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公开(公告)号：US5223692A
公开(公告)日：1993-06-29
申请号：US764256
申请日：1991-09-23
Applicant: Todd B. Lozier , James G. Kelley
Inventor： Todd B. Lozier , James G. Kelley
CPC classification number: B23K26/04 , B23K26/0732 , B23K26/384 , B23K26/388 , B23K26/389 , B23K2201/001 , B23P2700/06
Abstract: An improved method and apparatus for laser trepanning a passage through a workpiece, gas turbine engine component or the like includes the method steps of: providing a linearly polarized beam of laser energy; focusing the laser beam on a selected location on the component; moving one of the laser beam or the workpiece relative to one another along a first selected trepanning path and along a second selected trepanning path, which is substantially opposite in direction to the first selected path, to compensate for the linear polarization of the laser beam and to reduce the processing time. The steps of moving one of the laser beam or the workpiece along the first and second trepanning paths are repeated until a passage is cut to a desired depth into the surface of the component or the passage is cut entirely through the component. An apparatus for accomplishing the method of the present invention includes a laser system for generating a linearly polarized beam of laser energy and a manipulator arrangement for moving one of the laser system or the component relative to one another. The apparatus further includes a computer controller which is programmed to move either the laser system or the component along the first and second selected trepanning paths.
Abstract translation: 用于激光扫描通过工件，燃气涡轮发动机部件或类似物的通道的改进的方法和装置包括以下方法步骤：提供激光能量的线偏振光束; 将激光束聚焦在组件上的选定位置; 沿着第一选择的trepanning路径并且沿着与第一选定路径的方向基本相反的第二选择的trepanning路径移动激光束或工件之一，以补偿激光束的线性偏振，并且 以减少处理时间。 重复沿着第一和第二切割路径移动激光束或工件之一的步骤，直到将通道切割成部件表面的期望深度或者通过整个切割部件的截面。 用于实现本发明的方法的装置包括用于产生激光能量的线偏振光束的激光系统和用于相对于彼此移动激光系统或部件之一的操纵器装置。 该装置还包括计算机控制器，其被编程为沿着第一和第二选择的扫描路径移动激光系统或部件。
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公开(公告)号：US5148957A
公开(公告)日：1992-09-22
申请号：US780461
申请日：1991-10-22
Applicant: John G. Searle
Inventor： John G. Searle
CPC classification number: B29C65/06 , B23K20/1205 , B29C66/80 , B29C66/8322 , B23K2201/001 , B29C65/0636
Abstract: The present invention consists in the apparatus for use in welding a first component and a second component together by friction welding, comprising drive means operative to generate reciprocatory movement, a component holder operative to hold said first component, linking means operative to transmit reciprocatory movement from the drive means to the component holder so that in operation said first component performs reciprocatory heat-generating movement, pressure means operative to exert pressure on the component holder so that in operation said first component also performs welding movement, the linking means being such as to accommodate that welding movement during friction welding and the pressure means being such as to accommodate that heat-generating movement during friction welding. The pressure means preferably comprises ram means operative to apply force to a non-reciprocating head which is connected to the component holder through flexible connecting means enabling heat-generating movement of the holder to be accommodated. The connecting means may comprise one or more hinged links but preferably comprises one or more flexible elements. These flexible elements may comprise flexible rods or bars but preferably comprise flexible blades so orientated as to prevent movement of the component holder in a direction transverse to its heat-generating movement. Movement of the head in a direction parallel with the reciprocatory heat-generating movement of the component holder is preferably resisted by guide means which nevertheless permits the head with the component holder to perform welding movement. The guide means is preferably constituted by roller means preloaded to prevent backlash or rattling in use.
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公开(公告)号：US4768700A
公开(公告)日：1988-09-06
申请号：US86940
申请日：1987-08-17
Applicant: Yu-Lin Chen
Inventor： Yu-Lin Chen
CPC classification number: B23P15/04 , B23K20/021 , F01D5/183 , B23K20/24 , B23K2201/001 , Y10T29/49341 , Y10T29/49805
Abstract: A turbine blade spar wall surrounds a coolant plenum of the blade and is cast with an intermediate thickness exceeding its final or design thickness. The outer surface of the spar wall is machined to form a plurality of incomplete holes extending to bottoms located at the final thickness dimension of the spar wall. A pre-formed sheath of porous metal is fit closely around the spar wall outer surface with coolant pores in the sheath communicating with the incomplete holes. A high pressure inert gas is introduced into the coolant plenum concurrently with application of compressive forces to the sheath as both the sheath and the spar wall are raised to a high temperature whereby the sheath is diffusion bonded to the spar wall. The inert gas pressure in the coolant plenum reinforces the spar wall against the compressive forces. The inner surface of the spar wall is then chemically machined to an etch depth dimension which brings the spar wall to its design thickness and simultaneously removes the bottoms of the incomplete holes so that the incomplete holes become complete holes between the coolant plenum and the sheath of porous metal.
Abstract translation: 涡轮叶片翼梁壁围绕叶片的冷却剂室，并且以超过其最终或设计厚度的中间厚度铸造。 翼梁壁的外表面被机加工以形成延伸到位于翼梁壁的最终厚度尺寸的底部的多个不完整的孔。 多孔金属的预成型护套紧密地配合在翼梁壁外表面上，护套中的冷却剂孔与不完整的孔连通。 当护套和翼梁壁升高到高温时，将高压惰性气体同时施加到护套上施加压缩力，由此护套扩散结合到翼梁壁。 冷却剂室中的惰性气体压力抵抗压缩力加强了翼梁壁。 然后将翼梁壁的内表面化学加工成蚀刻深度尺寸，其将翼梁壁设计成其设计厚度，同时移除不完全孔的底部，使得不完全孔成为冷却剂室和护套之间的完整孔 多孔金属。
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14.发明授权
公开(公告)号：US4726104A
公开(公告)日：1988-02-23
申请号：US932961
申请日：1986-11-20
Applicant: Michael F. Foster , Thomas A. Ferguson
Inventor： Michael F. Foster , Thomas A. Ferguson
IPC: B23K31/00 , B23K9/00 , B23K35/22 , B23K37/06 , B23P6/00 , F01D5/00 , F01D5/20 , B23P15/02 , C04B35/02
CPC classification number: F01D5/20 , B23K35/224 , B23K37/06 , B23P6/007 , F01D5/005 , B23K2201/001 , Y10S29/048 , Y10T29/49318 , Y10T29/49746
Abstract: A mask particularly useful in the weld repair of air cooled gas turbine blades and vanes contains a mixture of ceramic particles in a liquid carrier. The mask is applied onto the surface of the blade or vane, and into the cooling holes. Following a sintering treatment, an inert, thermally stable, electrically nonconductive ceramic mask is produced, which is easily removed after welding.
Abstract translation: 在空气冷却的燃气轮机叶片和叶片的焊接修复中特别有用的掩模包含液体载体中的陶瓷颗粒的混合物。 将掩模施加到叶片或叶片的表面上并进入冷却孔。 在烧结处理之后，产生惰性的，热稳定的非导电陶瓷掩模，其在焊接后容易除去。
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公开(公告)号：US4296308A
公开(公告)日：1981-10-20
申请号：US72843
申请日：1979-09-06
Applicant: Syuhei Nakahama , Etsu Yamashita
Inventor： Syuhei Nakahama , Etsu Yamashita
CPC classification number: B23K9/028 , B23K9/032 , B23K2201/001
Abstract: A method and an apparatus for welding an impeller by using a TIG process are provided in which one of the blades to be welded to a side plate or shroud plate is disposed so as to form a V-shaped channel with the plate, the channel being oriented to face upwardly, and a torch head supported at the tip of a torch rod is placed above a weld line produced by the intersection of the blade and the plate so as to contact the inner surface of the channel keeping a proper distance between the tip of the tungsten electrode encased within the torch head and the weld line on which a filler wire of suitable length is disposed. The opposite end of the torch rod is mounted on a translating mechanism through an universal joint so the torch head moves along and above the weld line and electric current is supplied between the weld line on which the filler wire is disposed and the electrode while simultaneously supplying an inert gas through the nozzle during the movement of the nozzle, the nozzle keeping in contact with the inner surface of the channel due to gravity. The nozzle has a specific configuration so that the electrode distance is constant from the apex of the channel when the channel is curved or straight.
Abstract translation: 提供了一种通过使用TIG工艺来焊接叶轮的方法和装置，其中待焊接到侧板或护罩板的一个刀片被设置成与板形成V形通道，通道为 面向上的方向，并且将支撑在割炬杆的尖端处的炬头放置在由刀片和板的相交处产生的焊接线的上方，以便与通道的内表面接触，保持在尖端之间的适当距离 的钨电极被包裹在炬头内部和焊接线上，在其上设置了适当长度的填充线。 焊炬杆的另一端通过万向接头安装在平移机构上，使焊炬头沿着焊接线并沿上方移动，并且在设置填充焊丝的焊接线和电极之间提供电流，同时供电 在喷嘴移动期间通过喷嘴的惰性气体，喷嘴由于重力而与通道的内表面保持接触。 喷嘴具有特定的构造，使得当通道弯曲或直线时，电极距离从通道的顶点恒定。
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Patent Agency Ranking
公开(公告)号：US4121894A
公开(公告)日：1978-10-24
申请号：US745165
申请日：1976-11-26
Applicant: Salvatore J. Cretella , Matthew Bernardo , Ralph T. DeMusis
Inventor： Salvatore J. Cretella , Matthew Bernardo , Ralph T. DeMusis
CPC classification number: C22F1/10 , B23K10/027 , B23K31/02 , B23K35/0244 , B23K35/3046 , B23K35/3607 , B23P6/007 , F01D5/005 , F01D5/288 , B23K2201/001 , Y02T50/673 , Y10T29/49318 , Y10T29/49746
Abstract: A refurbished turbine vane or blade. Used turbine vanes and blades are cleaned, annealed and in some cases slotted adjacent their ends, after which any cooling passages are welded closed and all cracks welded over, on both leading and trailing edges. The trailing edge, for a vane or blade having a short chord, is built up by welding along its full length with an alloy wire, after which any slots that were cut adjacent the ends are closed, also by welding. Then the worn surfaces of the vane or blade are built-up by a plasma spray process, using a metal powder with added silica, to a thickness as great as 30 to 40 thousandths of an inch. The built-up vane or blade is then sintered and thereafter surface finished to conform to the original contour of the component when new. Any cooling holes are finally recut, and the vane or blade polished as required and inspected.
Abstract translation: 翻新的涡轮叶片或叶片。 使用的涡轮叶片和叶片被清洁，退火并且在某些情况下在其端部附近开槽，之后任何冷却通道被焊接封闭，并且所有裂纹焊接在前缘和后缘上。 用于具有短弦的叶片或叶片的后缘通过使用合金丝沿着其全长进行焊接来建立，之后通过焊接将所有切割的任何槽都封闭。 然后叶片或叶片的磨损表面通过等离子体喷涂工艺，使用添加有二氧化硅的金属粉末构成，厚度为30至40千分之一英寸。 然后将积木式叶片或叶片烧结，此后，当新的时候，表面加工完成以符合组件的原始轮廓。 任何冷却孔最后重新开始，叶片或叶片根据需要进行抛光和检查。
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公开(公告)号：US4098450A
公开(公告)日：1978-07-04
申请号：US778493
申请日：1977-03-17
Applicant: Donald L. Keller , David L. Resor
Inventor： Donald L. Keller , David L. Resor
IPC: B22D19/10 , B22D21/00 , B23K9/235 , B23K20/00 , B23K20/02 , B23K35/38 , B23P6/04 , C23G5/00 , B23K31/00
CPC classification number: B23P6/007 , B23K20/00 , B23K20/021 , B23K35/38 , B23K9/235 , C23G5/00 , B23K2201/001 , Y10T29/49746 , Y10T29/4975
Abstract: A narrow crevice in a Ni-base superalloy article is repaired by first removal of a complex oxide of at least one metal selected from Al and Ti, by treatment of the oxide in the crevice with gaseous active fluoride ions in a non-oxidizing atmosphere at a temperature at which the oxide will react with the fluoride ions under the conditions around the oxide. The crevice is then repaired in a subsequent step such as by filling with metal or pressure bonding.
Abstract translation: 通过在非氧化性气氛中处理气态活性氟离子的缝隙中的氧化物，首先除去选自Al和Ti中的至少一种金属的复合氧化物，来修复Ni基超合金制品中的窄缝隙 氧化物在氧化物周围的条件下与氟离子反应的温度。 然后在随后的步骤中修复缝隙，例如通过填充金属或压力粘合。
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公开(公告)号：US4028787A
公开(公告)日：1977-06-14
申请号：US613479
申请日：1975-09-15
Applicant: Salvatore J. Cretella , Matthew Bernardo , Ralph T. De Musis
Inventor： Salvatore J. Cretella , Matthew Bernardo , Ralph T. De Musis
CPC classification number: C22F1/10 , B23K10/027 , B23K31/02 , B23K35/0244 , B23K35/3046 , B23K35/3607 , B23P6/007 , F01D5/005 , F01D5/288 , B23K2201/001 , Y02T50/673 , Y10T29/49318 , Y10T29/49746
Abstract: A refurbished turbine vane and method of producing the same. Used turbine vanes are cleaned, annealed and slotted adjacent their ends, after which the cooling passages are welded closed and all cracks welded over, on both leading and trailing edges. The trailing edge, for a vane having a short chord, is built up by welding along its full length with an alloy wire, after which the slots that were cut adjacent the ends are closed, also by welding. Then the worn surfaces of the vane are built-up by a plasma spray process, using a metal powder with added silica, to a thickness as great as 30 to 40 thousandths of an inch. The built-up vane is then sintered and thereafter surface finished to conform to the original contour of the blade when new. The cooling holes are finally recut, and the vane polished as required and inspected.
Abstract translation: 翻新的涡轮叶片及其制造方法。 使用的涡轮叶片在其端部附近进行清洁，退火和开槽，之后冷却通道被焊接封闭，并且在前缘和后缘都焊接有所有裂纹。 用于具有短弦的叶片的后缘通过用合金线沿着其全长进行焊接而构成，之后通过焊接将相邻端部切割的槽封闭。 然后通过等离子体喷涂工艺，使用加入二氧化硅的金属粉末，将叶片的磨损表面构成厚度达30至40千分之一英寸的厚度。 然后将积层叶片烧结，此后，当新的时候，表面加工完成以符合叶片的原始轮廓。 冷却孔最后重新进入，叶片根据需要进行抛光和检查。
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公开(公告)号：US3699642A
公开(公告)日：1972-10-24
申请号：US3699642D
申请日：1971-04-08
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： LANGE FREDERICK F
CPC classification number: F01D5/288 , B23K20/021 , B23K2201/001
Abstract: A method for applying a cladding to the surface of a body by enclosing the body with a cladding of sheet metal or foil loosely adherent to the body surface in a mass of a non-reactive, nondensifying powder, and compressing the powder at a pressure of greater than about 500 psi and at elevated temperatures up to the melting point of the body or the cladding.
Abstract translation: 一种用于通过用金属片或箔片的包层将身体表面附着在非反应性，非致密化粉末的质量上而松散地附着于身体表面的方法，并将其包裹在身体的表面上， 压力大于约500psi，并且在升高的温度下直到主体或包层的熔点。
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公开(公告)号：US3571906A
公开(公告)日：1971-03-23
申请号：US3571906D
申请日：1968-09-26
Applicant: CATERPILLAR TRACTOR CO
Inventor： BARTH ROBERT C , CALTON MARION R , KING DANIEL L , OBERLE THEODORE L , ZIMMERMAN FRANKLIN E
CPC classification number: B23K20/12 , B23K2201/001 , Y10T29/4981
Abstract: A process for friction or inertia bonding difficult-to-grip parts wherein the parts are mounted within fixtures and a lowmelting-temperature alloy is poured into the fixtures so as to absorb hoop stresses and to prevent relative rotation between the workpiece and the fixture.
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