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WO/2007/016919A1 |
Electromechanical knocking device and knocking method for working, smoothing and cold-hardening the surface of tools, machine parts and other parts by hammering an impact head onto the surface of the said parts by means of mounting them ...
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WO/2007/015859A2 |
A method is disclosed for rounding and/or flattening an annular part that is out of round and/or not flat due to non-uniform internal stresses. The part is first checked for out of round and/or out of flat conditions. Out of round parts ...
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WO/2007/013422A1 |
Processing including the grinding step of forming a friction surface of at least part of a rolling friction surface and sliding friction surface of motion guide apparatus making use of rolling elements by grinding using a whetstone and t...
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WO/2006/124616A2 |
Ultrasonic peening treatment is desirable where an application of a compressive stress is helpful to reduce the incidence of crack formation on highly stressed parts. Ultrasonic peening treatment can be performed in field applications wi...
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WO/2006/119944A1 |
Disclosed is a method for hardening fillets of a shaft (1), especially a crankshaft (1). According to said method, at least some of the fillets (3) are hardened at bearing points of the shaft (1) in a hardening process comprising inducti...
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WO/2006/119359A2 |
Method of producing products having at least a portion thereof with a nanocrystalline microstructure . The method entails machining a body to produce a polycrystalline chip having a nanocrystalline microstructure. The chips produced by t...
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WO/2006/111829A1 |
A method for obtaining enhanced fatigue strength in welded metal joints and -components comprising a weld toe (9) subjected to cold working such that a visible and/or measurable indentation at the weld toe (9) is produced. The cold worki...
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WO/2006/100149A1 |
The invention relates to a method for deep rolling the passes or radii on the transitions between journal and cheeks or flanges of crankshafts by means of a deep rolling device (1) of a deep rolling machine, said deep rolling device havi...
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WO/2006/086853A1 |
A method of producing coil plate on a hot strip mill is disclosed. The method includes coiling hot rolled coil plate strip at a temperature that is selected (a) to minimise precipitation of Cr/Mo carbides or (b) so that any Cr/Mo carbide...
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WO/2006/066717A1 |
The invention relates to a method for treating a component comprising a metallic or ceramic material with a crystalline, semi-crystalline or amorphous structure. According to said method, to case-harden the component, at least part of th...
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WO/2006/058518A1 |
The invention relates to a method for hardening the surfaces of components. In order to harden a surface (11) of a component (10), a relative movement or advancing movement between the component (10) and at least one sonotrode-type tool ...
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WO/2006/057836A2 |
Non-detachable welded joints with certain new or improved properties and the provision of such non-dtachable welded joints by ultrasonic impact treatmetn, is described involving conforming to select treatment parameters to control the fo...
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WO/2006/051285A1 |
A compressor wheel (7) is disclosed comprising an array of blades (20) extending from central hub (21) adapted from attachment to a rotatable shaft (8) and a backface (25). A region of the surface of the compressor wheel backface (25) is...
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WO/2006/045461A1 |
The invention relates to a mechanically-stressed actuator or bearing component, made from steel alloy, with an alloy component of less than 7 % and a carbon content of 0.5 - 2.2 %, with at least one mechanically-stressed functional area ...
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WO/2006/040030A1 |
The invention relates to a method for coating metal surfaces, whereby at least one layer of a composition is applied to the surface, said composition comprising hydrolyzates/condensates of at least one silane or a silicone resin binder a...
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WO/2006/017880A1 |
A method of manufacturing steel components particularly suited to components such as steering racks having net shape forged gear teeth. The method comprising heating at least a portion of a steel blank to a first temperature of at least ...
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WO/2005/123975A2 |
The invention relates to a steel with high mechanical strength and wear resistance. More specifically, the invention relates to a method of reducing the segregated veins of a steel having high mechanical strength, high wear resistance an...
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WO/2005/121387A1 |
A titanium alloy part according to the present invention has a compressive stress of approximately 270 MPa or more within a depth of about 100 &mgr m from a surface thereof. Since a large compressive stress exists in the area of the surf...
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WO2004099451A9 |
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...
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WO/2005/105362A1 |
The present invention relates to a method for joining two or more components and/or construction parts, at least one of which consists of a dispersion-strengthened alloy having the following composition (in % by weight): C up to 0,08 Si ...
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WO/2005/106263A1 |
The invention relates to a method for producing balls, especially for ball pivots, and to a ball element for two-part ball pivots. The balls according to the invention are produced by cold extrusion and subsequent grinding, using a micro...
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WO/2005/100618A2 |
The inventive average or small size mechanical steel part is produced by hot forging or cold stamping i.e. by plastic processing of a long ferrous semi-product which is obtainable by continuous casting and hot rolling in the austenitic p...
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WO/2005/100625A1 |
A steel product for a cargo oil tank which has a chemical composition containing C: 0.01 to 0.2 %, Si: 0.01 to 1 %, Mn: 0.05 to 2 %, P: 0.05 % or less, S: 0.01 % or less, Ni: 0.01 to 1 %, Cu: 0.05 to 2 %, W: 0.01 to 1 %, Cr: 0.1 % or les...
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WO/2005/090617A1 |
The invention relates to a method for increasing the bending strength and the endurance limit of crankshafts by locally restricted hammering in areas of high stress, such as grooves, the mouths of bores and cross-sectional transition zon...
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WO/2005/090618A1 |
The invention relates to a method for increasing the fatigue strength of crankshafts (1) for motor vehicle engines by hardening the crankshaft (1) at least in the hazardous regions (14) from the junctions of the journals (2 to 6, 9 to 12...
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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...
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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...
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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...
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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...
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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...
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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...
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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',...
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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...
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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...
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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,...
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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...
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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...
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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...
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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...
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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)...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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