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    Apparatus for welding blades to rotors
    71.
    发明授权
    Apparatus for welding blades to rotors 失效
    焊接刀片到转子的装置

    公开(公告)号：US3770933A

    公开(公告)日：1973-11-06

    申请号：US3770933D

    申请日：1972-04-24

    Applicant: NASA

    Inventor： HOLKO K ,  MOORE T

    IPC: B23K11/00 ,  F01D5/30 ,  B23K11/04

    CPC classification number: B23K11/002 ,  B23K2201/001 ,  F01D5/3061

    Abstract: Using magnetic force upset welding to form T-joints between dissimilar thickness parts. This type of resistance welding is used to join compressor and turbine parts thereby reducing the weight and cost of a jet engine.

    Abstract translation: 使用磁力镦锻焊接形成不同厚度部件之间的T型接头。 这种电阻焊接用于连接压缩机和涡轮机部件，从而降低喷气发动机的重量和成本。

    Welding blades to rotors
    72.
    发明授权
    Welding blades to rotors 失效
    焊接刀片到转子

    公开(公告)号：US3745300A

    公开(公告)日：1973-07-10

    申请号：US3745300D

    申请日：1971-04-16

    Applicant: NASA

    Inventor： HOLKO K ,  MOORE T

    IPC: B23K11/00 ,  B23K11/04

    CPC classification number: B23K11/002 ,  B23K2201/001

    Abstract: USING MAGNETIC FORCE UPSET WELDING TO FORM T-JOINTS BETWEEN DISSIMILAR THICKNESS PARTS. THIS TYPE OF RESISTANCE WELDING IS USED TO JOIN COMPRESSOR AND TURBINE PARTS THEREBY REDUCING THE WEIGHT AND COST OF A JET ENGINE.

    Turbochargers
    73.
    发明授权
    Turbochargers 失效
    TURBOCHARGERS

    公开(公告)号：US3421201A

    公开(公告)日：1969-01-14

    申请号：US41572464

    申请日：1964-12-03

    Applicant: CATERPILLAR TRACTOR CO

    Inventor： OBERLE THEODORE L ,  CALTON MARION R

    IPC: B22D19/00 ,  B23K20/12 ,  B23K27/00 ,  B23K35/24

    CPC classification number: B23K20/129 ,  B22D19/00 ,  B23K2201/001

    Abstract: 1,114,458. Welding by pressure. CATERPILLAR TRACTOR CO. 25 Nov., 1965 [3 Dec., 1964], No. 47418/65. Heading B3R. In bonding metal parts which comprise material which can precipitate a hard, brittle intermetallic compound, e.g. a carbide, ends of the parts are engaged in rotational rubbing contact under pressure, the initial speedof relative rotation and the total energy employed are restricted to minimize precipitation of substantial amounts of the compound and the bond zone is worked plastically at low speeds as the bond forms to shatter and disperse compound which does precipitate. A nickel base superalloy turbine wheel 12, Fig. 1, and a carbon steel shaft 13, the alloy and carbon steel containing sufficient carbon and carbide forming elements to precipitate carbides are friction welded at initial outer edge speeds of 400 and 265 feet per minute using a flywheel means to store the required energy and expend it all in making the weld, a small amount of carbide being formed at 400 ft. per minute and eliminated at 265 ft. per minute. The lower speeds require a greater flywheel mass which makes a large part of the stored energy available for low speed plastic working of the bond zone as the bond forms. The inside diameter of the lower strength shaft is less than that of the turbine wheel and the outside diameter is greater to produce a larger end face on the lower strength part to prevent excessive flashing away thereof. The nickel base super alloy and carbon steel may be welded using initial outer edge speeds of 150-400 ft. per minute and a cobalt base " Stellite " alloy (Stellite is a Registered Trade Mark) and carbon steel may be welded using initial outer edge speeds of 150-350 ft. per minute.

    High temperature brazing fixture
    78.
    发明授权
    High temperature brazing fixture 有权
    高温钎焊夹具

    公开(公告)号：US6129257A

    公开(公告)日：2000-10-10

    申请号：US452243

    申请日：1999-12-01

    Applicant: Raymond Ruiwen Xu ,  Stephen N. Hammond ,  Richard P. Chesnes

    Inventor： Raymond Ruiwen Xu ,  Stephen N. Hammond ,  Richard P. Chesnes

    IPC: B23K3/08 ,  B23K1/14 ,  B23K37/04 ,  B21D39/02 ,  B21K25/00 ,  B23P15/02

    CPC classification number: B23K3/087 ,  B23K37/0426 ,  B23K2201/001 ,  Y10T29/49321

    Abstract: The present invention provides a brazing fixture and method of using the fixture which allows the brazing of a joint in an oxide-dispersion-strengthened (ODS) high temperature alloy workpiece where stresses in the workpiece operate to open the joint during the brazing process. The fixture is formed from the same ODS alloy as the workpiece, such that the fixture exhibits the same coefficient of thermal expansion as the workpiece. This allows maximization of surface area contact between the fixture and the workpiece during the brazing operation in order to force the workpiece to maintain its design dimensions and to prevent the joint from opening. The fixture includes a cavity preventing fixture/workpiece contact in the area of the braze to help control thermal lag in the area of the joint.

    Abstract translation: 本发明提供了一种钎焊固定装置和使用该夹具的方法，其允许在氧化物分散强化（ODS）高温合金工件中钎焊钎焊，其中工件中的应力在钎焊过程中打开接头。 夹具由与工件相同的ODS合金形成，使得夹具具有与工件相同的热膨胀系数。 这允许在钎焊操作期间使夹具和工件之间的表面积接触最大化，以便迫使工件保持其设计尺寸并防止接头打开。 夹具包括在钎焊区域中防止夹具/工件接触的腔体，以帮助控制接头区域的热滞后。

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