Permeability Study of Austenitic Stainless Steel Surfaces Produced by Selective Laser Melting
Por:
Segura-Cardenas, Emmanuel, Ramirez-Cedillo, Erick, Alejandro Sandoval-Robles, Jesus, Ruiz-Huerta, Leopoldo, Caballero-Ruiz, Alberto, Siller, Hector R.
Publicada:
1 dic 2017
Categoría:
Materials science (miscellaneous)
Resumen:
Selective laser melting (SLM) is emerging as a versatile process for
fabricating different metal components with acceptable mechanical
properties and geometrical accuracy. The process has been used in the
manufacturing of several parts (e.g., aerospace or biomedical
components), and offers the capability to tailor the performance of
several surface and mechanical properties. In this work, permeability
properties and surface roughness of stainless steel (SS316L) surfaces
were evaluated through experimentation with three different laser
scanning patterns (chessboard, meander, and stripe), and different
sloping angles between the fabricated surface and the laser beam
incident on the process. Results showed that for each scanning pattern,
the roughness decreased as the sloping angle increased consistently in
all experimental trials. Furthermore, in the case of the permeability
evaluation, the manufactured surfaces showed changes in properties for
each series of experiments performed with different scanning patterns.
The chessboard pattern showed a change of 67 degrees to 107 degrees in
contact angle, while the meander and stripe patterns showed a variation
in contact angle in a range of 65 degrees to 85 degrees. The different
scanning strategies in the SLM process resulted in an alternative method
for surface enhancement with different hydrophobicity properties,
valuable for designing the most appropriate permeability characteristics
for specific applications.
Filiaciones:
Segura-Cardenas, Emmanuel:
Tecnol Monterrey, Escuela Ingn & Ciencias, Ave Eugenio Garza Sada 2501 Sur, Monterrey 64849, Nuevo Leon, Mexico
Ramirez-Cedillo, Erick:
Tecnol Monterrey, Escuela Ingn & Ciencias, Ave Eugenio Garza Sada 2501 Sur, Monterrey 64849, Nuevo Leon, Mexico
Alejandro Sandoval-Robles, Jesus:
Tecnol Monterrey, Escuela Ingn & Ciencias, Ave Eugenio Garza Sada 2501 Sur, Monterrey 64849, Nuevo Leon, Mexico
Ruiz-Huerta, Leopoldo:
UNAM, Ctr Ciencias Aplicadas & Desarrollo Tecnol CCADET, MADiT, Lab Nacl Manufactura Adit Digitalizac & Tomog Com, Circuito Exterior S-N,Ciudad Univ AP 70-186, Ciudad De Mexico 04510, Mexico
Caballero-Ruiz, Alberto:
UNAM, Ctr Ciencias Aplicadas & Desarrollo Tecnol CCADET, MADiT, Lab Nacl Manufactura Adit Digitalizac & Tomog Com, Circuito Exterior S-N,Ciudad Univ AP 70-186, Ciudad De Mexico 04510, Mexico
Siller, Hector R.:
Univ North Texas, Dept Engn Technol, 3940 North Elm St, Denton, TX 76207 USA
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