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| Number | Title | Issue Date |
| 7401537 | Cutter insert gum modification method and apparatus A method and apparatus for treating a cutter ring adapted to be used in tunnel boring operations; forming an initial cutter ring and heat treating the cutter ring prior to a laser client process; applying an alloy to the surface of the cutter ring adjacent to cuttin... | 07/22/2008 |
| 7235144 | Method for the formation of a high-strength and wear-resistant composite layer A process for forming a high-strength, wear-resistant composite layer on the surface of an aluminum alloy substrate from an applied additive material. The additive material consists of an alloy or powder mixture which contains aluminum, silicon and at least 15% by w... | 06/26/2007 |
| 7077993 | Apparatus for softening a selected portion of a steel object by heating Differential hardening apparatus for softening a portion only of a metal workpiece such as a die block consisting of apparatus for presenting a workpiece to a heat source which impinges heat directly on the workpiece and control means for causing the heat to be dire... | 07/18/2006 |
| 6761851 | Apparatus and method for hardening metal by varying the engagement between irradiation and metal The present invention provides an apparatus for hardening a metal article, comprising a holding device, an energy beam generator pointed at the holding device for directing energy beams at the holding device, and a movement system supporting the holding device, wher... | 07/13/2004 |
| 6660632 | Method for depositing metal and metal oxide films and patterned films The invention is directed to a photoresist-free method for depositing films composed of metals, such as copper, or its oxides from metal complexes. More specifically, the method involves applying an amorphous film of a metal complex to a substrate. The me... | 12/09/2003 |
| 6564884 | Wear protection on a rock bit Using inserts which are welded in place allows the use of hardfacing in the immediate vicinity of the inserts. Areas of high wear, such as cutting structures and gage areas, can use a combination of ultra-hard inserts with hardfacing for protection agains... | 05/20/2003 |
| 6436553 | Continuous steel strip for twin presses and method for producing the same A continuous steel strip consisting especially of austenitic or martensitic steel, with at least one weld seam running crosswise to the longitudinal extension of the steel strip, for twin presses. The steel strip includes at least one first surface layer ... | 08/20/2002 |
| 6210547 | Enhanced solder surface and process for chemically and mechanically enhancing solder surface properties A process for altering surface properties of a mass of metal alloy solder comprising a first metal and a second metal. The process comprises exposing the mass to energized ions to preferentially sputter atoms of the first metal to form a surface layer rat... | 04/03/2001 |
| 6183882 | In plane deflection coupon for monitoring and controlling of laser shock peening A test coupon is formed from a metallic strip having opposite first and second sides that generally define a plane of the strip and the strip includes a laser shock peened patch of the strip that has first and second laser shock peened surfaces on the fir... | 02/06/2001 |
| 6159619 | Ripstop laser shock peening The present invention provides a metallic article with at least one laser shock peened surface on at least a portion of the article and a plurality of volumetrically spaced apart laser shock peened protrusions extending into the article from said laser sh... | 12/12/2000 |
| 6130400 | Ballistic momentum apparatus and method for monitoring and controlling laser shock peening A method for quality assurance of a laser process and, more particularly, a laser shock peening process that uses a ballistic momentum apparatus for maintaining quality control of a laser shock peening process that uses a laser includes a movable target m... | 10/10/2000 |
| 6127050 | Archival imaging medium and method therefor An archival medium, such as a compact disc, is made of a metal such as aluminum which is mechanically gained with particulate material under conditions that embed particulate material into the surface of the medium and visibly imageable by selective expos... | 10/03/2000 |
| 6094260 | Holographic interferometry for monitoring and controlling laser shock peening A method for quality assurance of a laser shock peening process uses interferometry to form a fringe image from first and second interferograms of unstressed and stressed laser shock peened patches respectively of a workpiece. The fringe image may then be... | 07/25/2000 |
| 6078022 | Laser peening hollow core gas turbine engine blades A hollow workpiece includes an outside surface through which a port opens to the hollow interior, and a laser peened area on the surface of the workpiece. The laser peened area is created on the surface while the hollow interior is at least partially fill... | 06/20/2000 |
| 6063509 | Reinforcing component of which the basic material is austenitic cast iron In a reinforcing component made from austenitic iron which is bonded intermetallically with an engine component made from an aluminium-base alloy, in particular a piston, the aim is to improve the strength of the bond irrespective of the graphite configur... | 05/16/2000 |
| 5951790 | Method of monitoring and controlling laser shock peening using an in plane deflection test coupon A method for quality assurance of a laser process and more particularly a laser shock peening process that uses a test coupon having a deflection formed by a laser firing. The test coupon is from a metallic strip having opposite first and second sides tha... | 09/14/1999 |
| 5861067 | Steel machine component having refined surface microstructure and process for forming the same A machine component which is formed from a high alloy steel has, along a surface where the component is subjected to cyclic loading, a glaze in which the steel has a refined microstructure that resists spalling. Whereas the microstructure of the core unde... | 01/19/1999 |
| 5762730 | Method for machining steel edges for skis and the like Method for machining steel edges for skis or the like, the steel edge being at least partly rapidly heated, then rapidly cooled again and consequently hardened with the aid of a plasma jet. In order to provide a method, which in economic manner can ensure... | 06/09/1998 |
| 5750205 | Surface treatment of metals by shock-compressed plasma A method for surface treating a metallic substrate to enhance its corrosion resistance. The method comprises the step of applying to the surface of the substrate a pulse treatment with a beam of dense high-temperature radiation generated by a coaxial plas... | 05/12/1998 |
| 5730811 | Cavity dumped laser shock peening process A laser shock peening apparatus includes a cavity dumping laser oscillator including in optical serial alignment a first mirror, a Pockels cell, a polarizer, a laser rod, and a second mirror defining a cavity having an optical length between the mirrors. ... | 03/24/1998 |
| 5674328 | Dry tape covered laser shock peening A method of laser shock peening a metallic part by firing a laser on a laser shock peening surface of the part which has been adhesively covered by tape having an ablative medium, preferably, a self adhering tape with an adhesive layer on one side of an a... | 10/07/1997 |
| 5674329 | Adhesive tape covered laser shock peening A method of laser shock peening a metallic part by firing a laser on a laser shock peening surface of the part which has been adhesively covered by tape having an ablative medium, preferably a self adhering tape with an adhesive layer on one side of an ab... | 10/07/1997 |
| 5620307 | Laser shock peened gas turbine engine blade tip Gas turbine engine blade with a metallic airfoil having a radially outer tip extending chordwise between a leading edge and a trailing edge and at least one laser shock peened surface extending radially along at least a portion of the tip and a region hav... | 04/15/1997 |
| 5591009 | Laser shock peened gas turbine engine fan blade edges Gas turbine engine fan blade with a metallic airfoil having a leading edge, a trailing edge, and a radially outer tip, and at least one laser shock peened surface located along the leading edge with a region having deep compressive residual stresses impar... | 01/07/1997 |
| 5584662 | Laser shock peening for gas turbine engine vane repair A wide gap braze repair, particularly for a gas turbine engine vane or a component in the hot section of the engine. The repair is characterized by a braze filled void in a damaged area of the component, a laser shock peened surface over the repaired area... | 12/17/1996 |
| 5578143 | Continuously cast slab of extremely low carbon steel with less surface defects in steel sheet-producing step; extremely low carbon sheet steel; and process for producing the same (Object) IF-based, continuously cast slab essentially freed from defects such as surface defects, difficult production and poor strength, etc. of the product that the IF-based sheet steels have; sheet steels and a process for producing the same are provid... | 11/26/1996 |
| 5496422 | Corrosion resistant stainless steel The corrosion resistance inherent in stainless steel is further improved by a cladding layer provided on the surface thereof. The cladding layer is formed of a coating material which is applied onto the surface of the stainless steel and, then, burnt to b... | 03/05/1996 |
| 5413641 | Laser nitriding an element made of titanium alloy by blowing nitrogen and inert gas A method of nitriding a piece made of titanium alloy, in which a laser beam is directed onto the piece to obtain a small amount of surface melting in the impact zone of the laser, nitrogen under high pressure is blown immediately behind the impact zone of... | 05/09/1995 |
| 5360495 | Process for hardening cutting edges with an oval shaped plasma beam An apparatus and process for hardening cutting edges having various widths. The apparatus includes a plasma torch for projecting a plasma beam through an outlet nozzle. The outlet nozzle has a length parallel to the cutting edge and a width perpendicular ... | 11/01/1994 |
| 5350463 | Magnetically graduated steel bar A magnetically graduated steel bar is provided with a magnetic scale that has a steel composition consisting, on a weight basis, of 0.02-0.10% C, 0.50-1.0% Mn, 0.50-1.0% Si, 17-20% Cr, 5-8% Ni, 0.05-0.20% C plus N, and a balance of Fe and incidental impur... | 09/27/1994 |
| 5338373 | Method of encoding and decoding a glassy alloy strip to be used as an identification marker A process for making a large number of magneto-mechanically resonant markers having distinct resonant characteristics is disclosed. The process comprises modifying at least one surface of a glassy metal alloy strip so as to cause the effective length of t... | 08/16/1994 |
| 5213636 | Method and apparatus of quench hardening of gear teeth surfaces A method for induction heating and quench hardening of helical gears provides a hardness pattern uniformly distributed to a controlled depth across and between the teeth surfaces by means of axial scanning of the workpiece and uniform quenching. Uniform q... | 05/25/1993 |
| 5180448 | Method of laser hardening corrugating rolls A method is disclosed for heat treating the flutes of a corrugating roll. A laser having a beam with a Gaussian power density distribution is provided for heating the flutes. The beam from the laser is reconfigured by an integrator lens to form a beam hav... | 01/19/1993 |
| 5171360 | Method for droplet stream manufacturing A method of manufacture of a net form product, including directing a stream of liquid from a nozzle onto a collector of the shape of the desired product, applying a disturbance to the stream, preferably an amplitude modulated disturbance, to produce a dro... | 12/15/1992 |
| 5160556 | Method of hardening corrugating rolls A method is disclosed for heat treating the flutes of a corrugating roll. A laser having a beam with a Gaussian power density distribution is provided for heating the flutes. The beam from the laser is reconfigured by an integrator mirror to form a beam h... | 11/03/1992 |
| 5143557 | Surface coating made from an aluminum-based alloy A substrate based on aluminum (Al) is given a surface coating of aluminum (Al) and silicon (Si) and of at least one element X from the group iron (Fe), nickel (Ni), cobalt (Co), manganese (Mn and chromium (Cr), the total proportion of elements X being 1 t... | 09/01/1992 |
| 5137792 | Sliding or frictional laminate having functional layer in the form of a solid dispersion A laminate material or workpiece with a backing layer and a functional layer, in particular a friction bearing layer, with the structure of a solid but fusible dispersion with a matrix and at least one component which is dispersed in the matrix and which ... | 08/11/1992 |
| 5137585 | Method of manufacturing a multimetallic article A multimetallic article of manufacture comprising a body (40) of a first metallic material with discrete regions (65) therein of a second metallic material is manufactured by the in situ alloying of a third material with the first material. The alloying i... | 08/11/1992 |
| 5131957 | Material properties Methods and apparatus for improving properties of a solid material in a target (11) by providing shock waves therein. There are directed to the surface of the material (11) pulses of coherent radiation (12) having average energy fluence of at least about ... | 07/21/1992 |
| 5114499 | Method of forming chilled layer The surface of a metal workpiece is remelted by a heat producing energy beam so as to form a molten metal layer thereon. While remelting the surface, a magnetic field is generated coaxially with the energy beam and is applied across the molten metal layer... | 05/19/1992 |
