162 of a plain die 1...
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JP3802444B2 |
To obtain a configuration system of rolls, by which technical drawback in deforming work is evaded and tools are easily and rapidly exchanged by improving a cross rolling machine of a form described at the beginning. A tool 6 is formed a...
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JP2006187796A |
To provide a rolling die which is inexpensively manufactured by reducing the manufacturing cost of the base stock for dies and a manufacturing method of the rolling die.By constituting so that only working teeth for forming a coarse scre...
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JP2006189056A |
To provide a right-left screw capable of securing stable quality as a standardized product, and to provide a rolling dies for the same by realizing a function of the right-left screw as a perfect means for preventing looseness.The right-...
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JP2006187801A |
To provide a raw material for a worm and a method for manufacturing the worm which does not cause any underfill groove on the tip of the edge area of a screw tooth in forming the screw tooth on the raw material for the worm by equalizing...
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JP3797316B2 |
To provide a bolt capable of effectively preventing from being galled/seized by oblique assembling. In this bolt 1P, a notched shape bent at the border thereof with a tip thread crest 33 is provided at the start end part of the complete ...
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JP3798176B2 |
To reduce a man hour, to dispense with pointing and to reduce a drawing crack by arranging plural rolling stands which are arranged with upper/lower and vertical type rolling rolls alternately/continuously along the moving direction of a...
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JP3798299B2 |
To improve forming accuracy of a deformed steel bar by preventing the generation of burrs and uneven wall thickness at the time of blanking and to curtail manufacturing costs at the same time. A metallic plate bar stock 2 having a fixed ...
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JP3798496B2 |
To eliminate the need for electro-chemical machining required hitherto, shorten the time required to machine recessed parts for oil basins, and reduce the manufacturing cost of a cylinder block. With the machining method for the bore sur...
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JP2006181608A |
To provide a micro-processing machine which can reduce the processing cost of the cylindrical inner face of the hole of a workpiece.The invented micro-processing machine comprises a workpiece holding section, shaping tools 121 and 122, a...
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JP2006181638A |
To develop a manufacturing method which can obtain an outer ring 2a used for a radial ball bearing, while maintaining a practically sufficient accuracy at low cost.A highly precise workpiece 8 shown in (A) is formed into the outer ring 2...
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JP2006175450A |
To solve such problems that a conventional roller for processing fine recessed parts is expensive in the manufacturing cost and also it is necessary to change the whole in such a case that wear and breaking are generated in projecting pa...
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JP3792794B2 |
To improve the quality of a perforated hole by shortening the perforating time at concrete, aggregate or the like. At least one groove 30 is formed between both ends of a shank 12, and has a web 36 and a chip passage 32. The first surfac...
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JP3793896B2 |
To easily form a pulley having a shape in which an inner and outer hubs are formed in the same direction to a friction surface by a form-rolling method by which chips are not generated. This method includes a stage where a primary semipr...
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JP2006167743A |
To provide a tool for microforming work which is a tool for the microforming work with which a recessed part is formed on the surface of a part to be worked by pressing a projection part having hardness higher than the surface hardness o...
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JP2006167769A |
To provide a die for form rolling which is excellent in the productivity of columnar products (a helical gear or the like) having an inclined groove and excellent in the workability of itself.In a fixed die and a moving die provided with...
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JP2006159259A |
To provide a micro-forming device and a micro-forming method capable of shortening the machining time when machining irregularities on an inner surface of a cylindrical work, a method for machining an inner surface of an engine cylinder ...
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JP3787092B2 |
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JP2006150440A |
To provide a device and a method for working a minute recess by which a minute recess of high accuracy is efficiently formed, and further by which the reduction of manufacturing cost is achieved.The device has a composition provided with...
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JP3786173B2 |
To provide a rolling device and rolling method by which a base stock can be accurately rolled over the entire length or in a part of the stock. The rolling device is provided with a pair of rolls 1, 2 to the axes of rotation of which are...
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JP2006142355A |
To provide a producing method with which a buckling strength in a high strength light weight parts produced with hot-forging, such as a connecting rod, can be improved.In the method for producing the high strength light weight parts exce...
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JP2006142321A |
To provide an apparatus and a method for working very small recesses capable of regularly forming very small recesses on an inner circumferential surface with high accuracy when forming the very small recesses on the inner circumferentia...
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JP2006144918A |
To provide a rotary shaft which is capable of preventing wear by enhancing holding force of a lubricant in a spiral groove for feed, a feeding device and motor as well as method of manufacturing the rotary shaft.On the occasion of manufa...
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JP3782395B2 |
A rolling apparatus is capable of rolling a metal ring to an accurate circumferential length and preventing the metal ring from dropping off. The rolling apparatus includes a metal ring support assembly having tension rollers 2a, 2b for ...
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JP3780128B2 |
To prevent the deformation of a part of a center hole in a blank, and to suppress the reduction in wall thickness and degradation of the strength of the blank in a sheet metal member forming method in which the form-rolling is achieved b...
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JP3780432B2 |
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JP3779531B2 |
To provide a golf club head which is made of a metal and is manufactured by combining a plurality of divided cores with one another and in which at least one of the divided cores consists of a metal sheet with parts different in wall thi...
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