STRUCTURAL BRAZE REPAIR OF HARD-TO-WELD SUPERALLOY COMPONENTS USING DIFFUSION ALLOY INSERT

To provide service-run parts with a great mechanical strength with a controlled narrow brazing gap size.SOLUTION: A method comprises the steps of: machining a tapered slot in a component 101; measuring the tapered slot to determine the dimensions 102; forming an insert to have a geometry correspondi...

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Bibliographic Details
Main Authors TOLLISON BRIAN LEE, CEM MURAT EMINOGLU, CUI YAN, SRIKANTH CHANDRUDU KOTTILINGAM, LIN DECHAO
Format Patent
LanguageEnglish
Japanese
Published 01.11.2018
Subjects
AIR INTAKES FOR JET-PROPULSION PLANTS
BLASTING
CLADDING OR PLATING BY SOLDERING OR WELDING
COMBINED OPERATIONS
COMBUSTION ENGINES
CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
GAS-TURBINE PLANTS
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MACHINE TOOLS
MECHANICAL ENGINEERING
METAL-WORKING NOT OTHERWISE PROVIDED FOR
OTHER WORKING OF METAL
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
TRANSPORTING
UNIVERSAL MACHINE TOOLS
WEAPONS
WELDING
WORKING BY LASER BEAM
WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OFELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKESTHE PLACE OF A TOOL
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Summary:To provide service-run parts with a great mechanical strength with a controlled narrow brazing gap size.SOLUTION: A method comprises the steps of: machining a tapered slot in a component 101; measuring the tapered slot to determine the dimensions 102; forming an insert to have a geometry corresponding to the tapered slot with a braze gap between an outer surface of the insert and an inner surface of the tapered slot 103; depositing a layer of a braze material on the outer surface of the insert 104, where the thickness of the layer corresponds to the braze gap; sintering the layer of the braze material on the outer surface of the insert to fabricate a diffusion layer 105; positioning the insert in the tapered slot 106; and brazing the diffusion layer to join the insert to the tapered slot 107. The treated component includes a surface having a tapered slot, an insert, and a braze joint.SELECTED DRAWING: Figure 1 【課題】ロウ付けギャップサイズを小さく制御することによりサービスランパーツに高い機械強度を与える。【解決手段】部品にテーパ付きスロットを機械加工し１０１、テーパ付きスロットは、寸法を決定するために計測される１０２。インサートが、インサートの外面とテーパ付きスロットの内面との間のロウ付けギャップを伴って、テーパ付きスロットに対応する幾何形状を有するように形成される１０３。ロウ付け材料の層がインサートの外面に付着され１０４、層の厚さがロウ付けギャップに対応する。インサートの外面にあるロウ付け材料の層は、拡散層を形成するように焼結される１０５。インサートは、テーパ付きスロット内に配置される１０６。拡散層は、インサートをテーパ付きスロットに結合するようにロウ付けされる１０７。処理された部品は、テーパ付きスロットを有する表面、インサート、およびロウ付けジョイントを含む。【選択図】図１
Bibliography:Application Number: JP20170245718