Deep drawing is a complicated sheet metal forming process that can be improved by using effective real-time condition monitoring techniques. One of these techniques is acoustic emission testing, which provides valuable information about the conditions of the forming process. In the present research, acoustic emissions generated during the deep drawing of AISI 316 stainless steel sheet metal have been studied in order to identify common damage mechanisms. After extracting the characteristics of recorded acoustic emissions with regard to microscopic observations of sheet surfaces and previous reports, the acoustic emissions have been correlated to different damage mechanisms. According to the presented results, the technique can detect common damages that can occur during the deep drawing process, such as plastic deformation, material transfer, and frictional junctions. The effects of some important parameters such as lubrication condition and forming speed on acoustic emission characteristics are also discussed.
Baccar, D., and D. Söffker, 2015, “Wear Detection by Means of Wavelet-Based Acoustic Emission Analysis,” Mechanical Systems and Signal Processing, Vol. 60–61, pp. 198–207.
Baranov, V.M., E. Kudryavtsev, G. Sarychev, and V. Schavelin, 2006, Acoustic Emission in Friction, Elsevier, London.
Behrens, Bernd-Arno, Sven Höbner, and Kai Wölki, 2017, “Acoustic Emission—A Promising and Challenging Technique for Process Monitoring in Sheet Metal Forming,” Journal of Manufacturing Processes, Vol. 29, pp. 281–288.
Ebrahimkhanlou, A., and S. Salamone, 2017a, “A Probabilistic Framework for Single-Sensor Acoustic Emission Source Localization in Thin Metallic Plates,” Smart Materials and Structures, Vol. 26, No. 9, pp. 95026.
Ebrahimkhanlou, A., and S. Salamone, 2017b, “Acoustic Emission Source Localization in Thin Metallic Plates: A Single-Sensor Approach Based on Multimodal Edge Reflections,” Ultrasonics, Vol. 78, pp. 134–145.
Ebrahimkhanlou, A., and S. Salamone, 2017c, “Probabilistic Location Estimation of Acoustic Emission Sources in Isotropic Plates with One Sensor,” Proceedings of SPIE 10170, Health Monitoring of Structural and Biological Systems 2017, ed. Tribikram Kundu and Paul Fromme, 1017029 (5 April 2017).
Hao, S., S. Ramalingam, and B.E. Klamecki, 2000, “Acoustic Emission Monitoring of Sheet Metal Forming: Characterization of the Transducer, the Work Material and the Process,” Journal of Materials Processing Technology, Vol. 101, No. 1–3, pp. 124–136.
Hase, A., M. Wada, and H. Mishina, 2014, “Scanning Electron Microscope Observation Study for Identification of Wear Mechanism Using Acoustic Emission Technique,” Tribology International, Vol. 72, pp. 51–57.
Hase, A., H. Mishina, and M. Wada, 2012, “Correlation between Features of Acoustic Emission Signals and Mechanical Wear Mechanisms,” Wear, Vol. 292–293, pp. 144–150.
Mostafavi, S., 2008, “Mechanism Identification of AE Generation in Friction Processes,” Dissertation, Amirkabir University of Technology, Iran.
Mostafavi, S., C. Teymuri-Sindi C, F. Pashmforoush, and R. Farshbaf-Zinati, 2013, “Acoustic Emission Waves from the Onset of Galling between Tool and Sheet Material,” Materials Evaluation, Vol. 71, No. 11, pp. 1335–1342.
Nam, K.-W., C.-Y. Kang, J.-Y. Do, S.-H. Ahn, and S.-K. Lee, 2001, “Fatigue Crack Propagation of Super Duplex Stainless Steel with Dispersed Structure and Time-Frequency Analysis of Acoustic Emission,” Metals and Materials International, Vol. 7, No. 3, pp. 227–231.
Skåre, T., P. Thilderkvist, and J.E. Ståhl, 1998, “Monitoring of Friction Processes by Means of Acoustic Emission Measurements—Deep Drawing of Sheet Metal,” Journal of Materials Processing Technology, Vol. 80–81, pp. 263–272.
Skåre, T., and F. Krantz , 2003, “Wear and Frictional Behavior of High Strength Steel in Stamping Monitored by Acoustic emission Technique,” Wear, Vol. 255, No. 7–12, pp. 1471–1479.
Teymuri-Sindi, C., M. Ahmadi-Najafabadi, and M. Salehi, 2012, “Investigation of Surface Damages during Sheet Metal Forming Using Acoustic Emission,” Proceedings of the Instituion of Mechanical Engineers, Part J: Journal of Engineering Tribology, Vol. 227, No. 3, pp. 286–296.
Teymuri-Sindi, C., M. Ahmadi-Najafabadi, and M. Salehi, 2013, “Tribological Behavior of Sheet Metal Forming Process Using Acoustic Emission Characteristics,” Tribology Letters, Vol. 52, No. 1, 67–79.
Yang, M., K. Manabea, K. Hayashi, M. Miyazaki, and N. Aikawa, 2003, “Data Fusion of Distributed AE Sensors for the Detection of Friction Sources during Press Forming,” Journal of Materials Processing Technology, Vol. 139, No. 1–3, pp. 368–372.
34 Page Views
0 PDF Downloads
0 Facebook Shares