Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | Ceramics; Controls, Diagnostics, and Instrumentation; Education; Manufacturing Materials and Metallurgy |
| Herausgeber (Verlag) | American Society of Mechanical Engineers(ASME) |
| ISBN (Print) | 9780791851128 |
| Publikationsstatus | Veröffentlicht - 30 Aug. 2018 |
| Veranstaltung | ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition, GT 2018 - Oslo, Norwegen Dauer: 11 Juni 2018 → 15 Juni 2018 |
Publikationsreihe
| Name | Proceedings of the ASME Turbo Expo |
|---|---|
| Band | 6 |
Abstract
The widespread adoption of blade integrated disks (blisks) made of titanium demands tailored re-generation processes to increase sustainability and economic efficiency. High standards regarding geometrical accuracy and functional properties as well as the unique characteristics of each type of damage complicate the repair. Thus, flexible and well-designed processes are necessary. Typically, material deposit is followed by a milling or grinding process to restore the original shape. Here, not only the individual repair processes have to be controlled, but also their interaction. For example, depending on the resulting microstructure of the welded seam, the re-contouring process needs to be adapted to minimize tool wear as well as shape deviations of the complex blade geometries. In this paper, the process chain for a patch repair is examined, consisting of a TIG welding process followed by 5-axis ball nose end milling. Conventional TIG as well as a modified TIG process producing a finer grain structure and enhanced mechanical properties of deposited material were investigated. Grain refinement was achieved by SiC particles added to the weld pool. Based on the characteristics of the fusion material and static stiffness of the component, a methodology is introduced to minimize shape deviation induced by the subsequent milling process. Special attention is given to tool orientation, which has a significant impact on the kinematics and resulting process forces during milling. An electromagnetic guided machine tool is used for compensation of workpiece deflection.
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Allgemeiner Maschinenbau
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Ceramics; Controls, Diagnostics, and Instrumentation; Education; Manufacturing Materials and Metallurgy. American Society of Mechanical Engineers(ASME), 2018. (Proceedings of the ASME Turbo Expo; Band 6).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Technology-Based Re-Contouring of Blade Integrated Disks After Weld Repair
AU - Denkena, B.
AU - Mücke, A.
AU - Schumacher, T.
AU - Langen, D.
AU - Hassel, T.
N1 - Funding Information: The authors kindly thank the German Research Foundation (DFG) for the financial support of the Collaborative Research Center (SFB) 871 "Regeneration of Complex Capital Goods" which provides the opportunity of their collaboration in the research projects B2 "Dexterous Regeneration Cell", B6 "Arc Welding of Titanium-Alloys" and C1 "Process Design". Funding Information: The authors kindly thank the German Research Foundation (DFG) for the financial support of the Collaborative Research Center (SFB) 871 “Regeneration of Complex Capital Goods” which provides the opportunity of their collaboration in the research projects B2 “Dexterous Regeneration Cell”, B6 “Arc Welding of Titanium-Alloys” and C1 “Process Design”. Publisher Copyright: © 2018 ASME. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2018/8/30
Y1 - 2018/8/30
N2 - The widespread adoption of blade integrated disks (blisks) made of titanium demands tailored re-generation processes to increase sustainability and economic efficiency. High standards regarding geometrical accuracy and functional properties as well as the unique characteristics of each type of damage complicate the repair. Thus, flexible and well-designed processes are necessary. Typically, material deposit is followed by a milling or grinding process to restore the original shape. Here, not only the individual repair processes have to be controlled, but also their interaction. For example, depending on the resulting microstructure of the welded seam, the re-contouring process needs to be adapted to minimize tool wear as well as shape deviations of the complex blade geometries. In this paper, the process chain for a patch repair is examined, consisting of a TIG welding process followed by 5-axis ball nose end milling. Conventional TIG as well as a modified TIG process producing a finer grain structure and enhanced mechanical properties of deposited material were investigated. Grain refinement was achieved by SiC particles added to the weld pool. Based on the characteristics of the fusion material and static stiffness of the component, a methodology is introduced to minimize shape deviation induced by the subsequent milling process. Special attention is given to tool orientation, which has a significant impact on the kinematics and resulting process forces during milling. An electromagnetic guided machine tool is used for compensation of workpiece deflection.
AB - The widespread adoption of blade integrated disks (blisks) made of titanium demands tailored re-generation processes to increase sustainability and economic efficiency. High standards regarding geometrical accuracy and functional properties as well as the unique characteristics of each type of damage complicate the repair. Thus, flexible and well-designed processes are necessary. Typically, material deposit is followed by a milling or grinding process to restore the original shape. Here, not only the individual repair processes have to be controlled, but also their interaction. For example, depending on the resulting microstructure of the welded seam, the re-contouring process needs to be adapted to minimize tool wear as well as shape deviations of the complex blade geometries. In this paper, the process chain for a patch repair is examined, consisting of a TIG welding process followed by 5-axis ball nose end milling. Conventional TIG as well as a modified TIG process producing a finer grain structure and enhanced mechanical properties of deposited material were investigated. Grain refinement was achieved by SiC particles added to the weld pool. Based on the characteristics of the fusion material and static stiffness of the component, a methodology is introduced to minimize shape deviation induced by the subsequent milling process. Special attention is given to tool orientation, which has a significant impact on the kinematics and resulting process forces during milling. An electromagnetic guided machine tool is used for compensation of workpiece deflection.
UR - http://www.scopus.com/inward/record.url?scp=85053861024&partnerID=8YFLogxK
U2 - 10.1115/gt2018-76364
DO - 10.1115/gt2018-76364
M3 - Conference contribution
AN - SCOPUS:85053861024
SN - 9780791851128
T3 - Proceedings of the ASME Turbo Expo
BT - Ceramics; Controls, Diagnostics, and Instrumentation; Education; Manufacturing Materials and Metallurgy
PB - American Society of Mechanical Engineers(ASME)
T2 - ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition, GT 2018
Y2 - 11 June 2018 through 15 June 2018
ER -