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Patent Searching and Data


Matches 401 - 450 out of 3,466

Document Document Title
WO/2002/010463A1
The invention concerns a mechanical method for generating nanostructures to obtain on a metal workpiece surface a nanostructure layer with a specific thickness, characterised in that it comprises: a step which consists in displacing in a...  
WO/2002/010332A1
The invention relates to a method for shaping structural parts, in particular, those for use in aviation and space travel. The structural parts comprise a plate-shaped base body and ribs. Said ribs are longitudinally extended, are approx...  
WO/2002/000378A1
A method for densification of the surface layer of an optionally sintered powder metal component comprising the steps of: decarburizing the surface layer for softening the surface layer of the component; and densifying the surface layer ...  
WO/2001/092399A1
The invention relates to non-inflammable, translucent polycarbonate molding materials containing oligophosphate and special, fluorinated polyolefins. Said materials exhibit excellent flame protection properties and resistance to chemicals.  
WO/2001/090433A2
A surface treatment process for enhancing the intergranular corrosion and intergranular cracking resistance of components fabricated from austenitic Ni-Fe-Cr based alloys comprised of the application of surface cold work to a depth in th...  
WO/2001/088210A1
Martensitic stainless steel with high resistance to corrosion, consisting of the following ingredients: Mn from 0.1 % to 0.3 %, P $m(F) 0.02 %, S $m(F) 0.002 % Cr from 10 % to 13 %, C $m(F) 0.02 wt%, Si from 0.1 % to = 0.3 wt%, Ni from 5...  
WO/2001/083129A1
A method of refining the grain structure and improving the hardness and strength properties of a metal or metal alloy workpiece (24) is disclosed. The workpiece (24) is subjected to forces that corrugate (28, 30) and then straighten (26,...  
WO/2001/081026A3
The invention relates to metallurgy, more precisely to the thermomechanical treatment of billets having a large-grained laminar structure, in particular to titanium and alloys thereof, in order to obtain a defined microstructure for said...  
WO2001040525A3
A method of making high-strength steel structural members is disclosed by providing a flat-rolled blank of high strength steel having a ferrite-pearlite microstructure and high-strength mechanical properties and cold forming the blank by...  
WO/2001/075186A1
A hot rolled wire or steel bar for machine structural use which is capable of dispensing with annealing, characterized in that it has a chemical composition in mass %: C: 0.1 % to 0.5 %, Si: 0.01 to 0.5 %, Mn: 0.3 to 1.5 %, and balance: ...  
WO/2001/071208A1
A method for finishing the surface of a rolling contact component, such as a bearing rolling element, a bearing ring or a traction drive rolling element, comprises the steps of: carrying out a cutting operation on the surface, subsequent...  
WO/2001/066807A1
The invention relates to a method for reinforcing a tank wall, which method comprises the steps of: providing a tank with a steel tank wall defining an interior space; providing a reinforcing pressure in said interior space, which reinfo...  
WO2000047354A9
A metallic alloy composition is manufactured into products such as press formed or stamped products or rolled products such as sheet, strip, rod, wire or band by one or more cold working steps with intermediate or final flash annealing. ...  
WO/2001/064397A2
The present invention is a novel method of reducing tensile zones in the surface of a part comprising the steps of selecting a region of the part to be treated and programming a control unit (132) of a burnishing apparatus (100) to perfo...  
WO/2001/064398A2
The burnishing method and apparatus for implementing the method of the present invention utilizes a burnishing process to provide deep compression with a minimal amount of cold working and surface hardening. In particular, the method of ...  
WO/2001/058617A1
A compound indenter (18) for metal coldwork, and a method of employing such tooling. The compound indenter tool (18) is used to produce deformation in a workpiece structure (30), to provide a selected beneficial residual stress profile i...  
WO/2001/049887A1
The invention relates to iron metallurgy and more specifically to a modification of the physical properties of steel with the aid of deformation, including hot deformation. The invention can be used for plastic processing of blanks and a...  
WO/2001/040525A2
A method of making high-strength steel structural members is disclosed by providing a flat-rolled blank of high strength steel having a ferrite-pearlite microstructure and high-strength mechanical properties and cold forming the blank by...  
WO/2001/038693A1
A device (1) for expanding a pipe comprising a bi-conical sleeve (3) having a first section (5) and a second section (11), which sections (5, 11) are provided with at least two longitudinal guide channels (20), first wedges (25), wherein...  
WO/2001/036699A1
A composition and method for the manufacture of products of a precipitation hardenable martensitic stainless steel, the composition of which comprises at least 0.5 % by weight of Cr and at least 0.5 % by weight of Mo wherein the sum of C...  
WO/2001/036692A1
The invention concerns a method for ultrasonic shot blasting of large-dimensioned annular surfaces (5) on thin workpieces (1). Said method is characterised in that the surface to be shot blasted (5) performs at least N = five revolutions...  
WO/2001/031071A1
An innovative combination of powder metallurgy and hot working steps have allowed for optimization of the processing route for extruded powder metallurgical iron aluminide that is produced from both water atomization and gas atomized pow...  
WO/2001/016390A1
A law material for bearing parts which comprises a steel having been hardened by heat treatments and has a surface layer part to be subjected to shot peening treatment having tempered martensite structure, characterized in that the tempe...  
WO/2001/010578A1
A hot finish-rolling method for bar steel, which can improve a dimension accuracy and uniformize its structure, and which uses a 2-stand/3-roll finishing mill, wherein a final-finish-pass reduction of area is 10 to 20 % and a final-finis...  
WO/2000/075381A1
Spring steel having a hardness expressed by a Brinell ball indentation diameter of at least 2.7 mm is kept insulated at 150 to 350°C, and is subjected to warm stress peening with a stress given to the spring steel at the above temperature.  
WO2000047354B1
A metallic alloy composition is manufactured into products such as press formed or stamped products or rolled products such as sheet, strip, rod, wire or band by one or more cold working steps with intermediate or final flash annealing. ...  
WO/2000/062956A1
Axisymmetric deformations with a high deformation degree can be obtained by performing lateral extrusion on a partially heated metal workpiece (1000). The hardness obtained as a result of simultaneous cold and hot deformation makes it po...  
WO/2000/058043A1
Blank for a gun barrel, consisting of a steel bar, which bar, in one or more hot working steps, has been repeatedly wrung about its own longitudinal axis.  
WO/2000/056944A1
A first embodiment of the inventive maraging steel which has an essential composition: C: 0.01 % or less, Ni: 8 to 19 %, Co: 8 to 20 %, Mo: 2 to 9 %, Ti: 0.1 to 2 %, Al: 0.15 % or less, N: 0.003 % or less, O: 0.0015 % or less, balance: F...  
WO/2000/050781A1
A rolling element capable of increasing an anti-rolling fatigue while its hardness is maintained by improving the combination of a mechanical surface hardening of the rolling element to the surface rolling element and heat treatment; a r...  
WO/2000/049186A1
A surface treatment method for manufacturing springs of excellent fatigue resisting characteristics, comprising: projecting hard metal particles 500-900 $g(m) in particle diameter which are softer than a nitrided outermost layer of a spr...  
WO/2000/048760A1
A multi-stage forming tool (10) for densifying the outer perimeter of post-sintered powder metal preforms (36) includes a series of axially spaced die plates (12) having different size die openings (14) arranged from largest to smallest....  
WO/2000/047354A1
A metallic alloy composition is manufactured into products such as press formed or stamped products or rolled products such as sheet, strip, rod, wire or band by one or more cold working steps with intermediate or final flash annealing. ...  
WO2000026427A8
The invention relates to a steel with a high wear resistance, high hardness and good notched bar impact strength, useful for the manufacture of products, in the use of which at least some of said features are desirable, preferably for th...  
WO/2000/043556A1
The invention concerns a treatment method which consists in coating at least one surface of a brittle thin metal strip (1) with a coating film (3, 3') comprising at least a polymer material, to obtain on the strip an adhering coat with a...  
WO/2000/042227A1
A surface refining method for metal parts or the like, suitable for machining industries where surface refining (improving residual stress to compression, improving fatigue strength and work effect) is made by shot peening and for fields...  
WO/2000/031309A1
A method of recycling swarf into shot for use in shot blasting machines is disclosed. Swarf, especially swarf composed of engineering steel, is separated from large objects in a trommel [10] and is cleaned of contaminants. Oil and water ...  
WO/2000/026427A1
The invention relates to a steel with a high wear resistance, high hardness and good notched bar impact strength, useful for the manufacture of products, in the use of which at least some of said features are desirable, preferably for th...  
WO/2000/020170A1
The burnishing method and apparatus (100) for implementing the method of the present invention utilizes a single-point burnishing process to provide deep compression with a minimal amount of cold working and surface hardening. In particu...  
WO/2000/018973A1
This method refers to a method by which the physical and mechanical properties intrinsic to a fine-grain structure may be formed in metal billets using pressure treatment. The method is designed to treat rods, bars and other particularly...  
WO1999057328A3
The present invention relates to a process for heat forging martensitic stainless steels with very high carbon content, between 1.2 and 2.1 % by mass of said element and chromium in excess of 12 % by mass, in order to produce infibered s...  
WO/2000/006789A1
A high-strength, high-toughness rolled shape steel of 590 Mpa class used for building structural members and a method of producing the high-tension rolled shape steel. The shape steel has mechanical characteristics including a tensile st...  
WO1999047303A8
Tooling and a method of employing tooling (90, 130) to produce beneficial stress waves in a substrate (132) to provide high fatigue life structures. Stress waves (159, 152) are provided to work a substrate, causing dimples (170) in the w...  
WO1999047303A9
Tooling and a method of employing tooling (90, 130) to produce beneficial stress waves in a substrate (132) to provide high fatigue life structures. Stress waves (159, 152) are provided to work a substrate, causing dimples (170) in the w...  
WO/1999/057328A2
The present invention relates to a process for heat forging martensitic stainless steels with very high carbon content, between 1.2 and 2.1 % by mass of said element and chromium in excess of 12 % by mass, in order to produce infibered s...  
WO/1999/054513A1
An austenitic rounding fixture (2) is inserted into the horizontal joint of a turbine casing (6). The casing (6) is then assembled and stress relief cycle is carried out, resulting in rerounding of the casing and relief of residual stres...  
WO/1999/049096A1
An apparatus is disclosed for carrying out a method whereby parts (18) are treated in a fluidized bed created within an enclosure (10) that provides for movement of a generally upwardly through the enclosure, and where the parts (18) are...  
WO/1999/047303A1
Tooling and a method of employing tooling (90, 130) to produce beneficial stress waves in a substrate (132) to provide high fatigue life structures. Stress waves (159, 152) are provided to work a substrate, causing dimples (170) in the w...  
WO/1999/028070A1
A method of densifying a sintered powder metal article (2) by point contact (12).  
WO/1999/024630A1
A steel wire which has a perlite structure containing 0.8-1.0 mass% carbon and 0.8-1.5 mass% silicon and has such a hardness distribution that a surface layer ranging from the surface to a depth of 100 $g(m)m from the surface has an aver...  

Matches 401 - 450 out of 3,466