Hole Making by Electrical Discharge Machining (EDM) of -TiAl Intermetallic Alloys

Due to their excellent strength-to-weight ratio and corrosion and wear resistance, gamma-TiAl alloys are selected for aerospace and automotive applications. Since these materials are difficult to cut and machine by conventional methods, this study performed drilling tests using Electro Discharge Mac...

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Detalles Bibliográficos
Autores: Beranoagirre Imaz, Aitor, Urbicain Pelayo, Gorka, Calleja Ochoa, Amaia, López de Lacalle Marcaide, Luis Norberto
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/31868
Acceso en línea:http://hdl.handle.net/10810/31868
Access Level:acceso abierto
Palabra clave:gamma-TiAl intermetallic alloys
EDM
grinding
ti-6al-4v alloy
surface-roughness
enhancement
electrodes
workpiece
Descripción
Sumario:Due to their excellent strength-to-weight ratio and corrosion and wear resistance, gamma-TiAl alloys are selected for aerospace and automotive applications. Since these materials are difficult to cut and machine by conventional methods, this study performed drilling tests using Electro Discharge Machining (EDM) to compare the machinability between two different types of gamma-TiAl: extruded MoCusi and ingot MoCuSi. Different electrode materials and machining parameters were tested and wear, surface hardness, roughness and integrity were analyzed. The results indicate that extruded MoCuSi is preferable over MoCuSi ingots.