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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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, ...
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WO/2004/031428A1 |
The invention relates to a steel composition, comprising the following components : C: 0.12-0.45 wt. % Si; 0.10-1.00 wt. % Mn; 0.50-1.95 wt. % S; 0.005-0.060 wt. % Al; 0.004-0.050 wt. % Ti; 0.004-0.050 wt. % Cr; 0-0.60 wt. % Ni; 0-0.60 w...
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WO/2004/031418A2 |
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...
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WO/2004/030858A1 |
The invention relates to a method and a device for machining surfaces of workpieces. A first surface (12) of a workpiece (11) is machined by means of fixed rollers. Additionally, a second surface (13) of the workpiece (11), which is loca...
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WO/2004/029303A1 |
A method of improving fatigue strength of steel work, characterized in that a work portion with improved fatigue strength is stably obtainable by applying ultrasonic shock treatment such that residual tensile stress occurs in the work po...
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WO/2004/028739A1 |
The invention relates to a method and a device for creating internal compression stresses within a surface (9a) of a workpiece (9). The inventive method is based on the concept that the surface (9a) of a workpiece (9) is impinged upon by...
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WO/2004/028718A1 |
A method of working a metal in which the metal structure of metal body is rendered fine to thereby enhance the strength, ductility or homogeneity thereof; a metal body obtained by the metal working method; and a metal-containing ceramic ...
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WO/2004/022810A1 |
The invention concerns a ferritic chrome steel containing 0.03 to 0.1 % of carbon, 0.2 to 0.9 % of silicon, 0.3 to 1 % of manganese, 13 to 20 % of chromium, up to 0.5 % of nickel, 0.1 to 1.5 % of molybdenum, 0.1 to 0.5 % of copper, 0.03 ...
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WO/2004/018271A1 |
The invention relates to a spring element, in particular sprung blades for windscreen wipers, in particular on motor vehicles, having reduced vibration tendencies or greater damping, made from a ferritic chrome steel with 0.03 to 0.12% c...
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WO/2004/013359A1 |
Metallic workpieces of diverse shapes having work surfaces (13) which are deformed at the surface and adjacent sub-surface layers by surface impact from ultrasonic transducers (11) employing freely axially moving impacting elements (12) ...
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WO2003059569A9 |
The present invention relates to a process for forming the root of a turbine blade using the EDM method. EDM machining of the root is done in a manner that any re-cast layer left behind is less than 1 micron. After EDM machining the turb...
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WO/2004/007893A2 |
A method of increasing the collapse resistance of a tubular comprises locating a tool having at least one, and typically three, bearing members within a tubular. The bearing members are positioned in engagement with a wall of the tubular...
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WO2003008845B1 |
The invention relates to a sliding surface with areas which are harder in comparison with the base material. Said surface is easy to produce and has a long surface life. The harder areas in comparison with the base material are at least ...
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WO/2003/095855A1 |
At least a raceway portion (1c) of a blank (B) for a bearing raceway member is hardened by heat treatment, finished at a predetermined accuracy, and then roller-burnished and work-hardened. The blank (B) made of bearing steel is processe...
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WO/2003/082512A1 |
The method and apparatus for performing the method of forming a weld joint of the present invention utilizes welding apparatus (100) having welded tool (102) and a compression tool (106) for inducing a layer of residual compressive stres...
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WO/2003/080287A1 |
A passive-adaptive indentor (100) is provided for cold working a material that includes a material surface and a depth extending in a direction that is perpendicular to a direction of the material surface. The passive-adaptive indentor h...
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WO/2003/080877A1 |
The shot peening method and apparatus (Fig. 13) of the present invention utilizes control of the shot peening coverage to provide higher surface compression and comparable depth of compression to conventional 100% coverage peening but wi...
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WO/2003/076100A1 |
A method for manufacturing an ultra-high-tensile sheet method product of steel, at which the initial work piece used is constituted of a metal work piece of iron, alloyed with chromium, nickel and carbon in predetermined proportions. The...
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WO/2003/074742A1 |
The invention relates a method for manufacturing an ultra-high-tensile sheet metal product of steel, at which the initial work piece used is constituted of a metal work piece of iron, alloyed with chromium, nickel and carbon in predeterm...
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WO/2003/046242A1 |
A surface treatment process for enhancing the resistance to intergranular corrosion and intergranular cracking of components fabricated from austenitic Ni-Fe-Cr based alloys comprising the application of surface deformation to the compon...
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WO/2003/039804A1 |
The welding apparatus (100) and associated method are provided. The welding apparatus includes a welding tool (102) for forming a weld joint (28) along the surface of at least one workpiece (12). The welding apparatus also includes a com...
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WO/2003/035295A1 |
A method for cold forming a flattened, end-threaded rod (10) into a U-bolt (20) answers the need for high-strength steel rods that can be bent into flattened U-bolts by spring and suspension repair facilities or the like. By controlling ...
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WO/2003/033182A2 |
The invention relates to a device (1) for the production of flat metal (10). According to the invention, the device (1) comprises at least two rollers (2,3) extending in an essentially parallel manner and whose axes of rotation (4) are d...
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WO/2003/031660A1 |
Ferrous articles are austenitized, then converted to at least 60% bainite, and the balance substantially converted to martensite by quenching; the articles are then cold worked, preferably by both compression and tensile deformation to a...
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WO/2003/026815A1 |
The invention concerns a method and a device for producing microcrystalline materials, preferably sub-microcrystalline or nanocrystalline, by multiple plastic deformation of a sample of material, the external shape of the sample (1) corr...
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WO/2003/027337A1 |
An angular channel processing machine (10) including a die (12) which defines first and second channels (13,15) that intersect at an angle, drive means (11) to drive a workpiece (23) through the first channel (13) in a direction toward t...
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WO/2003/022469A1 |
The invention relates to a method for processing a metal slab or billet, in which the slab or billet is passed between a set of rotating rolls of a rolling mill stand to roll the slab. According to the invention, the rolls of the rolling...
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WO/2003/022482A1 |
A method of improving the performance and service life of a new bearing component (1), the component having at least one dynamic frictional surface the method includes subjecting the at least one dynamic frictional surface to a surface f...
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WO/2003/020456A1 |
The invention relates to a method for manufacturing an ultra-hig-tensile expanded metal of steel. The initial work piece used and constituted of a metal work piece of iron, which has been alloyed with chromium, nickel and carbon in prede...
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WO/2003/018221A2 |
The invention relates to a device for processing a metal slab, plate or strip, comprising a rolling mill stand with a roll nip between two driveable rolls, the rolling mill stand being designed to roll a metal slab, plate or strip betwee...
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WO2002042018A9 |
There is provided a new and improved apparatus (20) and method for rolling workpieces such as crankshafts (22). The apparatus has first (70) and second (72) rolling heads mounted at spaced positions along a common rolling arm (74) to rec...
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WO/2003/004708A1 |
A conventional steel C-channel used as a side rail in a truck frame is strengthened by forming, after heat treating, strengthening lips on the edges of the C-channel flanges while the C-channel is still hot from the final tempering step ...
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WO/2002/101097A1 |
The inventive method relates to reinforcing treatment of welded metalwork joints using a power ultrasound. Said method can be used for mechanical engineering, shipbuilding, bridge engineering and other branches of industry and constructi...
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WO2002070166B1 |
A stainless steel wire provided a deformed edge area (1) having an increased thickness in comparison with the core (4) and consequently an increased resistance to corrosion in comparison with a wire without such an edge area, especially ...
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WO/2002/096602A1 |
An improved method for media blasting a workpiece (20) is described. The media blasting method of the present invention includes the steps of positioning the work piece (20) in a part holder (130) for maintaining the workpiece in at leas...
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