naa a22 4500 510823572 CHVBK 20180411083545.0 cr unu---uuuuu 180411e20131001xx s 000 0 eng 10.1007/s12541-013-0238-0 doi (NATIONALLICENCE)springer-10.1007/s12541-013-0238-0 Development of acoustic emission signal parameter and its application for strength estimation of friction welded joints [Elektronische Daten] [Yu-Sik Kong, Dae-Min Kang, Tae-Wan Kim, Jae-Seob Kwak] This study aimed to devise the new method for tensile strength online prediction by using the acoustic emission signals in friction welding process. To verify the effect of operation parameters on the tensile strength of friction welded joints, Taguchi's method was used at experimental and analysis results. From the acoustic emission signals measured in the friction welding of Al6061 aluminum alloy material, the dimensionless coefficient, which consisted of root mean square and variance of signals, was defined. The tensile strength prediction model was developed with the dimensionless coefficient and then the online prediction on tensile strength of friction welded joints was conducted. The process parameters of heating pressure and heating time dominantly affected the tensile strength of friction welded joints. At the study result, the tensile strength online prediction by using acoustic emission signals was the useful and accurate method for friction welded joints of the Al6061 aluminum alloy material. Korean Society for Precision Engineering and Springer-Verlag Berlin Heidelberg, 2013 Tensile strength nationallicence Acoustic emission signals nationallicence Taguchi's method nationallicence Dimensionless coefficient nationallicence Friction welding nationallicence Kong Yu-Sik LINC, Pukyong National University, San 100, Yongdang-dong, Nam-gu, 608-739, Busan 608-739, South Korea aut Kang Dae-Min Department of Mechanical Engineering, Pukyong National University, San 100, Yongdang-dong, Nam-gu, 608-739, Busan 608-739, South Korea aut Kim Tae-Wan Department of Mechanical Engineering, Pukyong National University, San 100, Yongdang-dong, Nam-gu, 608-739, Busan 608-739, South Korea aut Kwak Jae-Seob Department of Mechanical Engineering, Pukyong National University, San 100, Yongdang-dong, Nam-gu, 608-739, Busan 608-739, South Korea aut International Journal of Precision Engineering and Manufacturing Springer Berlin Heidelberg 14/10(2013-10-01), 1783-1789 2234-7593 14:10<1783 2013 14 12541 https://doi.org/10.1007/s12541-013-0238-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12541-013-0238-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kong Yu-Sik LINC, Pukyong National University, San 100, Yongdang-dong, Nam-gu, 608-739, Busan 608-739, South Korea aut NATIONALLICENCE 700 1- Kang Dae-Min Department of Mechanical Engineering, Pukyong National University, San 100, Yongdang-dong, Nam-gu, 608-739, Busan 608-739, South Korea aut NATIONALLICENCE 700 1- Kim Tae-Wan Department of Mechanical Engineering, Pukyong National University, San 100, Yongdang-dong, Nam-gu, 608-739, Busan 608-739, South Korea aut NATIONALLICENCE 700 1- Kwak Jae-Seob Department of Mechanical Engineering, Pukyong National University, San 100, Yongdang-dong, Nam-gu, 608-739, Busan 608-739, South Korea aut NATIONALLICENCE 773 0- International Journal of Precision Engineering and Manufacturing Springer Berlin Heidelberg 14/10(2013-10-01), 1783-1789 2234-7593 14:10<1783 2013 14 12541 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer