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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...
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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...
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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...
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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...
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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...
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WO/1999/028070A1 |
A method of densifying a sintered powder metal article (2) by point contact (12).
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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...
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WO/1999/016561A1 |
A pneumatic isostatic forging process for densification of near net shape workpieces is disclosed. A workpiece (22) is heated prior to the forging process, such as from a previous processing step (14). The workpieces is loaded into a pre...
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WO/1999/015303A1 |
The invention relates to a rolling device for generating pressured internal stress in a chamfer (5) running along the wall (2) of a material recess (3) in a component (4), comprising at least one carrier (7) which can move along said cha...
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WO/1999/014383A1 |
High strength steel structural members and a method of making same are disclosed by providing high-strength steel material having a specific chemical composition and preferably a tensile strength of at least about 120,000 psi and a yield...
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WO/1999/011836A1 |
A steel wire of pearlite texture containing 0.8-1.0 mass % of C and 0.8-1.5 mass % of Si, wherein an average hardness of a cross-sectionally outer portion thereof the depth of which is up to 100 $g(m)m measured from an outer surface ther...
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WO/1999/007497A1 |
A full enclosed die forging method conducted by using a forging materiel which comprises crystal grains of different phases and has a recrystallization temperature of T1 and a melting point of T2. The method comprises enclosing the mater...
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WO/1999/006735A1 |
A generally disc-shaped flywheel (10) which is an integral one-piece forged structure formed by forging of a carbon steel blank (24, 26) and consisting of an inner portion (14) having a friction surface (19) and an outer ring gear portio...
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WO/1999/002747A1 |
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 AR to...
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WO/1998/055659A1 |
The present invention relates to a process for the hot forging of steel with a very high carbon content, from 1.4 and 2.1 % by mass of said element, for the fabrication of cutting weapons. The process comprises four steps: 1) hot forging...
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WO/1998/027242A1 |
High bearing-strength steel parts useful for strengthening and downsizing parts which are to undergo rolling and sliding and therefore required to have high rolling strength and wear resistance, for example, gear, cam or bearing parts; a...
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WO/1998/026910A1 |
The invention relates to a method for increasing the solidity of surfaces of workpieces manufactured from hard brittle materials. The invention is characterized in that narrowly defined surface areas of the workpiece are brought into con...
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WO/1998/003686A1 |
A process for producing a shaped metallic article includes the steps of melting a metal alloy, reducing the temperature of the molten metal to the liquidus temperature, casting the molten metal at the liquidus temperature into a mould an...
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WO/1998/000569A1 |
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/1998/000626A1 |
A tubing (4) made of a formable steel grade which is subject to strain hardening without incurring any necking or ductile fracturing as a result of the expansion process is expanded by moving an expansion mandrel (5) having a non-metalli...
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WO/1997/047418A1 |
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/1997/045228A1 |
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/1997/042351A1 |
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/1997/041266A1 |
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/1997/041267A1 |
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/1997/037788A1 |
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/1997/024198A1 |
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/1997/002925A1 |
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/1996/038597A1 |
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/1996/027684A1 |
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/1996/022169A1 |
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/1996/017964A1 |
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/1996/017965A1 |
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/1996/017966A1 |
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/1996/012589A1 |
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/1996/011812A1 |
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/1996/002677A1 |
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/1996/002676A2 |
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/1996/002675A1 |
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/1995/026423A1 |
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/1995/025821A1 |
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/1995/023876A1 |
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/1995/013102A1 |
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/1995/010635A1 |
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/1995/002705A1 |
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/1995/001459A1 |
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/1994/023085A1 |
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/1994/021427A1 |
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/1994/013842A1 |
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/1994/004297A1 |
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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