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JP2023142725A |
To provide a method for manufacturing a bearing component capable of efficiently eliminating gaps existing around a non-metallic inclusion.In a method for manufacturing a bearing component, in order to reduce gaps between a non-metallic ...
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JP7339511B2 |
To provide a welding joint capable of reducing an influence on welding construction due to a construction error of an interval between metal plates, when an end portion of the other metal plate is butted to a surface of one metal plate.A...
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JP2023112312A |
To provide a method for working corrosion-resistant austenitic stainless steel which can impart sufficient compressive residual stress.A method for working corrosion-resistant austenitic stainless steel includes the steps of: preparing a...
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JP7321424B2 |
To provide a hypoid gear manufacturing method by which both of productivity and power transmission efficiency can be achieved.A manufacturing method for a hypoid gear having a truncated conical pinion gear and a ring gear comprises: a ge...
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JP2023089963A |
To provide a highly-strong duplex stainless steel excellent in corrosion resistance and processability; and to provide a manufacturing method thereof.A duplex stainless steel has a metallographic structure in which the area ratio of a fe...
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JP2023081506A |
To provide a shaft component having hardness equal to or more than hardness in the case of using Ni-containing steels without containing Ni, and excellent in machinability, and to provide a steel material for producing the same.A shaft c...
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JP7285228B2 |
To provide an autofrettage device and an autofrettage method capable of reducing an amount of pressurized liquid without enlarging the device.An autofrettage device K comprises a first fixing member 1 for fixing an upper end w1 of a cyli...
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JP2023070694A |
To provide a die steel that has both of a high hardness and a high shock value, and shows high resistance to thermal shock, and to provide a die.A die steel comprises, in mass%, 0.35%≤C≤0.55%, 0.05%≤Si≤0.40%, 1.50%≤Mn≤2.50%, ...
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JP2023070326A |
To provide a processing method of a machining object capable of imparting compressive residual stress to an inner wall surface of a hole regardless of a shape of the hole.A processing method of a machining object according to one aspect ...
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JP7269470B2 |
To provide a two-phase stainless steel which has high strength and also excellent fatigue resistance; and a method for manufacturing the same.The two-phase stainless steel has a metallic structure in which an area ratio of a ferrite phas...
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JP7259917B2 |
Provided are: a rectangular steel pipe that has small variation in hardness in a circumferential cross-section and excellent ductility and toughness on corner outer surfaces, and has a flat plate section; a method for manufacturing same;...
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JP2023054905A |
To provide a method for producing a metal member that is less susceptible to release of residual stress.A method for producing a metal member includes the steps of: performing a first treatment to atomize crystal grains of a metal member...
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JP7251605B1 |
A method for suppressing the growth of fatigue cracks in a bent portion of a metal plate, and a method for suppressing the growth of fatigue cracks in the bent portion. Provide auto parts. A method for suppressing fatigue crack propagati...
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JP7236850B2 |
To provide a hub unit with a steering function in which a part of the hub unit with the steering function can be accommodated in a limited space in a wheel, and can improve stiffness against large impact force from a road face or the lik...
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JP7205601B1 |
A method for suppressing the growth of fatigue cracks in a bent portion of a metal plate, and a method for suppressing the growth of fatigue cracks in the bent portion. Provide auto parts. A method for suppressing fatigue crack propagati...
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JP7204585B2 |
To appropriately control a residual stress inside an object to be subjected to surface treatment.A surface treatment condition deviation device 100 includes: a residual stress database 121 which stores residual stress data relating a com...
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JP7201096B2 |
A peening processing device 10 comprising: a supporting part 12 which is capable of moving relatively to a structure 1 in a welding direction of a welding bead 1c; peening devices 14, 16 provided at both sides in the widthwise direction ...
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JP2023002842A |
To provide a machine component for automobiles having a shot-peening layer in the induction hardened/tempered state of the machine component for automobiles made of a steel material for carburization hardening, and excellent in static to...
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JP2022182696A |
To provide an austenite-ferrite duplex stainless steel wire that has high strength and high elongation, is excellent in stress corrosion cracking resistance, and is usable as a tendon for prestressed concrete.MEANS FOR SOLVING THE PROBLE...
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JP7176637B2 |
A martensitic stainless steel pipe is provided that can reduce the increase in SCC susceptibility occurring at HAZs after welding. A martensitic stainless steel pipe has a chemical composition including, in mass %: 0.001 to 0.050 % C; 0....
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JP2022170664A |
To provide a stainless hot-rolled steel having excellent corrosion resistance and a method for producing the same.The present invention discloses a stainless hot-rolled steel having excellent corrosion resistance, which has a surface rou...
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JP7165522B2 |
Provided are the following: a compression coiled spring which exhibits high durability and high settling resistance, and which can prevent fretting fatigue; and a method for producing same. This compression coiled spring is obtained usin...
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JP7156514B2 |
To provide a seamless pipe having excellent pressure resistance performance and a method for manufacturing the same .The seamless pipe in which a thin-walled portion in a pipe circumferential direction is formed in a pipe axial direction...
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JP2022133587A |
To provide a shot-peening method capable of further extending life of a target object formed of a metal material.A shot-peening method includes a step S2 of performing first shot-peening of applying residual stress to a surface 2 of a ta...
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JP7129432B2 |
The invention relates to a method for the impact treatment of transition radii (8) of a crankshaft (4), in particular transition radii (8) between connecting rod bearing journals (5) and crank webs (7) and/or transition radii (8) between...
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JP7118903B2 |
To provide a laser peening apparatus capable of predicting quality of laser peening construction without measuring residual stress after the construction, and a laser peening method.A laser peening apparatus according to one aspect compr...
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JP7114518B2 |
To provide a laser processing device and a laser processing method which facilitates setting of installation condition of laser peening.A laser processing apparatus according to one aspect includes a laser irradiation device, an input pa...
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JP7111080B2 |
To provide a method for manufacturing a high strength hot-dip galvanized steel sheet, capable of improving plating appearance, especially, eliminating a ripple pattern occurring after plating.The method for manufacturing a high strength ...
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JP7107327B2 |
To provide a method capable of effectively suppressing the occurrence of delayed fracture that is a concern for a press-formed product composed of a high-strength steel sheet.A method for manufacturing a press-formed product includes the...
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JP7106637B2 |
The invention relates to a method for partial hardening of a steel sheet by cold deformation, where the partial hardening of a steel is done by a cold deformation with a multi-step rolling and annealing process and in order to have a ste...
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JP2022099521A |
To provide a surface hardened steel component excellent in both of surface fatigue strength and flexure fatigue strength and a production method thereof.After performing surface hardening processing and machine processing to a steel comp...
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JP2022096585A |
To provide a rolling component, a bearing, and manufacturing methods of these capable of suppressing peeling caused by a fiber flow, and both of inclusion origin type pealing and surface origin type peeling.A rolling component has a surf...
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JP7077906B2 |
The present disclosure provides a method for manufacturing a gear capable of processing a projection formed on a tooth tip by shot peening while reducing time for manufacturing the gear. A method for manufacturing a gear includes: a proc...
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JP2022076786A |
To provide a manufacturing method of a stainless bolt capable of improving creep resistance (reducing creep deformation) of the stainless bolt composed of austenitic stainless steel.A manufacturing method of a stainless bolt 10 includes ...
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JP7062395B2 |
To provide a compensation coil spring which is high in durability and high in settling resistance by forming a C-enrichment layer having a uniform thickness on a surface of a wire rod, and imparting a proper compression residual stress d...
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JP7051909B2 |
The invention relates to a device for the impact treatment of transition radii (8) of a crankshaft (4), in particular transition radii (8) between connecting rod bearing journals (5) and crank webs (7) and/or transition radii (8) between...
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JP7045660B2 |
To provide a metallic material having high strength and ductility by simple forced rolling working without depending on a complicated process.Provided is a metallic material obtained by treating stable austenitic steel or ferrite/austeni...
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JP2022045018A |
To provide an austenite stainless steel-made wire drawing material comprising flexure ductility and twisting characteristic and to provide a medical appliance using the material.There is provided an austenite stainless steel-made wire dr...
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JP7031479B2 |
To provide a new and improved manufacturing method of a steel plate, capable of manufacturing a steel plate which has almost the same plate thickness distribution, and having different hardness in a plate width direction.A manufacturing ...
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JP2022022832A |
To provide an alloy for an Fe-Co-based soft magnetic member, a soft magnetic member, an intermediate thereof and a producing method thereof, in which the amount of Co added to Fe is adjusted and other elements are added, and which has ex...
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JP6996700B2 |
To provide a processing method that can improve mechanical characteristics of metal material by introducing a fine structure to the metal material while preventing plastic deformation.A metal processing method includes the step of applyi...
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JP7014306B2 |
Provided are: a rectangular steel pipe that has small variation in hardness in a circumferential cross-section and excellent ductility and toughness on corner outer surfaces, and has a flat plate section; a method for manufacturing same;...
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JP7013492B2 |
The invention relates to a method for the impact treatment of transition radii (8) of a crankshaft (4, 4′), in particular transition radii (8) between connecting rod bearing journals (5, 5′) and crank webs (7, 7′) and/or transition...
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JP2022510381A |
In the present invention, nickel (Ni) 0.003 to 0.2% by weight, copper (Cu) 0.005 to 0.2% by weight, molybdenum (Mo) 0.01 to 0.5% by weight, titanium (Ti) 0.01 to 0.04% by weight, vanadium (V) 0.01 to Contains one or more selected from 0....
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JP7001213B1 |
The chemical composition of the base metal part includes the straight pipe part including the base metal part and the tempered welded part, and the chemical composition of the base metal part is C: 0.30 to 0.38%, Si: 0.05 to 0.40%, Mn: 0...
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JP2022007426A |
To provide a crankshaft manufacturing method that eliminates the need for a bend correction after high-frequency hardening.Conventionally, a fillet F is subjected to pressure deformation by increasing a force applied in a fillet roll pro...
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JP2022006975A |
To reduce influence from residual stress of a bar wire rod more readily.A plasticity processing method for continuously plasticity-processing a bar wire rod while pulling the bar wire rod in an elongation direction includes: a heating st...
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JP2021196667A |
To provide a CS-AM technology which is able to highly accurately simulate behavior of additive layer materials in CS-AM, and is able to optimize additive layer conditions.Provided is an analytical method for thermodynamics behavior of an...
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JP6984655B2 |
A surface treatment processing method includes: a shot processing step of performing shot processing of shooting shot media at a treatment target; a first inspection step of nondestructively inspecting at least one of a surface side stat...
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JP6987049B2 |
Disclosed is a steel whose composition includes specified wt % of: Ni, Mo, Co, Mo+Co+Si+Mn+Cu+W+V+Nb+Zr+Y+Ta+Cr+C+Al+B+Ti+N, Ni+Co+Mo, Al, Ti, N, Si, Mn, C, S, P, B, H, O, Cr, Cu, W, Zr, Ca, Mg, Nb, V, Ta, Y, the remainder being iron and...
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