Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 351 - 400 out of 3,631

Document Document Title
WO/2005/085480A1
The invention relates to a method for producing a structural part, especially a die-formed part, from hypereutectoid steel, wherein the structural part is produced in one or more hot-forming steps by means of contoured tools starting fro...  
WO/2005/083269A2
Compressor wheel (16) and techniques for manufacturing such a wheel are provided. The wheel may include a hub (21) with a counterbore (36) internally treated to impart residual compressive stresses. for enhanced endurance to stress-induc...  
WO/2005/080623A1
[PROBLEMS] A metal working method capable of continuously forming various metal elements that are increased in strength or ductility by micronizing a metallographic structure to thereby improve mass-productivity and reduce costs, and a m...  
WO/2005/075873A1
A screw joint for oil well pipe obtained by improving a conventional screw joint for oil well pipe to secure a sufficient fatigue breaking strength; and a method of producing the same. It is arranged that the axial residual stress in the...  
WO/2005/074457A3
Coarse-grained titanium and ultrafine-grained (UFG) titanium billets were processed into titanium foil cold rolling and intermediate annealing. The foil produced from the UFG titanium billet exhibits a homogeneous nanostructure. By contr...  
WO/2005/074600A2
A method for cold working spot welded structures to improve fatigue life, and structures made by the method. Partially finished structures are provided assembled and joined by a spot weld nugget (50). Opposing indenters (46,48), or an in...  
WO/2005/070614A1
A process for stably forming an ultrafine crystal layer on the surface of a metal product at a low cost. A hole part (1) is bored in a workpiece (W) by means of a drill (D) and a large strain is imparted to the inner circumferential surf...  
WO/2005/068666A1
The inventive method discloses the local, adapted and controlled introduction of internal compressive stress in convex and concave regions, such as the root region of turbine blades, by means of at least two pressure generators (25, 25',...  
WO/2005/068674A1
Disclosed is an austenitic stainless steel with excellent stress corrosion cracking resistance which is characterized by consisting of, in weight%, C: 0.030% or less, Si: 0.1% or less, Mn: 2.0% or less, P: 0.03% or less, S: 0.002% or les...  
WO/2005/063442A1
The invention relates to a method for machining radii on prefabricated crankshafts (1) of automobile engines. According to said method, the peripheral layers of the crankshaft radii (10 to 13) are hardened to a depth of one millimeter at...  
WO/2005/059193A1
The invention relates to a cold-rolled fixing screw consisting of a low-alloy carbon steel with a high degree of deformation according to the ratios of external diameter to core diameter of > 1.2 and pitch to external diameter of > 0.23,...  
WO/2005/058546A1
The invention relates to a fixed roller head (1) comprising two housings (6, 7) for rolling the outer radii or passes (2, 3) of adjacent lifting journals (4) of split-pin crankshafts (5) with the aid of two fixed rollers (10, 11) which a...  
WO/2005/042931A1
A method of manufacturing a cam shaft capable of increasing the degree of freedom of the design of a camlobe by less causing cracking when the cam lobe is joined to the shaft of the camshaft, wherein the cam lobe (1) is joined to the sha...  
WO/2005/035801A1
Motors with high power densities and ignition pressures, for example diesel motors, require crankshafts with combined gear wheels, which can withstand high stresses, especially in their connection areas. As a consequence, forged steel cr...  
WO2004099451A3
A method for treating the surface of a machine element, such as the raceway and/or a rolling element of a rolling element bearing, comprising the steps of -subjecting the surface to a hard turning operation so as to obtain a specific rou...  
WO2005014869A3
A method for preparing metal for heating by infrared radiance to enable uniform and consistent heating. The surface of one or more metal parts (16,17), such as aluminum or aluminum alloy parts, is treated to alter the surface finish to a...  
WO2004059016A3
Disclosed is a screw (1) comprising a head (2), a shaft (4) that is provided with a thread (5), and an interior engaging member (3). Said screw (1) is produced in a special method by cold deforming an initial material, ultra high-strengt...  
WO2004081250A3
An object of the invention is to provide a steel having good fatigue life characteristics and acoustic characteristics by eliminating the harmful effects of oxide based inclusions. The object is attained by the following steel. A steel h...  
WO/2005/014869A2
A method for preparing metal for heating by infrared radiance to enable uniform and consistent heating. The surface of one or more metal parts (16,17), such as aluminum or aluminum alloy parts, is treated to alter the surface finish to a...  
WO/2005/007314A1
A tubular sleeve (S) has an inner end with a flange (94) projecting radially outwardly. The flange is sized to be received between and clamped by first and second clamp surfaces (86) (90) provided on first and second tubular members (20)...  
WO/2004/106573A1
A method for hot forming, wherein in the cooling step of hot pressing, a formed product is first cooled at a rate of a critical cooling rate or higher down to the Ms point thereof and then cooled at a rate of 25 to 150°C/s from the Ms p...  
WO/2004/101846A1
A cutting tool and a method for the production of cutting tools for metalworking characterized in that the holder body of the tool first is submitted to a surface hardening that results in the formation of compressive stresses in the sur...  
WO/2004/099451A2
A method for treating the surface of a machine element, such as the raceway and/or a rolling element of a rolling element bearing, comprising the steps of -subjecting the surface to a hard turning operation so as to obtain a specific rou...  
WO2004058482A3
The invention relates to a method for increasing a fatigue strength of a metallic component (1), particularly a component (1) of a fuel injection system of a motor vehicle, said component being provided with at least one cavity (4). Duri...  
WO/2004/085685A1
A process for producing a high-strength spring capable of having a compressive residual stress greater than in the prior art. In particular, the process comprises subjecting to shotpeening a spring having undergone final heating, such as...  
WO/2004/080625A1
A method for processing a metal body is disclosed wherein the metal body is turned to have a finer structure, so that the metal body has a heightened strength or ductility. An apparatus for processing a metal body is also disclosed. In t...  
WO/2004/081250A2
An object of the invention is to provide a steel having good fatigue life characteristics and acoustic characteristics by eliminating the harmful effects of oxide based inclusions. The object is attained by the following steel. A steel h...  
WO/2004/059015A1
A method of refining a metal surface capable of producing crystal grains with grain sizes of less than 1 μm on the surface part of a metal product and the metal product treated by the method. Shot materials or impact objects are project...  
WO/2004/059016A2
Disclosed is a screw (1) comprising a head (2), a shaft (4) that is provided with a thread (5), and an interior engaging member (3). Said screw (1) is produced in a special method by cold deforming an initial material, ultra high-strengt...  
WO/2004/058482A2
The invention relates to a method for increasing a fatigue strength of a metallic component (1), particularly a component (1) of a fuel injection system of a motor vehicle, said component being provided with at least one cavity (4). Duri...  
WO/2004/051075A1
The invention relates to a method for producing a high pressure fuel accumulator (1) for a fuel injection system of an internal combustion engine, comprising a tubular base body (2), at least one connection for the fuel supply (3) and at...  
WO/2004/046397A1
A method of increasing the strength of a cold worked part by an ultrasonic shock treatment, characterized by comprising the step of applying the ultrasonic shock treatment to the tensile side surface of the cold bending worked part of a ...  
WO/2004/046398A1
An ultrasonic impact processing machine for obtaining a surface layer having a nanocrystal structure and having various characteristics, or for obtaining such surface layer efficiently, and for obtaining high fatigue characteristics; and...  
WO/2004/046392A1
A delayed fracture prevention method for a steel structure formed of steel materials having a tensile strength of 600 N/mm2 or higher and/or welded joints for the steel materials, wherein an ultrasonic shock treatment hammering by an ult...  
WO/2004/046396A1
A method of increasing the fatigue strength of the cut face of a metal by an ultrasonic shock treatment, characterized by comprising the steps of applying the ultrasonic shock treatment to the cut face to smoothen small notches present i...  
WO/2004/046394A1
A method of manufacturing a metal product having a nano-crystallized surface layer part, characterized by comprising the steps of applying an ultrasonic shock treatment hammering with one or a plurality of ultrasonic vibrating terminals ...  
WO/2004/046400A1
Strain-hardened steel alloys having a high tensile strength are prepared by cold working of alloys whose microstructure includes grains in which laths of martensite alternate with thin films of stabilized austenite. Due to the high dislo...  
WO/2004/046399A1
An ultrasonic impact processing machine for obtaining a surface layer having a nanocrystal structure and having various characteristics, or for obtaining such surface layer efficiently, and for obtaining high fatigue characteristics; and...  
WO/2004/046393A1
A long life rotating body with an excellent fatigue strength and a method of manufacturing the rotating body, the rotating body formed by welding the end parts of stacked two sheets of sheet metal to each other comprising lap fillet weld...  
WO/2004/046395A1
A method of setting ultrasonic shock treatment conditions for a metal material for determining treatment conditions, particularly, a treatment temperature range according to the degree of a target reformation of the treated metal materia...  
WO/2004/044249A3
Article of manufacture fabricated by plastic deformation of an intermetallic compound comprising R and M, such as an RM intermetallic compound and a higher order compound thereof, having a CsCl-type ordered crystal structure wherein R is...  
WO/2004/044249A2
Article of manufacture fabricated by plastic deformation of an intermetallic compound comprising R and M, such as an RM intermetallic compound and a higher order compound thereof, having a CsCl-type ordered crystal structure wherein R is...  
WO/2004/042093A1
An iron structure product and metal structure product excelling in resistance to cracking thereof as encountered when loaded with a stress and placed in an environment causing contact with a liquid metal, namely, resistance to liquid met...  
WO2004031418A3
The aim of the invention is to create a method which allows products to be manufactured in a simple and inexpensive manner by means of thermal deformation while preventing the risk of excessive tension being generated even during complex...  
WO/2004/039517A1
A method of the surface treatment of a mold for casting, which comprises subjecting a cavity surface of a fixed mold (12) made by the use of a SCM420 material to first shot peening, a sulfurizing-nitriding treatment and second shot peeni...  
WO/2004/040022A1
A metal structure product excelling in resistance to cracking as experienced by metal structure products under stress loading disposed in corrosive environment, namely, environmental cracking; and a method of enhancing the environmental ...  
WO/2004/040023A1
A method of increasing the toughness of heat-affected part of multilayer welded joint, lap fillet welded joint or one or more pass high heat input welded joint with respect to steel products. In particular, a method of increasing the tou...  
WO/2004/040031A1
A high Cr ferritic heat-resistant steel (having a Cr content of 15 mass % or less), which has a deformation texture comprising elongated ferrite grains or a fine crystal grain structure having a ferrite grain diameter of 3 μm or less in...  
WO/2004/033126A1
The aim of the invention is to produce a metallic molded part, particularly a vehicle body part, from a semifinished product made of an unhardened thermally moldable steel sheet. Said aim is achieved by first shaping the semifinished pro...  
WO/2004/033144A1
A boxing joint with an excellent fatigue strength used for welded structures such as buildings, ships, bridges, construction machinery, and marine structures to weld the end parts of two steel plates vertically combined with each other, ...  

Matches 351 - 400 out of 3,631