Defectoscopy of Direct Laser Sintered Metals by Low Transmission Ultrasonic Frequencies
Апстракт
This paper focuses on the improvement of ultrasonic defectoscopy used for machine elements produced by direct laser metal sintering. The direct laser metal sintering process introduces the mixed metal powder and performs its subsequent laser consolidation in a single production step. Mechanical elements manufactured by laser sintering often contain many hollow cells due to weight reduction. The popular pulse echo defectoscopy method employing very high frequencies of several GHz is not successful on these samples. The aim of this paper is to present quadraphonic transmission ultrasound defectoscopy which uses low range frequencies of few tens of kHz. Therefore, the advantage of this method is that it enables defectoscopy for honeycombed materials manufactured by direct laser sintering. This paper presents the results of testing performed on AlSi12 sample.
Кључне речи:
Direct laser metal sintering / AlSi12 / Ultrasonic defectoscopy / Quadraphonic transmissional ultrasonic defectoscopyИзвор:
Science of Sintering, 2012, 44, 2, 177-185Издавач:
- Međunarodni Institut za nauku o sinterovanju, Beograd
Финансирање / пројекти:
- Усмерена синтеза, структура и својства мултифункционалних материјала (RS-MESTD-Basic Research (BR or ON)-172057)
Колекције
Институција/група
Geografski fakultetTY - JOUR AU - Ebersold, Zoran AU - Mitrović, Nebojša AU - Đukić, Slobodan AU - Jordović, Branka AU - Peulić, Aleksandar PY - 2012 UR - https://gery.gef.bg.ac.rs/handle/123456789/489 AB - This paper focuses on the improvement of ultrasonic defectoscopy used for machine elements produced by direct laser metal sintering. The direct laser metal sintering process introduces the mixed metal powder and performs its subsequent laser consolidation in a single production step. Mechanical elements manufactured by laser sintering often contain many hollow cells due to weight reduction. The popular pulse echo defectoscopy method employing very high frequencies of several GHz is not successful on these samples. The aim of this paper is to present quadraphonic transmission ultrasound defectoscopy which uses low range frequencies of few tens of kHz. Therefore, the advantage of this method is that it enables defectoscopy for honeycombed materials manufactured by direct laser sintering. This paper presents the results of testing performed on AlSi12 sample. PB - Međunarodni Institut za nauku o sinterovanju, Beograd T2 - Science of Sintering T1 - Defectoscopy of Direct Laser Sintered Metals by Low Transmission Ultrasonic Frequencies VL - 44 IS - 2 SP - 177 EP - 185 DO - 10.2298/SOS1202177E UR - https://hdl.handle.net/21.15107/rcub_gery_489 ER -
@article{ author = "Ebersold, Zoran and Mitrović, Nebojša and Đukić, Slobodan and Jordović, Branka and Peulić, Aleksandar", year = "2012", abstract = "This paper focuses on the improvement of ultrasonic defectoscopy used for machine elements produced by direct laser metal sintering. The direct laser metal sintering process introduces the mixed metal powder and performs its subsequent laser consolidation in a single production step. Mechanical elements manufactured by laser sintering often contain many hollow cells due to weight reduction. The popular pulse echo defectoscopy method employing very high frequencies of several GHz is not successful on these samples. The aim of this paper is to present quadraphonic transmission ultrasound defectoscopy which uses low range frequencies of few tens of kHz. Therefore, the advantage of this method is that it enables defectoscopy for honeycombed materials manufactured by direct laser sintering. This paper presents the results of testing performed on AlSi12 sample.", publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd", journal = "Science of Sintering", title = "Defectoscopy of Direct Laser Sintered Metals by Low Transmission Ultrasonic Frequencies", volume = "44", number = "2", pages = "177-185", doi = "10.2298/SOS1202177E", url = "https://hdl.handle.net/21.15107/rcub_gery_489" }
Ebersold, Z., Mitrović, N., Đukić, S., Jordović, B.,& Peulić, A.. (2012). Defectoscopy of Direct Laser Sintered Metals by Low Transmission Ultrasonic Frequencies. in Science of Sintering Međunarodni Institut za nauku o sinterovanju, Beograd., 44(2), 177-185. https://doi.org/10.2298/SOS1202177E https://hdl.handle.net/21.15107/rcub_gery_489
Ebersold Z, Mitrović N, Đukić S, Jordović B, Peulić A. Defectoscopy of Direct Laser Sintered Metals by Low Transmission Ultrasonic Frequencies. in Science of Sintering. 2012;44(2):177-185. doi:10.2298/SOS1202177E https://hdl.handle.net/21.15107/rcub_gery_489 .
Ebersold, Zoran, Mitrović, Nebojša, Đukić, Slobodan, Jordović, Branka, Peulić, Aleksandar, "Defectoscopy of Direct Laser Sintered Metals by Low Transmission Ultrasonic Frequencies" in Science of Sintering, 44, no. 2 (2012):177-185, https://doi.org/10.2298/SOS1202177E ., https://hdl.handle.net/21.15107/rcub_gery_489 .