Drilling of intermetallic alloys gamma TiAl

Journal Article · Mon Jan 17 00:00:00 EST 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3552313· OSTI ID:21510135

Beranoagirre, A ^[1]; Olvera, D; Lopez de Lacalle, L N; Urbicain, G ^[2]

---

1. University of the Basque Country, UPV-EUP, Plaza Europa n1, 20018, San Sebastian (Spain)
2. University of the Basque Country, UPV-ETSI, Alameda Urquijo s/n, 48013, Bilbao (Spain)

Due to their high strength/weight ratio and resistance to corrosion and wear, superalloys such as gamma TiAl or Inconel 718 appear as the best choice for the high mechanical/thermal demands in the vicinity of the combustion chamber of aircraft engines. There are assembled parts such as cases, disks or blisks; in the manufacturing of these components the last drilling operation could jeopardize the full work integrity adding new costs to the just very expensive parts. Therefore drilling is a high-added value step in the complete sequence. The present work is framed within the study of hole making in advanced materials used for lightweight applications in aerospace sector. Within this context, the paper presents the results from milling tests on three types of gamma TiAl alloys (extruded MoCuSi, ingot MoCuSi and TNB) to define an optimal set of cutting parameters, which will contribute to open the increase in use of these special alloys. Drilling tools made of integral hard metal were used, applying different feeds and cutting speeds. The influence of cutting speed and feed is discussed.

• OSTI ID: 21510135
• Journal Information: AIP Conference Proceedings, Vol. 1315, Issue 1; Conference: AMPT2010: International conference on advances in materials and processing technologies, Paris (France), 24-27 Oct 2010; Other Information: DOI: 10.1063/1.3552313; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALLOYS
ALUMINIUM ALLOYS
CERMETS
COMBUSTION CHAMBERS
CORROSION
CORROSION RESISTANCE
CREEP
DRILLS
ENGINES
HARDNESS
INCONEL 718
MANUFACTURING
MECHANICAL PROPERTIES
THERMAL CONDUCTIVITY
TITANIUM ALLOYS
VELOCITY
ALLOY-NI53CR19FE19NB5MO3
ALUMINIUM ADDITIONS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
COMPOSITE MATERIALS
CORROSION RESISTANT ALLOYS
DRILLING EQUIPMENT
EQUIPMENT
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
INCONEL ALLOYS
IRON ALLOYS
MATERIALS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIOBIUM ALLOYS
PHYSICAL PROPERTIES
THERMODYNAMIC PROPERTIES
TITANIUM ADDITIONS
TRANSITION ELEMENT ALLOYS