公开(公告)号：US20180250762A1

公开(公告)日：2018-09-06

申请号：US15450726

申请日：2017-03-06

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Cui YAN ,  Srikanth Chandrudu KOTTILINGAM ,  Brian Lee TOLLISON ,  Cem Murat EMINOGLU

IPC: B23K1/20 ,  B24C1/00 ,  B08B3/02 ,  B08B7/00

CPC classification number: B23K1/206 ,  B08B3/02 ,  B08B3/024 ,  B08B7/0042 ,  B08B7/0071 ,  B23K2101/001 ,  B23K2103/05 ,  B23K2103/08 ,  B23K2201/001 ,  B23K2203/05 ,  B23K2203/08 ,  B24C1/00 ,  F01D5/005

Abstract: A process for treating a component comprising the steps of capturing a digital image of a gap in a portion of a component. The gap is characterized as having gap walls, a length and at any point along its length as having the features of an inner width between the gap walls, an outer width between the gap walls, and a depth. One or more of such features is measured at one or more points along all or a portion of the length of the gap. The measurements are used to determine a water jet cleaning path, a cleaning edge relative to a gap wall and path angle. A water jet is passed along all or a portion of the selected path to remove debris and/or a portion of a gap wall. The treated gap is then processed further to join the gap edges using a suitable sealing method.

公开(公告)号：US06118098A

公开(公告)日：2000-09-12

申请号：US136848

申请日：1998-08-19

Applicant: Dennis Ray Amos ,  Kent Wixon Beedon

Inventor： Dennis Ray Amos ,  Kent Wixon Beedon

IPC: B23K9/00 ,  B23K9/04 ,  B23K9/167 ,  B23K9/173 ,  B23K9/18 ,  B23K10/02 ,  B23P6/00 ,  B65B1/06 ,  F01D5/00

CPC classification number: B23P6/007 ,  B23K9/04 ,  B65B1/06 ,  F01D5/005 ,  B23K2201/001

Abstract: This invention relates to an improved method for repairing damaged or worn surfaces of turbine components or upgrading older designs to new, improved designs. This improved method applies to both high pressure and low pressure turbine components applications. This method includes depositing a plurality of individual spaced apart weld volumes onto a prepared surface of a turbine rotor. These individual spaced apart weld volumes form individual fingers without the need to machine the individual fingers from a single rectangular weld volume. Multiple weld volumes are formed concurrently with a space maintain between each weld volume using multiple torches without the problems normally associated with closely spaced welding arcs. Each individual spaced apart weld volume is formed by a plurality of layers of weld metal, with each layer being formed from a single oscillating weld bead to form a predetermined width. The filler wire may be heated by applying a current through the filler wire before it is fed into the weld pool. Welding parameters are also changed to increase the amount of weld deposition without adversely affecting the mechanical weld properties. The invention provides for reduced cycle time for repair work by using multiple torches simultaneously without causing arc instability. The invention also reduces cycle time, by eliminating the need of machining individual fingers on control stages from a single weld volume, by changing the weld buildup of multiple projections, slightly larger than the fingers which hold the blades.

Abstract translation: 本发明涉及一种用于修复涡轮机部件的损坏或磨损表面或将旧设计升级为新的改进设计的改进方法。 这种改进的方法适用于高压和低压涡轮机部件应用。 该方法包括在涡轮转子的制备表面上沉积多个单独的间隔开的焊接体积。 这些单独的间隔开的焊接体积形成单独的手指，而不需要将单个手指从单个矩形焊接体积加工。 多个焊缝体积与使用多个焊炬的每个焊接体积之间的空间同时形成，而没有通常与紧密间隔的焊接弧相关联的问题。 每个单独的间隔开的焊接体积由多个焊接金属层形成，每个层由单个振荡焊道形成以形成预定宽度。 填充线可以在被送入焊池之前通过将填充线施加电流来加热。 也改变焊接参数以增加焊接沉积的量，而不会不利地影响机械焊接性能。 本发明通过同时使用多个割炬而减少了修理工作的周期时间，而不会导致电弧不稳定。 本发明还通过改变比保持叶片的手指稍大的多个突起的焊缝积聚来消除从单个焊接体积加工单独手指在控制台上的需要，从而缩短了循环时间。

公开(公告)号：US6115917A

公开(公告)日：2000-09-12

申请号：US200724

申请日：1998-11-27

Applicant: John Francis Nolan ,  Thomas Eugene Gustafson ,  David John Grubish

Inventor： John Francis Nolan ,  Thomas Eugene Gustafson ,  David John Grubish

IPC: B23K9/00 ,  B23K9/02 ,  B23K9/028 ,  B23K9/16 ,  B23K9/167 ,  B23P6/00 ,  C21D1/30 ,  C21D9/38 ,  F01D5/00 ,  F01D5/06

CPC classification number: B23P6/005 ,  B23K9/0026 ,  B23K9/0213 ,  B23K9/028 ,  B23K9/16 ,  B23K9/167 ,  C21D9/38 ,  F01D5/005 ,  F01D5/063 ,  B23K2201/001 ,  C21D1/30 ,  F05D2230/80 ,  F05D2250/293 ,  G01N2291/044 ,  G01N2291/2675 ,  G01N2291/2693 ,  Y10T29/49318 ,  Y10T29/4973

Abstract: A method of repairing a turbine rotor wheel having an annular damaged dovetail includes removing the annular damaged dovetail from the turbine wheel, leaving a wheel body having a rim. A forged ring is welded to the rim and dovetails are formed in the forged ring to accommodate turbine bucket dovetails. The welding process including preheating, welding, and stress-relieving are performed while the rotor under repair is disposed in a lathe for rotation about a horizontal axis. The turbine rotor repair is accomplished from start to finish without displacing the rotor from the lathe.

Abstract translation: 修复具有环形损坏的燕尾榫的涡轮转子轮的方法包括从涡轮机叶轮移除环形损坏的燕尾榫，留下具有轮辋的轮体。 锻造环焊接到轮辋上，燕尾形成在锻造环中，以适应涡轮斗式燕尾榫。 在将修理的转子设置在车床中以围绕水平轴线旋转的同时进行包括预热，焊接和应力消除的焊接过程。 涡轮转子修复从头到尾完成，而不会使转子从车床移位。

公开(公告)号：US6084196A

公开(公告)日：2000-07-04

申请号：US30022

申请日：1998-02-25

Applicant: Gilbert E. Flowers ,  Earl L. Kelly, Jr. ,  Warren D. Grossklaus, Jr. ,  James D. Barber ,  Gray W. Grubbs ,  Levi Williams

Inventor： Gilbert E. Flowers ,  Earl L. Kelly, Jr. ,  Warren D. Grossklaus, Jr. ,  James D. Barber ,  Gray W. Grubbs ,  Levi Williams

IPC: B23K10/02 ,  B23K9/00

CPC classification number: B23K9/167 ,  B23K10/027 ,  B23K9/32 ,  B23P6/007 ,  F01D5/005 ,  B23K2201/001

Abstract: A nickel-base superalloy article which is susceptible to strain-age cracking and has a directionally oriented, single crystal, or equiaxed grain structure is repaired with minimal welding heat input into the article. The article is first heated to a welding temperature of from about 1650.degree. F. to about 2000.degree. F. in an inert atmosphere. A damaged area of the article is weld repaired using a plasma-transferred arc welder which vaporizes a filler metal in a plasma arc and deposited the vaporized metal onto the article to form a weld overlay. Minimal additional heat is added to the article during welding, as the weldment metal is vaporized remotely from the article.

Abstract translation: 容易受应变时效破裂并具有定向取向，单晶或等轴晶粒结构的镍基超耐热合金制品以最小的焊接热量输入到制品中进行修复。 首先在惰性气氛中将制品加热至约1650°F至约2000°F的焊接温度。 使用等离子体转移电弧焊机对制品的损坏区域进行焊接修补，其将等离子体电弧中的填充金属蒸发并将蒸发的金属沉积到制品上以形成焊接覆盖层。 在焊接期间，最少额外的热量被加入到制品中，因为焊件金属被远离制品蒸发。

公开(公告)号：US6065344A

公开(公告)日：2000-05-23

申请号：US200722

申请日：1998-11-27

Applicant: John Francis Nolan ,  Robert Matthew Benson ,  Dennis Eugene Lessard

Inventor： John Francis Nolan ,  Robert Matthew Benson ,  Dennis Eugene Lessard

IPC: B23K9/00 ,  B23K9/02 ,  B23K9/167 ,  G01N29/24 ,  G01N29/00

CPC classification number: B23P6/005 ,  B23K9/0026 ,  B23K9/0213 ,  B23K9/167 ,  G01N29/24 ,  B23K2201/001 ,  G01N2291/044 ,  G01N2291/2675 ,  G01N2291/2693

Abstract: A damaged turbine rotor wheel dovetail is repaired by cutting off the annular dovetail and welding a new forged ring onto the remaining wheel body. Fine-line welding is accomplished by inserting welding apparatus into grooves opening through axial faces of the wheel body and ring and rotating the rotor to provide multiple welding passes. Periodic ultrasonic inspection of the welds is provided by applying an ultrasonic transducer to the periphery of the ring to detect defects in the weld. To enable the transducer to operate at high welding temperatures, a manifold is disposed about the transducer defining a coolant cavity. Cooling medium is supplied the coolant cavity to maintain the transducer operable within predetermined temperature operating limits.

Abstract translation: 通过切割环形燕尾榫并将新的锻造环焊接到剩余的车轮主体上来修复损坏的涡轮转子轮燕尾榫。 通过将焊接设备插入通过轮体和环的轴向面的槽中并且使转子旋转以提供多个焊接过程来实现细线焊接。 通过在环的周围施加超声波换能器来检测焊缝中的缺陷，来提供对焊缝的定期超声波检查。 为了使传感器能够在高焊接温度下工作，歧管围绕换能器设置，限定冷却剂腔。 向冷却介质供应冷却剂腔，以使换能器在预定的温度操作限度内可操作。

公开(公告)号：US6049979A

公开(公告)日：2000-04-18

申请号：US200723

申请日：1998-11-27

Applicant: John Francis Nolan ,  Lawrence Michael Grycko ,  David Roy Parker ,  Gerald Richard Crawmer

Inventor： John Francis Nolan ,  Lawrence Michael Grycko ,  David Roy Parker ,  Gerald Richard Crawmer

IPC: B23K9/00 ,  B23K9/02 ,  B23K9/095 ,  B23K9/167 ,  C21D1/30 ,  C21D9/38 ,  F01D5/00 ,  B23P15/00

CPC classification number: B23P6/005 ,  B23K9/0026 ,  B23K9/0213 ,  B23K9/0956 ,  B23K9/167 ,  C21D9/38 ,  F01D5/005 ,  B23K2201/001 ,  C21D1/30 ,  F05D2250/293 ,  G01N2291/044 ,  G01N2291/2675 ,  G01N2291/2693 ,  Y10T29/49318 ,  Y10T29/49336

Abstract: The welding method for repairing a turbine rotor dovetail includes removal of buckets from damaged dovetails, removing a damaged dovetail from a turbine wheel, leaving a rotor wheel body having a rim. A plurality of ring sections are disposed about the wheel body rim, leaving axially opening annular grooves along opposite sides of the wheel. Welding apparatus including an electrode, welding wire and gas-carrying tube are inserted into the groove through an axial face of the wheel. One or more cover plates are disposed to overlie the groove at the location of its opening through the axial face of the wheel to at least partially seal the groove at its opening and maintain welding gas in the groove, enveloping the electrode and weld wire.

Abstract translation: 用于修理涡轮转子燕尾榫的焊接方法包括从损坏的燕尾槽中移除铲斗，从涡轮机轮移除损坏的燕尾榫，留下具有轮辋的转子轮体。 多个环形部分围绕车轮轮缘设置，沿车轮的相对侧留下轴向打开的环形槽。 包括电极，焊丝和气体输送管的焊接装置通过车轮的轴向面插入槽中。 一个或多个盖板被设置成在其开口的位置处通过轮的轴向面覆盖在凹槽上，以在其开口处至少部分地密封凹槽，并将焊接气体保持在凹槽中，包围电极和焊丝。

公开(公告)号：US6024792A

公开(公告)日：2000-02-15

申请号：US26782

申请日：1998-02-20

Applicant: Wilfried Kurz ,  Werner Gaumann ,  Hans-Werner Bieler ,  Jean-Daniel Wagniere ,  Hansjakob Rusterholz

Inventor： Wilfried Kurz ,  Werner Gaumann ,  Hans-Werner Bieler ,  Jean-Daniel Wagniere ,  Hansjakob Rusterholz

IPC: C30B11/00 ,  C30B13/00 ,  C30B13/24 ,  C30B25/04

CPC classification number: B22F3/1055 ,  B23K26/32 ,  B23K26/34 ,  B23K35/004 ,  B23K35/30 ,  B23K35/3033 ,  B23K35/3046 ,  C30B11/00 ,  C30B13/00 ,  C30B13/24 ,  C30B29/52 ,  B23K2201/001 ,  B23K2203/02 ,  B23K2203/08 ,  B23K2203/26 ,  B23K2203/50 ,  Y02P10/295 ,  Y10S117/904 ,  Y10S4/904

Abstract: In the method for manufacturing monocrystalline structures, parts or workpieces of metallic super-alloys on substrates with a monocrystalline structure or monocrystalline structures, the surface of the substrate is melted with an energy beam of high energy density from an energy source. The material which is to be introduced into the monocrystalline structure is supplied to the melted region of the substrate. The supplied material is completely melted. The energy input with the energy beam is regulated and/or controlled in such a manner that the speed of solidification and the temperature gradient lie in the dendritic crystalline region in the GV diagram, outside the globulitic region.

Abstract translation: 在具有单晶结构或单晶结构的衬底上制造单晶结构，金属超合金的零件或工件的方法中，用来自能量源的能量密度高的能量束熔化衬底的表面。 要引入单晶结构的材料被供应到基板的熔化区域。 所供应的材料完全熔化。 以能量束的能量输入被调节和/或控制，使得凝固速度和温度梯度位于球状区域外的GV图中的树枝状结晶区域。

公开(公告)号：US5735448A

公开(公告)日：1998-04-07

申请号：US740147

申请日：1996-10-22

Applicant: Peter J. Draghi ,  Norman Pietruska ,  Wayne K. Armstrong

Inventor： Peter J. Draghi ,  Norman Pietruska ,  Wayne K. Armstrong

IPC: F01D5/28 ,  B05D7/14 ,  B23K35/02 ,  B23K35/14 ,  B23K35/30 ,  B23P6/04 ,  C23C30/00 ,  C23G5/00 ,  F02C7/00 ,  B23K1/008

CPC classification number: B23P6/007 ,  B23K35/025 ,  B23K35/3033 ,  B23K35/3046 ,  C23G5/00 ,  B23K2201/001

Abstract: A repair coating for superalloy articles, such as gas turbine engine components, includes a volatile organic carrier or water-based carrier, a fluxing agent, a thickening agent, balance a filler mix. The filler mix consists of at least two distinct particulate components. The mix includes a first particulate component having a composition which approximates that of the article being repaired. The mix also includes a second particulate component having a composition approximating that of the article and a melting point depressant, such as boron. This melting point depressant is substantially in excess of that in the article and sufficient to provide melting of a portion of the mix at a processing temperature below the melting temperature of the article. The above filler mix is blended with the other constituents to form the repair coating which is applied to an article. A series of heating/cooling cycles is performed to ensure that the repair cooling properly melts, wets, and bonds to the article and that the melting point depressant diffuses into the article.

Abstract translation: 用于超级合金制品（例如燃气轮机发动机部件）的修补涂层包括挥发性有机载体或水基载体，助熔剂，增稠剂，平衡填料混合物。 填料混合物由至少两种不同的颗粒组分组成。 混合物包括具有近似于待修补物品的组成的第一颗粒组分。 混合物还包括具有接近制品的组成和熔点降低剂如硼的第二颗粒组分。 该熔点抑制剂基本上超过制品中的熔点降低剂，并且足以在低于制品的熔融温度的加工温度下提供一部分混合物的熔融。 将上述填料混合物与其它组分混合以形成施加到制品上的修补涂层。 执行一系列加热/冷却循环以确保修复冷却适当地熔化，润湿并粘合到制品上，并且降低熔点的物质扩散到制品中。

公开(公告)号：US5666643A

公开(公告)日：1997-09-09

申请号：US655276

申请日：1996-05-15

Applicant: Richard P. Chesnes ,  Stephen J. Ferrigno ,  David E. Budinger ,  Melvin R. Jackson

Inventor： Richard P. Chesnes ,  Stephen J. Ferrigno ,  David E. Budinger ,  Melvin R. Jackson

IPC: B23K35/02 ,  B23K35/30 ,  B22F7/00

CPC classification number: B23P6/002 ,  B23K1/0018 ,  B23K35/0222 ,  B23K35/0244 ,  B23P6/045 ,  F01D5/005 ,  B23K2201/001 ,  B23K35/025 ,  B23K35/3033 ,  B23K35/3046 ,  Y10T428/12035 ,  Y10T428/12056 ,  Y10T428/12097 ,  Y10T428/1216

Abstract: A braze material is provided for repairing an article, and particularly components formed from cobalt and nickel-base superalloys, such as gas turbine engine components. The braze material is composed of high melt particles distributed within a braze alloy. The braze alloy can be any suitable bonding material of the type used to repair components that must operate at high temperatures. The particles are single crystal, directionally solidified or equiaxed particles formed from a superalloy or ceramic material, or mixtures thereof. Importantly, the particles have an aspect ratio (length to width) of at least 4:1. The braze material can be provided and used in the form of a slurry, a presintered preform, a plasticized tape, or in a powdered form.

Abstract translation: 提供钎焊材料用于修复制品，特别是由钴和镍基超级合金（例如燃气轮机发动机部件）形成的部件。 钎焊材料由分布在钎焊合金中的高熔体颗粒组成。 钎焊合金可以是用于修复必须在高温下操作的部件的类型的任何合适的粘合材料。 颗粒是由超级合金或陶瓷材料形成的单晶，定向凝固或等轴的颗粒，或其混合物。 重要的是，颗粒的纵横比（长宽比）至少为4:1。 钎焊材料可以以浆料，预烧结预制件，增塑胶带或粉末形式的形式提供和使用。

公开(公告)号：US5363555A

公开(公告)日：1994-11-15

申请号：US45097

申请日：1993-04-12

Applicant: John O. Fowler ,  Brian Richardson

Inventor： John O. Fowler ,  Brian Richardson

IPC: B23K20/00 ,  B21D26/055 ,  B21D53/04 ,  B23K20/02 ,  B23K20/18 ,  B23K31/02

CPC classification number: B21D26/055 ,  B21D53/045 ,  B23K20/023 ,  B23K20/18 ,  B23K2201/001 ,  Y10T29/49339

Abstract: A plurality of titanium sheets are assembled into a stack. At least one of the sheets is provided with a stop off material on one of its surfaces to prevent diffusion bonding at predetermined positions. The edges of the sheets are welded together and a pipe is welded to the stack to interconnect with the stop off material to form a sealed assembly. The assembly is heated and externally pressurized to diffusion bond the sheets together. The integral structure so formed is heated and opposite ends of the integral structure are twisted relatively to contour the integral structure to a predetermined shape. The integral structure is internally pressurized to break the adhesive bonds. The integral structure is heated and internally pressurized to superplastically form one sheet to produce an article, e.g. a fan blade.

Abstract translation: 将多个钛片组装成堆叠。 至少一个片材在其一个表面上设置有停止材料，以防止在预定位置的扩散接合。 板的边缘被焊接在一起，并且管被焊接到堆叠以与停止材料互连以形成密封组件。 组件被加热和外部加压以将片材扩散粘合在一起。 这样形成的整体结构被加热，并且整体结构的相对端被相对扭转以将整体结构轮廓化为预定的形状。 整体结构内部加压以破坏粘结。 整体结构被加热并在内部被加压以超塑性地形成一片以产生制品，例如。 风扇叶片。