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WO/1998/000569 |
Steel which has an excellent outer surface SCC resistance for pipelines without deteriorating fundamental requirements as the pipeline material. The surface smoothness of the steel is so controlled as to have a centerline average roughne...
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WO/1997/047418 |
The present invention concerns compacted and optionally presintered bodies, which are prepared from metal powders and which have densified surfaces, obtained by shot peening or rolling.
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WO/1997/045228 |
The track section (10) consists of two part-tracks (12, 14, 16) formed of various materials welded together using an intermediate element (18, 20), in particular a switch piece, such as a common crossing, with connecting rails manufactur...
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WO/1997/042351 |
A method of making a sintered article of powder metal having a carbon composition in the range of about 0.8 % to 2.0 % by weight, then shperoidizing the sintered article and then warm forming the sintered article at a temperature between...
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WO/1997/041266 |
A method of laser shock peening a metallic part (8) by firing a laser (2) on a laser shock peening surface (54) of the part which has been adhesively covered by tape (59) having an ablative medium, preferably, a self-adhering tape with a...
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WO/1997/041267 |
A method of laser shock peening a metallic part by firing a laser (2) on a laser shock peening surface (54) of the part which has been adhesively covered by tape (59) having an ablative medium (61), preferably a self-adhering tape with a...
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WO/1997/037788 |
A process for manufacturing a component (10) on which in-service stresses are imposed by in-service loading conditions. The process generally entails fabricating the component (10) such that residual stresses are induced in the component...
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WO/1997/024198 |
An endless belt work hardening apparatus including a pair of rotatable supporting rolls (10, 12), a work roll (14) disposed between the supporting rolls and a pair of tension rolls (16, 18) having disposed therebetween the work roll. The...
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WO/1997/002925 |
A gear shot peening method for hardening a gear without forming any projection on a tooth tip portion of the gear and a gear without any projection obtained through the method. The method comprises the steps of preliminarily shot peening...
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WO/1996/038597 |
A supermartensitic stainless steel having high mechanical strength and corrosion resistance showing the following percentage composition C 0.05; Cr 12-15; Ni 4-7; Mo 1.5-2; N 0.06-0.12; Mn 0.5-1; Cu < 0.3; P < 0.02; S 0.005; Al < 0.02; S...
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WO/1996/027684 |
Gas turbine engine static component with a metallic panel section, either linear or curved, that is susceptible to cracks initiated by features on the component has an elongated laser shock peened region having deep compressive residual ...
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WO/1996/022169 |
Machine and method for deep rolling fillets of split-pins of engine crankshafts. Each split-pin comprises neighboring and arcuately offset crank pins (24, 26) connected between counter weigths and has a centralized splitter fence (32) wh...
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WO/1996/017964 |
High strength steel is produced by a first rolling of a steel composition, reheated above 1100 �C, above the austenite recrystallization, a second rolling below the austenite recrystallization temperature, water cooling from above Ar3 ...
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WO/1996/017966 |
A high strength steel composition comprising ferrite and martensite/banite phases, the ferrite phase having primarily vanadium and mobium carbide or carbonitride precipitates, is prepared by a first rolling above the austenite recrystall...
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WO/1996/017965 |
A high strength steel composition comprising ferrite and martensite/bainite phases, the ferrite phase having primarily vanadium and niobium carbide or carbonitride precipitates, is prepared by a first rolling above the austenite recrysta...
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WO/1996/012589 |
A machining apparatus (20) for deep fillet rolling the undercut radii of a crankshaft (22) includes an adjustable support means or workholder (24) and a rolling tool assembly (26).
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WO/1996/011812 |
Stainless steel wire for reinforcing the upper portion (1) of tire casings (100), comprising in % by weight 0.02-0.2 of carbon, 6-10 % of nickel, 16-20 % chromium, the molybdenum content of the steel being 0-5 %, and the nickel, chromium...
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WO/1996/002675 |
High strength steel structural members and method of making are disclosed by providing a blank of high-strength steel material having a tensile strength of at least about 120,000 psi and a yield strength of at least about 90,000 psi and ...
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WO/1996/002677 |
A method of making high-strength steel parts is disclosed by providing a blank of high-strength steel having a ferrite-pearlite microstructure and high-strength mechanical properties and cold forming the blank by upsetting, forging, or e...
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WO/1996/002676 |
A method of making high-strength steel structural members is disclosed by providing a blank of high-strength steel having a ferrite-pearlite microstructure and high-strength mechanical properties and cold forming the blank by rolling, up...
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WO/1995/026423 |
A high manganese steel having superior hot workability is disclosed, in which small amounts of the alloying elements are added into a high manganese steel of Fe-Mn-Al-C system, so that the rupture strength of the grain boundaries of colu...
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WO/1995/025821 |
Laser shock peening/processing (LSP) has been used to strengthen fatigue-critical areas in metal parts. Notwithstanding the advantages, one negative effect of LSP occurs at the boundary of the LSP-treated area. In LSP, the laser pulse in...
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WO/1995/023876 |
A method of treatment of a shape memory alloy involves shot peening of the alloy sample to modify the structure of the surface layer of the sample without substantially affecting bulk characteristics of the material, particularly the sha...
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WO/1995/013102 |
The surface of a surgically-implantable prosthetic device is impacted with particles of the same material as the device to form the surface into a desired pattern of roughness.
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WO/1995/010635 |
A process for producing a hot forging steel of ferrite plus bainite type which comprises hot forging a steel material containing, on the weight basis, 0.10-0.35 % of carbon, 0.15-2.00 % of silicon, 0.40-2.00 % of manganese, 0.03-0.10 % o...
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WO/1995/002705 |
High strength steel parts and method of making are disclosed by providing a blank of high-strength steel material having a tensile strength of at least about 120,000 psi and a yield strength of at least about 90,000 psi and warm forming ...
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WO/1995/001459 |
Steel with ultrafine grains is produced by altering the transformation from one which normally proceeds with grain boundary nucleation followed by intragranular nucleation at deformation bands and other defects, to one which induces a su...
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WO/1994/023085 |
The invention provides a steel material for non-heat-treated steel parts having a high strength in a state formed by hot working. A high-strength non-heat-treated steel for hot forging, which contains carbon, silicon, manganese, chromium...
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WO/1994/021427 |
The invention relates to a process for hard-rolling a component (2) to be loaded along a load axis (1) in a notch (3) running approximately parallel to the load axis (1) and having a minimum radius of curvature (4) to be determined in a ...
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WO/1994/013842 |
A method of making high-strength steel parts is disclosed by providing a blank of high-strength steel having a ferrite-pearlite microstructure and high-strength mechanical properties and cold forming the blank by upsetting, forging, or e...
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WO/1994/004297 |
The method and apparatus for reclaiming substantially pure sand from a heat treating furnace (19); wherein a casting with sand core and/or sand mold, comprising sand bound by a combustible binder, attached thereto is introduced into the ...
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WO/1993/023576 |
Apparatus for effecting domain refinement of electrical steels comprises an assembly of an array of rotatable members (2) mounted within a supporting structure (3) and movable into direct contact with the surface of a strip or sheet of e...
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WO/1993/020247 |
Device comprising an ultrasonic oscillation transducer (1), an acoustic transmitter (2) made from a titanium alloy, disposed in space in a given manner and connected to the transducer (1) by means of a contact surface (3), a work chamber...
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WO/1993/018869 |
The invention concerns a process for reducing scale formation during hot forming of metal, in particular steel. The metal, which is formed in its heated state and under brief high pressure, the deformation being substantially plastic, is...
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WO/1993/018189 |
Sway bars (10) made of high strength steel having grains (15) with a preferred orientation, and methods of making such sway bars (10) from blanks of high strength steel typically having a yield strength of at least about 90,000 psi and a...
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WO/1993/015233 |
High strength steel parts and method of making are disclosed by providing a blank of high-strength steel material having a tensile strength of at least about 120,000 psi and a yield strength of at least about 90,000 psi and warm forming ...
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WO/1992/008817 |
A high-strength ultrafine steel wire with excellent workability in stranding, which comprises, by weight, 0.85 to 1.10 % of carbon, 0.10 to 0.70 % of silicon, 0.20 to 0.60 % of manganese, 0.10 to 0.60 % of chromium, 0.005 % or less of al...
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WO/1992/007966 |
High strength steel parts and method of making are disclosed by providing a blank of high-strength steel material having a tensile strength of at least about 120,000 psi and a yield strength of at least about 90,000 psi and warm forming ...
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WO/1992/005897 |
A gear wheel is formed from a pressed and sintered powder metal blank (2) by surface hardening the tooth, root and flank regions to establish densification in the range of 90 to 100 per cent to a depth of at least 380 microns.
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WO/1990/011849 |
A method of producing a so-called 'rollable metal sheet' having high rollability, essentially comprising the step of supplying continuously molten metal to a cooling member whose cooling surface consists of one or two surfaces and are mo...
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WO/1989/010806 |
A method for correction shape deviations in hard, hardened objects in which the objects are heated to a temperature which lies beneath the temperature at which the structure imparted to the objects during a preceding heating process (e.g...
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WO/1988/007588 |
The invention relates to a material (504), having adjacent regions of differing strength and ductility, that has been formed by rapidly deforming a suitable base metal (501) having a banded structure, such as illustratively a previously ...
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WO/1988/007587 |
The invention relates to apparatus and accompanying methods for use therein for forming a material (504), which has high strength and good workability, by rapidly deforming a suitable base metal (501) having a banded structure, such as i...
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WO/1987/004093 |
A method of preparing a metal base for a memory disk, wherein coining is performed by placing a metal blank material (6) between two dies having smooth working surfaces within a metal mold (3) which confines the spreading of the blank ma...
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WO/1987/000866 |
An ultra high carbon steel having a composition of carbon in an amount of from about 0.8 weight percent up to the maximum solubility limit of carbon in austenite; silicon in an amount of from about 3 to about 7 weight percent; an effecti...
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WO/1985/002566 |
A penetrator (60) is made in accordance with a method for increasing strength and/or hardness of a metal specimen. Compressive force is applied to the specimen slowly so that the yield strength of the specimen progressively increases and...
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WO/1984/002481 |
A method for increasing strength and/or hardness of a preshaped metal specimen (18) by cold working. Compressive force is applied to the specimen slowly so that the yield strength of the specimen progressively increases and the specimen ...
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WO/1984/001586 |
Armouring bars which are treated by hardening in a cooling liquid and thereafter by drawing temper owing to the core heat exhibit a mantel treated by hardening and drawing temper having an uneven thickness so that it is difficult to bend...
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WO/1983/002783 |
A method of continuously casting a molten ferrous alloy in a casting means (12) to obtain a solidified cast bar (20) at a hot-forming temperature, passing the cast bar (20) at a hot-forming temperature from the casting means (12) to a ho...
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JP2013006215 |
To enable to improve more the rise of a fatigue strength according to the hardness rise by plastic working.Disclosed is a treatment method for increasing the durability of steel structures, in which peening treatment is carried out on a ...
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