公开(公告)号：US4914270A

公开(公告)日：1990-04-03

申请号：US268770

申请日：1988-11-08

Applicant: Stephen M. Copley ,  Michael Bass ,  Ralph Hsu

Inventor： Stephen M. Copley ,  Michael Bass ,  Ralph Hsu

IPC: B23K26/073 ,  B23K26/08 ,  B23K26/36

CPC classification number: B23K26/08 ,  B23K26/073 ,  B23K26/082 ,  B23K26/362 ,  B23K2201/001

Abstract: Laser scanning apparatus and a related method for scanning a workpiece in a raster scan pattern, to remove a series of thin, overlapping layers in the workpiece and thereby provide a stepwise approximation to a contoured, three-dimensional shape. In one embodiment, the beam follows a raster scan pattern with scans that are parallel to the removed layer's boundary. The wall bounding the layer is made to be substantially perpendicular to the plane of the removed layer, regardless of the wall's orientation, by tilting the beam about an axis normal to a specified reference plane and by elliptically polarizing the beam to a selected degree. A substantially constant proportion of the beam's average intensity is thereby absorbed at each point along the boundary wall, regardless of the wall's orientation relative to the reference plane. In another embodiment, the beam scans repeatedly along an axis parallel to a specified reference plane. Like the first embodiment, the boundary wall is made to be substantially perpendicular to the plane of the removed layer, regardless of its orientation, by tilting the beam about an axis normal to the reference plane and by elliptically polarizing the beam to a selected degree.

Abstract translation: 激光扫描装置和用于以光栅扫描图案扫描工件的相关方法，以去除工件中的一系列薄的重叠层，从而提供对轮廓的三维形状的逐步近似。 在一个实施例中，光束遵循具有平行于去除的层的边界的扫描的光栅扫描图案。 通过围绕垂直于指定参考平面的轴倾斜波束并且通过将光束椭圆偏振至选定的程度，使层的边界基本上垂直于去除层的平面，而不管壁的取向如何。 因此，不管壁相对于参考平面的取向如何，沿着边界壁的每个点处，基本上恒定的光束平均强度的比例被吸收。 在另一个实施例中，光束沿着平行于指定参考平面的轴重复扫描。 与第一实施例一样，通过围绕垂直于参考平面的轴倾斜光束并且通过将光束椭圆偏振至选定的程度，边界壁被制成基本垂直于去除层的平面，而不管其取向如何。

公开(公告)号：US4804815A

公开(公告)日：1989-02-14

申请号：US60758

申请日：1987-06-01

Applicant: Mark A. Everett

Inventor： Mark A. Everett

IPC: B05B7/22 ,  B23K26/00 ,  B23K26/34 ,  B23K35/30 ,  B23P6/00

CPC classification number: B23K35/304 ,  B05B7/228 ,  B23K26/32 ,  B23K26/34 ,  B23K26/342 ,  B23K35/002 ,  B23K2201/001 ,  B23K2203/08 ,  B23K2203/26 ,  B23P6/007

Abstract: A process for preventing crack formation in nickel alloy substrates having a gamma-prime phase includes providing a substrate comprised of a nickel alloy having a gamma-prime phase. A portion of the substrate is irradiated with a laser beam and thereby forms a molten pool of the alloy. A supply of coating particles are dispersed within the pool, the particles are comprised of a nickel alloy having gamma-prime forming constitutents. Rapid relative motion between the beam and the pool is effected so that the pool rapidly solidifies and thereby minimizes the formation of gamma-prime therein and adjacent thereto.

公开(公告)号：US4736504A

公开(公告)日：1988-04-12

申请号：US88351

申请日：1987-08-12

Applicant: Terry L. Jones

Inventor： Terry L. Jones

IPC: B23K20/00 ,  B23K20/02 ,  B23K37/04 ,  F01D5/30 ,  B21K3/04

CPC classification number: F01D5/3061 ,  B23K20/00 ,  B23K20/02 ,  B23K37/04 ,  B23K2201/001 ,  Y10T29/49321 ,  Y10T29/4981

Abstract: A method for manufacturing bladed disks, or blisks, for turbines by press welding of blades or outer airfoil elements to blade stives or inner airfoil elements on a disk is characterized by the provision on the outer and inner airfoil elements of flanges of excess flash material having alignment holes for dowel pins that assure alignment of leading and trailing edges of the airfoil elements during pressure welding, followed by removal of the excess flash material and the included dowel pins.

Abstract translation: 用于通过将叶片或外部翼型元件压向焊盘上的叶片桩或内部翼型元件来制造用于涡轮机的叶片盘或叶片的方法的特征在于在外部和内部翼型元件上提供具有多余闪光材料的凸缘的凸缘， 用于定位销的对准孔，用于在压力焊接期间确保翼型元件的前缘和后缘对齐，随后移除多余的闪光材料和所包括的定位销。

公开(公告)号：US4633554A

公开(公告)日：1987-01-06

申请号：US763744

申请日：1985-08-08

Applicant: Robert E. Clark ,  Dennis R. Amos

Inventor： Robert E. Clark ,  Dennis R. Amos

IPC: B23K31/00 ,  B23K9/00 ,  B23K9/02 ,  B23K9/028 ,  B23P6/00 ,  F01D5/02 ,  H02K15/00 ,  B23P15/00 ,  B21K3/00

CPC classification number: B23P6/005 ,  B23K9/0026 ,  B23K9/0213 ,  F01D5/025 ,  H02K15/0006 ,  B23K2201/001 ,  Y10S29/048 ,  Y10T29/49229 ,  Y10T29/49233 ,  Y10T29/49728 ,  Y10T29/4973

Abstract: This is a method for repairing low alloy steel steam turbine (both high pressure and low pressure sections) or generator rotors. The defective section of the original rotor is removed and a replacement end is used, with mating attachments machined on the replacement end and the original rotor. The inner portion of the weld joining the replacement end to the original rotor is provided by a narrow gap weld, either by gas metal or by submerged arc welding. The outer 1/2-2 inches of the weld is provided by gas tungsten arc welding. The mating attachment and at least the inside 1/4 inch of the weld is bored out to remove possible crack initiation sites and to provide a smooth inspectable bore. In this manner, a fast and reliable technique is provided which provides accurate alignment, fast, essentially distortion free welding, and the superior mechanical properties of gas tungsten arc welding in the outer, more highly stressed zones.

Abstract translation: 这是一种修复低合金钢蒸汽轮机（高压和低压部分）或发电机转子的方法。 拆下原始转子的缺陷部分，并使用更换端，配置附件在替换端和原始转子上加工。 将替换端连接到原始转子的焊缝的内部部分由气隙金属或浸没电弧焊接的窄间隙焊缝提供。 焊缝的外部1 / 2-2英寸由气体钨弧焊提供。 匹配附件和至少焊缝的1/4英寸是无孔的，以消除可能的裂纹起始位置并提供平滑的可检查孔。 以这种方式，提供了一种快速可靠的技术，其提供精确对准，快速，基本上无失真的焊接，以及在外部，更高应力区域中气体钨电弧焊接的优异的机械性能。

公开(公告)号：US4613744A

公开(公告)日：1986-09-23

申请号：US635604

申请日：1984-07-30

Applicant: Michael J. Fraser

Inventor： Michael J. Fraser

IPC: B23P6/00 ,  C21D9/50 ,  H05B3/36

CPC classification number: B23P6/002 ,  B23K37/02 ,  C21D9/50 ,  B23K2201/001

Abstract: A method of repair of an article incorporating the application of considerable thermal energy, e.g. a welding operation, requires heating of the article both in the repair area and surrounds wherein the heating of the repair area and surrounds is carried out by flexible heating mats and wherein fixing means are used to securely fix the heating mats to the article, which fixing means may readily release at least a part of the heating mats whereby that part may be folded back or otherwise removed from the repair area to allow the repair step to be carried out. After repair, that part of the heating mats removed from the repair area may be replaced.

Abstract translation: 包括施加相当大的热能的制品的修复方法，例如， 焊接操作需要在修理区域和周围加热制品，其中修补区域和周围的加热通过柔性加热垫进行，并且其中使用固定装置将加热垫牢固地固定在制品上，固定 装置可以容易地释放加热垫的至少一部分，由此该部分可以被折叠或以其他方式从修复区域移除以允许执行修复步骤。 修理后，可以更换从维修区域中取出的部分加热垫。

公开(公告)号：US4549058A

公开(公告)日：1985-10-22

申请号：US537915

申请日：1983-09-30

Applicant: Bartolomeo P. DelMastro ,  Frederick Eckart

Inventor： Bartolomeo P. DelMastro ,  Frederick Eckart

IPC: B23K26/00 ,  F01D11/00

CPC classification number: F01D11/005 ,  B23K26/206 ,  B23K26/21 ,  B23K26/211 ,  B23K2201/001

Abstract: The slots for accommodating feather seals in the turbine vanes of a gas turbine engine has the end thereof sealed off by use of weld wire inserted into the slot and simultaneously welded and cut to the required length.

Abstract translation: 用于容纳燃气涡轮发动机的涡轮叶片中的羽毛密封件的槽的端部通过使用插入到槽中的焊丝而被密封，同时焊接并切割成所需长度。

公开(公告)号：US4386257A

公开(公告)日：1983-05-31

申请号：US239275

申请日：1981-03-02

Applicant: John J. Brennan

Inventor： John J. Brennan

IPC: B23K9/035 ,  B23K15/08 ,  B23K26/18 ,  B23K27/00

CPC classification number: B23K15/085 ,  B23K26/18 ,  B23K9/035 ,  B23K2201/001

Abstract: To prevent corrosion in subsequent high temperature exposure, backers for electron beam hole drilling of nickel base superalloys contain glass particulates of the borosilicate and aluminosilicate types, having an alkali metal oxide content of less than 1 weight percent and a heavy metal (Pb, Bi, Sn, Sb, As) content of less than 25 ppm. Preferably the binder is a soluble inorganic material, such as magnesium dichromate or a polymer, also free of alkali metal content.

Abstract translation: 为了防止随后的高温暴露中的腐蚀，镍基超级合金的电子束钻孔用支撑体含有硼硅酸盐和硅铝酸盐类型的玻璃颗粒，碱金属氧化物含量小于1重量％，重金属（Pb，Bi， Sn，Sb，As）含量小于25ppm。 优选地，粘合剂是可溶性​​无机材料，例如也不含碱金属含量的重铬酸镁或聚合物。

公开(公告)号：US4141127A

公开(公告)日：1979-02-27

申请号：US745166

申请日：1976-11-26

Applicant: Salvatore J. Cretella ,  Matthew Bernardo ,  Ralph T. De Musis

Inventor： Salvatore J. Cretella ,  Matthew Bernardo ,  Ralph T. De Musis

IPC: B23P6/00 ,  F01D5/00 ,  F01D5/28 ,  B23P15/02 ,  B23P7/04

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 method of refurbishing vane or blade components. Used turbine vanes or blades are cleaned, annealed and in some cases slotted adjacent their ends, after which any cooling passages (in the case of vanes) are welded closed and all cracks welded over, on both leading and trailing edges. The trailing edge, for a vane or blade component 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 which can be 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: 一种翻新叶片或叶片部件的方法。 使用的涡轮叶片或叶片被清洁，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（在叶片的情况下）被焊接封闭，并且所有裂纹在前缘和后缘两端焊接。 用于具有短弦的叶片或叶片部件的后缘通过使用合金丝沿着其全长进行焊接来构建，之后通过焊接将相邻端部切割的任何槽封闭。 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，厚度可达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。

公开(公告)号：US4086690A

公开(公告)日：1978-05-02

申请号：US680801

申请日：1976-04-27

Applicant: Felix Bernasconi

Inventor： Felix Bernasconi

IPC: B23K9/028 ,  F01D5/06 ,  B23P15/00

CPC classification number: B23K15/04 ,  B23K15/0093 ,  B23K9/0282 ,  F01D5/063 ,  B23K2201/001 ,  Y10T29/4932

Abstract: A method for producing a rotor made from discs joined together in succession in side-by-side relation by welding comprises the steps of assembling each rotor disc and the succeeding disc next to be joined such that their axes are in horizontal alignment, pressing the two discs together thereby to place their interfaces under axial pressure, pre-heating each two discs to be joined to the proper working temperature, joining the discs by welding in a circumferentially extending welding seam while maintaining the pressure, repeating the assembling, pre-heating and welding operations until all of the discs have been welded together to establish the complete rotor, thereafter heat-treating the completed rotor, and finally subjecting the completed rotor to a hot true-running test. All of these operations take place within a common heating box into which hot air is introduced to effect the heating. The apparatus for performing the method features a trolley located within the heating box and on which each next-to-be-welded-on disc is carried into face-to-face pressure contact with a previously welded-on disc. The end discs of the rotor are provided with shaft extensions and the latter serve to support the rotor on rests in order to carry out the running and truing operations. The heating box is constituted by a number of axial modules joined together in succession as the discs are welded together in succession to provide a correspondingly increasing axial length.

Abstract translation: 由通过焊接并排连接在一起的圆盘制造的转子的方法包括以下步骤：将每个转子盘和随后的盘组装在一起以使其轴线水平对准，按压两个 将其接合在一起，将它们的界面置于轴向压力下，将要接合的两个盘预加热到适当的工作温度，通过在周向延伸的焊缝中焊接来连接盘，同时保持压力，重复组装，预热和 焊接操作，直到所有的盘被焊接在一起以建立完整的转子，然后对完成的转子进行热处理，最后对完成的转子进行热真正运行试验。 所有这些操作都在一个通常的加热箱内进行，在该加热箱内引入热空气来进行加热。 用于执行该方法的装置的特征在于位于加热箱内的手推车，并且每个下一个待焊接的盘被携带与先前焊接的盘的面对面的压力接触。 转子的端盘设置有轴延伸部，后者用于将转子支撑在静止位置上，以便执行运行和修整操作。 加热箱由多个轴向模块组成，这些轴向模块连续地连接在一起，因为盘被连续焊接在一起以提供相应增加的轴向长度。

公开(公告)号：US4042162A

公开(公告)日：1977-08-16

申请号：US595025

申请日：1975-07-11

Applicant: George B. Meginnis ,  Earl W. Sodeberg

Inventor： George B. Meginnis ,  Earl W. Sodeberg

IPC: B23K20/00 ,  B23K20/02 ,  B23K20/14 ,  F01D5/18 ,  B23K19/00

CPC classification number: F01D5/182 ,  B23K20/00 ,  B23K20/02 ,  B23K20/14 ,  B23K2201/001 ,  Y10T29/49341

Abstract: A method of bonding a laminated porous sheath to a cast strut includes the step of performing a compressible pad to have a plurality of closely spaced grooves on one surface thereon and a plurality of spaced apart lands on the opposite face thereof; locating a preformed porous laminate sheath over the outer surface of a cast strut and laser welding it thereto and thereafter assembling the preformed compressible pad to locate the plurality of grooves thereon in overlying relationship to a plurality of airflow openings in the porous laminated sheath and with ribs on either side of the grooves being located in juxtaposed relationship with the outer surface of the porous laminated sheath for uniformly distributing a load thereto; locating the preassembled casting, sheath and compressible pad within a contoured opening formed by a three piece pressure block fixture and applying a predetermined pressure to the assembled parts while subjecting them to a predetermined bond temperature while applying a vacuum.

Abstract translation: 将层叠的多孔护套粘合到铸造支柱上的方法包括执行可压缩垫以在其一个表面上具有多个紧密间隔的凹槽和在其相对表面上的多个间隔开的平台的步骤; 将预成型的多孔层压体护套定位在铸造支柱的外表面上并将其激光焊接到其上，然后组装预成形的可压缩垫以将多个槽放置在与多孔层压护套中的多个气流开口相对的上方，并且具有肋 槽的任一侧位于与多孔层压护套的外表面并置的关系中，用于均匀地分配负载; 将预组装的铸件，护套和可压缩垫定位在由三件式压块固定件形成的成型开口内，并在施加真空的同时使其达到预定的粘合温度，对组装好的部件施加预定压力。